TW202226854A - Bluetooth audio broadcasting system and related multi-member bluetooth device supporting bluetooth low energy audio broadcasting operations and capable of synchronously adjusting audio volume - Google Patents

Bluetooth audio broadcasting system and related multi-member bluetooth device supporting bluetooth low energy audio broadcasting operations and capable of synchronously adjusting audio volume Download PDF

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TW202226854A
TW202226854A TW110143295A TW110143295A TW202226854A TW 202226854 A TW202226854 A TW 202226854A TW 110143295 A TW110143295 A TW 110143295A TW 110143295 A TW110143295 A TW 110143295A TW 202226854 A TW202226854 A TW 202226854A
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bluetooth
audio
circuit
packets
predetermined
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TWI800999B (en
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劉又瑄
林勇傑
顧青
魏碧
陳奕錚
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瑞昱半導體股份有限公司
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Priority to CN202311265571.3A priority patent/CN117177221A/en
Priority to CN202210675219.6A priority patent/CN116156469A/en
Priority to US17/845,429 priority patent/US20220322209A1/en
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • G10L2015/223—Execution procedure of a spoken command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups

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Abstract

A Bluetooth audio broadcasting system includes: an audio broadcasting device arranged to operably broadcast BLE (Bluetooth Low Energy) audio packets; a first Bluetooth member device arranged to operably parse the BLE audio packets to acquire a predetermined audio data and to operably control a first audio playback circuit to playback the predetermined audio data; and a second Bluetooth member device arranged to operably parse the BLE audio packets to acquire the predetermined audio data and to operably control a second audio playback circuit to playback the predetermined audio data. The audio broadcasting device is arranged to operably transmit a predetermined audio volume instruction to the first Bluetooth member device and the second Bluetooth member device before broadcasting the BLE audio packets. The first Bluetooth member is arranged to operably configure an audio volume of the first audio playback circuit in advance according to the predetermined audio volume instruction. The second Bluetooth member is arranged to operably configure an audio volume of the second audio playback circuit in advance according to the predetermined audio volume instruction.

Description

支援低功耗藍牙音訊廣播運作並可同步調整音量大小的藍牙音訊廣播系統及相關的多成員藍牙裝置A Bluetooth audio broadcast system and related multi-member Bluetooth devices that support Bluetooth low energy audio broadcast operation and can adjust the volume synchronously

本發明涉及藍牙技術，尤指一種支援低功耗藍牙（Bluetooth Low Energy，BLE）音訊廣播運作、並可同步調整音量大小的藍牙音訊廣播系統及相關的多成員藍牙裝置。The invention relates to bluetooth technology, in particular to a bluetooth audio broadcast system and a related multi-member bluetooth device which supports low power consumption bluetooth (Bluetooth Low Energy, BLE) audio broadcast operation and can adjust the volume synchronously.

藍牙技術區分成兩大類，一類是藍牙傳統（Classic Bluetooth/Legacy Bluetooth）技術，另一類則是低功耗藍牙（Bluetooth Low Energy，BLE）技術。BLE技術與藍牙傳統技術彼此不具相容性（或不能完全相容），但兩種技術可共存（coexist）於同一藍牙裝置或同一藍牙晶片。換言之，單一藍牙裝置或單一藍牙晶片可設計成同時支援BLE技術與藍牙傳統技術，也可設計成只支援其中一種藍牙通信標準。Bluetooth technology is divided into two categories, one is Classic Bluetooth/Legacy Bluetooth technology, and the other is Bluetooth Low Energy (BLE) technology. BLE technology and Bluetooth legacy technology are not compatible (or not completely compatible) with each other, but the two technologies can coexist (coexist) on the same Bluetooth device or the same Bluetooth chip. In other words, a single Bluetooth device or a single Bluetooth chip can be designed to support both BLE technology and Bluetooth legacy technology, or it can be designed to support only one of the Bluetooth communication standards.

基於藍牙核心規格5.2版本所新推出的低功耗藍牙音訊（Bluetooth LE Audio，BLE Audio）技術（以下簡稱BLE音訊技術），是藍牙技術發展20多年來，對於音訊傳輸技術規格的重大更新。BLE音訊技術的主要優點在於可以傳輸更高質量的音訊，並同時大幅降低功耗。另外，BLE音訊技術也利用稱為廣播等時串流（Broadcast Isochronous Stream，BIS）的新機制來進行音訊廣播運作。利用多成員藍牙裝置來接收及播放採用BLE音訊技術的音訊廣播內容，是未來藍牙相關應用的主要發展方向之一。前述的多成員藍牙裝置指的是由多個互相搭配使用的藍牙電路所組成的藍牙裝置，例如，成對的藍牙耳機、成組的藍牙喇叭等等。The new low-power Bluetooth audio (Bluetooth LE Audio, BLE Audio) technology (hereinafter referred to as BLE audio technology) based on the 5.2 version of the Bluetooth core specification is a major update to the audio transmission technical specifications after the development of Bluetooth technology for more than 20 years. The main advantage of BLE audio technology is that it can transmit higher quality audio while significantly reducing power consumption. In addition, BLE audio technology also utilizes a new mechanism called Broadcast Isochronous Stream (BIS) for audio broadcast operations. Using multi-member Bluetooth devices to receive and play audio broadcast content using BLE audio technology is one of the main development directions for future Bluetooth-related applications. The aforementioned multi-member Bluetooth device refers to a Bluetooth device composed of a plurality of Bluetooth circuits used in conjunction with each other, for example, a pair of Bluetooth earphones, a group of Bluetooth speakers, and the like.

眾所周知，BLE音訊技術並未規範在利用BIS進行音訊廣播時，應該如何彈性地調整音訊接收端的音量播放大小。當然，BLE音訊技術更沒有規範在利用BIS進行音訊廣播時，應該如何同步地調整多成員藍牙裝置中的不同藍牙成員裝置的音量播放大小。可以預見的是，利用BLE音訊技術來實現音訊廣播時可能會衍生某些問題。例如，無法預期音量大小的音訊廣播有可能造成某些使用者感到不適或不悅，甚至某些使用者可能會因為接收到突如其來且音量過大的音訊廣播而受到驚嚇。再者，不同的使用者對於音量大小的敏感度與容忍程度並不相同，所以單一的音量大小設定顯然無法同時滿足不同使用者的需求。As we all know, BLE audio technology does not standardize how to flexibly adjust the volume playback size of the audio receiving end when using BIS for audio broadcasting. Of course, the BLE audio technology does not regulate how to synchronously adjust the volume playback volume of different Bluetooth member devices in a multi-member Bluetooth device when using BIS for audio broadcasting. It is foreseeable that some problems may arise when using BLE audio technology to implement audio broadcasting. For example, unpredictable audio broadcasts may cause some users to feel uncomfortable or unhappy, and some users may even be startled when they receive a sudden audio broadcast at an excessively loud volume. Furthermore, different users have different sensitivities and tolerances to the volume level, so a single volume level setting obviously cannot meet the needs of different users at the same time.

因此，在利用多成員藍牙裝置接收及播放採用BLE音訊技術的音訊廣播時，倘若不能彈性且同步地調整多成員藍牙裝置中的不同藍牙成員裝置的音量播放大小，將對BLE音訊技術在音訊廣播應用中的發展前景造成嚴重阻礙。Therefore, when using a multi-member Bluetooth device to receive and play audio broadcasts using BLE audio technology, if the volume playback volume of different Bluetooth member devices in the multi-member Bluetooth device cannot be adjusted flexibly and synchronously, the BLE audio technology will be used in the audio broadcast. The prospect of development in applications poses a serious impediment.

有鑑於此，如何在利用多成員藍牙裝置接收及播放採用BLE音訊技術的音訊廣播時，彈性且同步地調整多成員藍牙裝置中的不同藍牙成員裝置的音量播放大小，實為有待解決的問題。In view of this, how to flexibly and synchronously adjust the volume playback volume of different Bluetooth member devices in the multi-member Bluetooth device when receiving and playing audio broadcasts using the BLE audio technology using the multi-member Bluetooth device is a problem to be solved.

本說明書提供一種藍牙音訊廣播系統的實施例，其包含有：一音訊廣播裝置，設置成可透過一廣播等時串流邏輯傳輸通道，廣播一或多個低功耗藍牙音訊封包；一第一藍牙成員裝置，其包含：一第一藍牙通信電路，設置成可接收該一或多個低功耗藍牙音訊封包；一第一音訊處理電路；以及一第一控制電路，耦接於該第一藍牙通信電路及該第一音訊處理電路，設置成可解析該第一藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路控制一第一音訊播放電路播放該預定音訊資料；以及一第二藍牙成員裝置，其包含：一第二藍牙通信電路，設置成可接收該一或多個低功耗藍牙音訊封包；一第二音訊處理電路；以及一第二控制電路，耦接於該第二藍牙通信電路及該第二音訊處理電路，設置成可解析該第二藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路控制一第二音訊播放電路播放該預定音訊資料；其中，該音訊廣播裝置還設置成可在廣播該一或多個低功耗藍牙音訊封包之前，先發送一預定音量指示給該第一藍牙成員裝置及該第二藍牙成員裝置；其中，該第一藍牙通信電路還設置成可接收該預定音量指示，且該第一控制電路還設置成可依據該預定音量指示，控制該第一音訊處理電路預先設置該第一音訊播放電路的一音量大小；其中，該第二藍牙通信電路還設置成可接收該預定音量指示，且該第二控制電路還設置成可依據該預定音量指示，控制該第二音訊處理電路預先設置該第二音訊播放電路的一音量大小。This specification provides an embodiment of a Bluetooth audio broadcast system, which includes: an audio broadcast device configured to broadcast one or more low-power Bluetooth audio packets through a broadcast isochronous streaming logical transmission channel; a first A bluetooth member device, comprising: a first bluetooth communication circuit configured to receive the one or more low-power bluetooth audio packets; a first audio processing circuit; and a first control circuit coupled to the first The Bluetooth communication circuit and the first audio processing circuit are configured to parse the one or more low-power Bluetooth audio packets received by the first Bluetooth communication circuit to obtain a predetermined audio data, and instruct the first audio processing circuit controlling a first audio playback circuit to play the predetermined audio data; and a second Bluetooth member device comprising: a second Bluetooth communication circuit configured to receive the one or more low-power Bluetooth audio packets; a second Bluetooth member device audio processing circuit; and a second control circuit, coupled to the second bluetooth communication circuit and the second audio processing circuit, configured to parse the one or more low-power bluetooth received by the second bluetooth communication circuit audio packets to obtain the predetermined audio data, and instruct the second audio processing circuit to control a second audio playback circuit to play the predetermined audio data; wherein, the audio broadcasting device is also configured to broadcast the one or more low power consumption Before the Bluetooth audio packet, a predetermined volume indication is sent to the first Bluetooth member device and the second Bluetooth member device; wherein, the first Bluetooth communication circuit is further configured to receive the predetermined volume indication, and the first control circuit It is also configured to control the first audio processing circuit to preset a volume of the first audio playback circuit according to the predetermined volume instruction; wherein, the second Bluetooth communication circuit is also configured to receive the predetermined volume instruction, and the The second control circuit is further configured to control the second audio processing circuit to preset a volume of the second audio playback circuit according to the predetermined volume indication.

本說明書另提供一種多成員藍牙裝置的實施例，其包含有：一第一藍牙成員裝置，其包含：一第一藍牙通信電路，設置成可透過一廣播等時串流邏輯傳輸通道，接收一音訊廣播裝置所廣播的一或多個低功耗藍牙音訊封包；一第一音訊處理電路；以及一第一控制電路，耦接於該第一藍牙通信電路及該第一音訊處理電路，設置成可解析該第一藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路控制一第一音訊播放電路播放該預定音訊資料；以及一第二藍牙成員裝置，其包含：一第二藍牙通信電路，設置成可透過該廣播等時串流邏輯傳輸通道，接收該音訊廣播裝置所廣播的該一或多個低功耗藍牙音訊封包；一第二音訊處理電路；以及一第二控制電路，耦接於該第二藍牙通信電路及該第二音訊處理電路，設置成可解析該第二藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路控制一第二音訊播放電路播放該預定音訊資料；其中，該第一控制電路還設置成控制該第一藍牙成員裝置扮演一藍牙微網中的一藍牙主裝置，而該第二控制電路還設置成控制該第二藍牙成員裝置扮演該藍牙微網中的一藍牙從裝置；其中，該音訊廣播裝置在廣播該一或多個低功耗藍牙音訊封包之前，還會先發送一預定音量指示給該第一藍牙成員裝置及該第二藍牙成員裝置；其中，該第一藍牙通信電路還設置成可接收該預定音量指示，且該第一控制電路還設置成可依據該預定音量指示，控制該第一音訊處理電路預先設置該第一音訊播放電路的一音量大小；其中，該第二藍牙通信電路還設置成可接收該預定音量指示，且該第二控制電路還設置成可依據該預定音量指示，控制該第二音訊處理電路預先設置該第二音訊播放電路的一音量大小。This specification further provides an embodiment of a multi-member Bluetooth device, which includes: a first Bluetooth member device, which includes: a first Bluetooth communication circuit configured to receive a One or more low-power Bluetooth audio packets broadcast by the audio broadcasting device; a first audio processing circuit; and a first control circuit, coupled to the first Bluetooth communication circuit and the first audio processing circuit, and configured to can parse the one or more low-power Bluetooth audio packets received by the first Bluetooth communication circuit to obtain a predetermined audio data, and instruct the first audio processing circuit to control a first audio playback circuit to play the predetermined audio data; and a second bluetooth member device comprising: a second bluetooth communication circuit configured to receive the one or more low-power bluetooth audios broadcast by the audio broadcast device through the broadcast isochronous streaming logical transmission channel packet; a second audio processing circuit; and a second control circuit, coupled to the second Bluetooth communication circuit and the second audio processing circuit, configured to parse the one or more data received by the second Bluetooth communication circuit A low-power Bluetooth audio packet is used to obtain the predetermined audio data, and instruct the second audio processing circuit to control a second audio playback circuit to play the predetermined audio data; wherein, the first control circuit is further configured to control the first Bluetooth The member device acts as a bluetooth master device in a bluetooth piconet, and the second control circuit is further configured to control the second bluetooth member device to act as a bluetooth slave device in the bluetooth piconet; wherein, the audio broadcasting device is broadcasting Before the one or more low-power bluetooth audio packets, a predetermined volume indication is also sent to the first bluetooth member device and the second bluetooth member device; wherein, the first bluetooth communication circuit is further configured to receive the a predetermined volume indication, and the first control circuit is further configured to control the first audio processing circuit to preset a volume level of the first audio playback circuit according to the predetermined volume indication; wherein, the second Bluetooth communication circuit is also set The device can receive the predetermined volume indication, and the second control circuit is further configured to control the second audio processing circuit to preset a volume level of the second audio playback circuit according to the predetermined volume indication.

上述實施例的優點之一，是音訊廣播裝置可在廣播低功耗藍牙音訊封包之前，先發送一預定音量指示給第一藍牙成員裝置及第二藍牙成員裝置，以使第一藍牙成員裝置及第二藍牙成員裝置得以預先同步地設置相關音訊播放電路的音量大小。One of the advantages of the above embodiment is that the audio broadcasting device can first send a predetermined volume indication to the first Bluetooth member device and the second Bluetooth member device before broadcasting the low-power Bluetooth audio packet, so that the first Bluetooth member device and the The second Bluetooth member device can pre-synchronize the volume of the relevant audio playback circuit.

本說明書另提供一種藍牙音訊廣播系統的實施例，其包含有：一音訊廣播裝置，設置成可透過一廣播等時串流邏輯傳輸通道，廣播一或多個低功耗藍牙音訊封包；一第一藍牙成員裝置，其包含：一第一藍牙通信電路，設置成可接收該一或多個低功耗藍牙音訊封包；一第一音訊處理電路；以及一第一控制電路，耦接於該第一藍牙通信電路及該第一音訊處理電路，設置成可解析該第一藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路控制一第一音訊播放電路播放該預定音訊資料；以及一第二藍牙成員裝置，其包含：一第二藍牙通信電路，設置成可接收該一或多個低功耗藍牙音訊封包；一第二音訊處理電路；以及一第二控制電路，耦接於該第二藍牙通信電路及該第二音訊處理電路，設置成可解析該第二藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路控制一第二音訊播放電路播放該預定音訊資料；其中，在該第一藍牙成員裝置及該第二藍牙成員裝置接收到該一或多個低功耗藍牙音訊封包之後，該音訊廣播裝置還會在接收到一音量調整信號的情況下，傳送一音量調整指示給該第一藍牙成員裝置及該第二藍牙成員裝置；其中，該第一藍牙通信電路還設置成可接收該音量調整指示，且該第一控制電路還設置成可依據該音量調整指示，控制該第一音訊處理電路調整該第一音訊播放電路的一音量大小；其中，該第二藍牙通信電路還設置成可接收該音量調整指示，且該第二控制電路還設置成可依據該音量調整指示，控制該第二音訊處理電路調整該第二音訊播放電路的一音量大小。This specification also provides an embodiment of a Bluetooth audio broadcast system, which includes: an audio broadcast device configured to broadcast one or more low-power Bluetooth audio packets through a broadcast isochronous streaming logical transmission channel; a first A Bluetooth member device comprising: a first Bluetooth communication circuit configured to receive the one or more Bluetooth low energy audio packets; a first audio processing circuit; and a first control circuit coupled to the first Bluetooth A Bluetooth communication circuit and the first audio processing circuit, configured to parse the one or more low-power Bluetooth audio packets received by the first Bluetooth communication circuit to obtain a predetermined audio data, and instruct the first audio processing The circuit controls a first audio playback circuit to play the predetermined audio data; and a second Bluetooth member device, which includes: a second Bluetooth communication circuit configured to receive the one or more low-power Bluetooth audio packets; a first Bluetooth member device. Two audio processing circuits; and a second control circuit, coupled to the second Bluetooth communication circuit and the second audio processing circuit, configured to parse the one or more low power consumption received by the second Bluetooth communication circuit Bluetooth audio packets to obtain the predetermined audio data, and instruct the second audio processing circuit to control a second audio playback circuit to play the predetermined audio data; wherein the first Bluetooth member device and the second Bluetooth member device receive the predetermined audio data After one or more low-power Bluetooth audio packets, the audio broadcasting device also transmits a volume adjustment instruction to the first Bluetooth member device and the second Bluetooth member device in the case of receiving a volume adjustment signal; wherein , the first Bluetooth communication circuit is also configured to receive the volume adjustment instruction, and the first control circuit is also configured to control the first audio processing circuit to adjust a volume of the first audio playback circuit according to the volume adjustment instruction The second Bluetooth communication circuit is also configured to receive the volume adjustment instruction, and the second control circuit is also configured to control the second audio processing circuit to adjust the second audio playback circuit according to the volume adjustment instruction of a volume.

本說明書另提供一種多成員藍牙裝置的實施例，其包含有：一第一藍牙成員裝置，其包含：一第一藍牙通信電路，設置成可透過一廣播等時串流邏輯傳輸通道，接收一音訊廣播裝置所廣播的一或多個低功耗藍牙音訊封包；一第一音訊處理電路；以及一第一控制電路，耦接於該第一藍牙通信電路及該第一音訊處理電路，設置成可解析該第一藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路控制一第一音訊播放電路播放該預定音訊資料；以及一第二藍牙成員裝置，其包含：一第二藍牙通信電路，設置成可透過該廣播等時串流邏輯傳輸通道，接收該音訊廣播裝置所廣播的該一或多個低功耗藍牙音訊封包；一第二音訊處理電路；以及一第二控制電路，耦接於該第二藍牙通信電路及該第二音訊處理電路，設置成可解析該第二藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路控制一第二音訊播放電路播放該預定音訊資料；其中，該第一控制電路還設置成控制該第一藍牙成員裝置扮演一藍牙微網中的一藍牙主裝置，而該第二控制電路還設置成控制該第二藍牙成員裝置扮演該藍牙微網中的一藍牙從裝置；其中，在該第一藍牙成員裝置及該第二藍牙成員裝置接收到該一或多個低功耗藍牙音訊封包之後，該音訊廣播裝置還會在接收到一音量調整信號的情況下，傳送一音量調整指示給該第一藍牙成員裝置及該第二藍牙成員裝置；其中，該第一藍牙通信電路還設置成可接收該音量調整指示，且該第一控制電路還設置成可依據該音量調整指示，控制該第一音訊處理電路調整該第一音訊播放電路的一音量大小；其中，該第二藍牙通信電路還設置成可接收該音量調整指示，且該第二控制電路還設置成可依據該音量調整指示，控制該第二音訊處理電路調整該第二音訊播放電路的一音量大小。This specification further provides an embodiment of a multi-member Bluetooth device, which includes: a first Bluetooth member device, which includes: a first Bluetooth communication circuit configured to receive a One or more low-power Bluetooth audio packets broadcast by the audio broadcasting device; a first audio processing circuit; and a first control circuit, coupled to the first Bluetooth communication circuit and the first audio processing circuit, and configured to can parse the one or more low-power Bluetooth audio packets received by the first Bluetooth communication circuit to obtain a predetermined audio data, and instruct the first audio processing circuit to control a first audio playback circuit to play the predetermined audio data; and a second bluetooth member device comprising: a second bluetooth communication circuit configured to receive the one or more low-power bluetooth audios broadcast by the audio broadcast device through the broadcast isochronous streaming logical transmission channel packet; a second audio processing circuit; and a second control circuit, coupled to the second Bluetooth communication circuit and the second audio processing circuit, configured to parse the one or more data received by the second Bluetooth communication circuit A low-power Bluetooth audio packet is used to obtain the predetermined audio data, and instruct the second audio processing circuit to control a second audio playback circuit to play the predetermined audio data; wherein, the first control circuit is further configured to control the first Bluetooth The member device acts as a bluetooth master device in a bluetooth piconet, and the second control circuit is further configured to control the second bluetooth member device to act as a bluetooth slave device in the bluetooth piconet; wherein, in the first bluetooth member After the device and the second bluetooth member device receive the one or more low-power bluetooth audio packets, the audio broadcasting device will also send a volume adjustment instruction to the first bluetooth in the case of receiving a volume adjustment signal A member device and the second Bluetooth member device; wherein the first Bluetooth communication circuit is further configured to receive the volume adjustment instruction, and the first control circuit is further configured to control the first audio processing according to the volume adjustment instruction The circuit adjusts a volume of the first audio playback circuit; wherein, the second Bluetooth communication circuit is further configured to receive the volume adjustment instruction, and the second control circuit is also configured to control the first volume adjustment instruction according to the volume adjustment instruction. The second audio processing circuit adjusts a volume of the second audio playing circuit.

上述實施例的優點之一，是在第一藍牙成員裝置及第二藍牙成員裝置接收到音訊廣播裝置所廣播的低功耗藍牙音訊封包之後，第一藍牙成員裝置及第二藍牙成員裝置可依據音訊廣播裝置傳來的音量調整指示，同步地調整相關音訊播放電路的音量大小。One of the advantages of the above embodiment is that after the first Bluetooth member device and the second Bluetooth member device receive the low-power Bluetooth audio packet broadcast by the audio broadcast device, the first Bluetooth member device and the second Bluetooth member device can The volume adjustment instruction from the audio broadcasting device synchronously adjusts the volume of the relevant audio playback circuit.

本說明書另提供一種藍牙音訊廣播系統的實施例，其包含有：一音訊廣播裝置，設置成可透過一廣播等時串流邏輯傳輸通道，廣播一或多個低功耗藍牙音訊封包；一第一藍牙成員裝置，其包含：一第一藍牙通信電路，設置成可接收該一或多個低功耗藍牙音訊封包；一第一音訊處理電路；以及一第一控制電路，耦接於該第一藍牙通信電路及該第一音訊處理電路，設置成可解析該第一藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路控制一第一音訊播放電路播放該預定音訊資料；以及一第二藍牙成員裝置，其包含：一第二藍牙通信電路，設置成可接收該一或多個低功耗藍牙音訊封包；一第二音訊處理電路；以及一第二控制電路，耦接於該第二藍牙通信電路及該第二音訊處理電路，設置成可解析該第二藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路控制一第二音訊播放電路播放該預定音訊資料；其中，該音訊廣播裝置還會在該第一藍牙成員裝置發出一音量調整請求之後，傳送一音量調整指示給該第一藍牙成員裝置及該第二藍牙成員裝置； 其中，該第一藍牙通信電路還設置成可接收該音量調整指示，且該第一控制電路還設置成可依據該音量調整指示，控制該第一音訊處理電路調整該第一音訊播放電路的一音量大小；其中，該第二藍牙通信電路還設置成可接收該音量調整指示，且該第二控制電路還設置成可依據該音量調整指示，控制該第二音訊處理電路調整該第二音訊播放電路的一音量大小。This specification also provides an embodiment of a Bluetooth audio broadcast system, which includes: an audio broadcast device configured to broadcast one or more low-power Bluetooth audio packets through a broadcast isochronous streaming logical transmission channel; a first A Bluetooth member device comprising: a first Bluetooth communication circuit configured to receive the one or more Bluetooth low energy audio packets; a first audio processing circuit; and a first control circuit coupled to the first Bluetooth A Bluetooth communication circuit and the first audio processing circuit, configured to parse the one or more low-power Bluetooth audio packets received by the first Bluetooth communication circuit to obtain a predetermined audio data, and instruct the first audio processing The circuit controls a first audio playback circuit to play the predetermined audio data; and a second Bluetooth member device, which includes: a second Bluetooth communication circuit configured to receive the one or more low-power Bluetooth audio packets; a first Bluetooth member device. Two audio processing circuits; and a second control circuit, coupled to the second Bluetooth communication circuit and the second audio processing circuit, configured to parse the one or more low power consumption received by the second Bluetooth communication circuit The Bluetooth audio packet is used to obtain the predetermined audio data, and instruct the second audio processing circuit to control a second audio playback circuit to play the predetermined audio data; wherein, the audio broadcast device will also issue a volume adjustment on the first Bluetooth member device After the request, send a volume adjustment instruction to the first Bluetooth member device and the second Bluetooth member device; wherein, the first Bluetooth communication circuit is further configured to receive the volume adjustment instruction, and the first control circuit is also configured to The first audio processing circuit can be controlled to adjust a volume of the first audio playback circuit according to the volume adjustment instruction; wherein, the second Bluetooth communication circuit is further configured to receive the volume adjustment instruction, and the second control circuit It is also configured to control the second audio processing circuit to adjust a volume of the second audio playback circuit according to the volume adjustment instruction.

本說明書另提供一種多成員藍牙裝置的實施例，其包含有：一第一藍牙成員裝置，其包含：一第一藍牙通信電路，設置成可透過一廣播等時串流邏輯傳輸通道，接收一音訊廣播裝置所廣播的一或多個低功耗藍牙音訊封包；一第一音訊處理電路；以及一第一控制電路，耦接於該第一藍牙通信電路及該第一音訊處理電路，設置成可解析該第一藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路控制一第一音訊播放電路播放該預定音訊資料；以及一第二藍牙成員裝置，其包含：一第二藍牙通信電路，設置成可透過該廣播等時串流邏輯傳輸通道，接收該音訊廣播裝置所廣播的該一或多個低功耗藍牙音訊封包；一第二音訊處理電路；以及一第二控制電路，耦接於該第二藍牙通信電路及該第二音訊處理電路，設置成可解析該第二藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路控制一第二音訊播放電路播放該預定音訊資料；其中，該音訊廣播裝置還會在該第一藍牙成員裝置發出一音量調整請求之後，傳送一音量調整指示給該第一藍牙成員裝置及該第二藍牙成員裝置；其中，該第一藍牙通信電路還設置成可接收該音量調整指示，且該第一控制電路還設置成可依據該音量調整指示，控制該第一音訊處理電路調整該第一音訊播放電路的一音量大小；其中，該第二藍牙通信電路還設置成可接收該音量調整指示，且該第二控制電路還設置成可依據該音量調整指示，控制該第二音訊處理電路調整該第二音訊播放電路的一音量大小。This specification further provides an embodiment of a multi-member Bluetooth device, which includes: a first Bluetooth member device, which includes: a first Bluetooth communication circuit configured to receive a One or more low-power Bluetooth audio packets broadcast by the audio broadcasting device; a first audio processing circuit; and a first control circuit, coupled to the first Bluetooth communication circuit and the first audio processing circuit, and configured to can parse the one or more low-power Bluetooth audio packets received by the first Bluetooth communication circuit to obtain a predetermined audio data, and instruct the first audio processing circuit to control a first audio playback circuit to play the predetermined audio data; and a second bluetooth member device comprising: a second bluetooth communication circuit configured to receive the one or more low-power bluetooth audios broadcast by the audio broadcast device through the broadcast isochronous streaming logical transmission channel packet; a second audio processing circuit; and a second control circuit, coupled to the second Bluetooth communication circuit and the second audio processing circuit, configured to parse the one or more data received by the second Bluetooth communication circuit A low-power bluetooth audio packet to obtain the predetermined audio data, and instruct the second audio processing circuit to control a second audio playback circuit to play the predetermined audio data; wherein, the audio broadcast device will also be used in the first Bluetooth member device. After issuing a volume adjustment request, send a volume adjustment instruction to the first Bluetooth member device and the second Bluetooth member device; wherein, the first Bluetooth communication circuit is further configured to receive the volume adjustment instruction, and the first control The circuit is further configured to control the first audio processing circuit to adjust a volume of the first audio playback circuit according to the volume adjustment instruction; wherein, the second Bluetooth communication circuit is also configured to receive the volume adjustment instruction, and the The second control circuit is further configured to control the second audio processing circuit to adjust a volume of the second audio playback circuit according to the volume adjustment instruction.

上述實施例的優點之一，是音訊廣播裝置可在第一藍牙成員裝置發出一音量調整請求之後，傳送一音量調整指示給第一藍牙成員裝置及第二藍牙成員裝置，以使第一藍牙成員裝置及第二藍牙成員裝置得以依據該音量調整指示，同步地調整相關音訊播放電路的音量大小。One of the advantages of the above embodiment is that the audio broadcasting device can transmit a volume adjustment instruction to the first Bluetooth member device and the second Bluetooth member device after the first Bluetooth member device sends a volume adjustment request, so that the first Bluetooth member The device and the second Bluetooth member device can synchronously adjust the volume of the relevant audio playback circuit according to the volume adjustment instruction.

本說明書另提供一種藍牙音訊廣播系統的實施例，其包含有：一音訊廣播裝置，設置成可透過一廣播等時串流邏輯傳輸通道，廣播一或多個低功耗藍牙音訊封包；一第一藍牙成員裝置，其包含：一第一藍牙通信電路，設置成可接收該一或多個低功耗藍牙音訊封包；一第一音訊處理電路；以及一第一控制電路，耦接於該第一藍牙通信電路及該第一音訊處理電路，設置成可解析該第一藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路控制一第一音訊播放電路播放該預定音訊資料；以及一第二藍牙成員裝置，其包含：一第二藍牙通信電路，設置成可接收該一或多個低功耗藍牙音訊封包；一第二音訊處理電路；以及一第二控制電路，耦接於該第二藍牙通信電路及該第二音訊處理電路，設置成可解析該第二藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路控制一第二音訊播放電路播放該預定音訊資料；其中，該第一音訊處理電路還設置成可在該第一藍牙通信電路接收到該一或多個低功耗藍牙音訊封包之後，依據該音訊廣播裝置以外的另一裝置傳來的一音量調整指示，調整該第一音訊播放電路的一音量大小；其中，該第二音訊處理電路還設置成可在該第二藍牙通信電路接收到該一或多個低功耗藍牙音訊封包之後，依據該音量調整指示，調整該第二音訊播放電路的一音量大小。This specification also provides an embodiment of a Bluetooth audio broadcast system, which includes: an audio broadcast device configured to broadcast one or more low-power Bluetooth audio packets through a broadcast isochronous streaming logical transmission channel; a first A Bluetooth member device comprising: a first Bluetooth communication circuit configured to receive the one or more Bluetooth low energy audio packets; a first audio processing circuit; and a first control circuit coupled to the first Bluetooth A Bluetooth communication circuit and the first audio processing circuit, configured to parse the one or more low-power Bluetooth audio packets received by the first Bluetooth communication circuit to obtain a predetermined audio data, and instruct the first audio processing The circuit controls a first audio playback circuit to play the predetermined audio data; and a second Bluetooth member device, which includes: a second Bluetooth communication circuit configured to receive the one or more low-power Bluetooth audio packets; a first Bluetooth member device. Two audio processing circuits; and a second control circuit, coupled to the second Bluetooth communication circuit and the second audio processing circuit, configured to parse the one or more low power consumption received by the second Bluetooth communication circuit The Bluetooth audio packet is used to obtain the predetermined audio data, and instruct the second audio processing circuit to control a second audio playback circuit to play the predetermined audio data; wherein, the first audio processing circuit is also configured to be able to operate in the first Bluetooth communication circuit After receiving the one or more low-power Bluetooth audio packets, adjust a volume of the first audio playback circuit according to a volume adjustment instruction from another device other than the audio broadcasting device; wherein the second audio playback circuit The audio processing circuit is further configured to adjust a volume of the second audio playback circuit according to the volume adjustment instruction after the second Bluetooth communication circuit receives the one or more low-power Bluetooth audio packets.

本說明書另提供一種多成員藍牙裝置的實施例，其包含有：一第一藍牙成員裝置，其包含：一第一藍牙通信電路，設置成可透過一廣播等時串流邏輯傳輸通道，接收一音訊廣播裝置所廣播的一或多個低功耗藍牙音訊封包；一第一音訊處理電路；以及一第一控制電路，耦接於該第一藍牙通信電路及該第一音訊處理電路，設置成可解析該第一藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路控制一第一音訊播放電路播放該預定音訊資料；以及一第二藍牙成員裝置，其包含：一第二藍牙通信電路，設置成可透過該廣播等時串流邏輯傳輸通道，接收該音訊廣播裝置所廣播的該一或多個低功耗藍牙音訊封包；一第二音訊處理電路；以及一第二控制電路，耦接於該第二藍牙通信電路及該第二音訊處理電路，設置成可解析該第二藍牙通信電路接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路控制一第二音訊播放電路播放該預定音訊資料；其中，該第一控制電路還設置成可在該第一藍牙通信電路接收到該一或多個低功耗藍牙音訊封包之後，依據該音訊廣播裝置以外的另一裝置傳來的一音量調整指示，控制該第一音訊處理電路調整該第一音訊播放電路的一音量大小；其中，該第二控制電路還設置成可在該第二藍牙通信電路接收到該一或多個低功耗藍牙音訊封包之後，依據該音量調整指示，控制該第二音訊處理電路調整該第二音訊播放電路的一音量大小。This specification further provides an embodiment of a multi-member Bluetooth device, which includes: a first Bluetooth member device, which includes: a first Bluetooth communication circuit configured to receive a One or more low-power Bluetooth audio packets broadcast by the audio broadcasting device; a first audio processing circuit; and a first control circuit, coupled to the first Bluetooth communication circuit and the first audio processing circuit, and configured to can parse the one or more low-power Bluetooth audio packets received by the first Bluetooth communication circuit to obtain a predetermined audio data, and instruct the first audio processing circuit to control a first audio playback circuit to play the predetermined audio data; and a second bluetooth member device comprising: a second bluetooth communication circuit configured to receive the one or more low-power bluetooth audios broadcast by the audio broadcast device through the broadcast isochronous streaming logical transmission channel packet; a second audio processing circuit; and a second control circuit, coupled to the second Bluetooth communication circuit and the second audio processing circuit, configured to parse the one or more data received by the second Bluetooth communication circuit A low-power Bluetooth audio packet is used to obtain the predetermined audio data, and instruct the second audio processing circuit to control a second audio playback circuit to play the predetermined audio data; wherein, the first control circuit is also configured to After the Bluetooth communication circuit receives the one or more low-power Bluetooth audio packets, it controls the first audio processing circuit to adjust the first audio playback circuit according to a volume adjustment instruction from another device other than the audio broadcasting device a volume level; wherein, the second control circuit is further configured to control the second audio processing according to the volume adjustment instruction after the second Bluetooth communication circuit receives the one or more low-power Bluetooth audio packets The circuit adjusts a volume of the second audio playback circuit.

上述實施例的優點之一，是在接收到音訊廣播裝置所廣播的低功耗藍牙音訊封包之後，第一藍牙成員裝置及第二藍牙成員裝置可依據另一裝置傳來的一音量調整指示，同步地調整相關音訊播放電路的音量大小。One of the advantages of the above embodiment is that after receiving the BLE audio packet broadcasted by the audio broadcasting device, the first Bluetooth member device and the second Bluetooth member device can adjust the volume according to a volume adjustment instruction from another device, Synchronously adjust the volume of the related audio playback circuit.

本發明的其他優點將搭配以下的說明和圖式進行更詳細的解說。Other advantages of the present invention will be explained in more detail in conjunction with the following description and drawings.

以下將配合相關圖式來說明本發明的實施例。在圖式中，相同的標號表示相同或類似的元件或方法流程。The embodiments of the present invention will be described below with reference to the relevant drawings. In the drawings, the same reference numbers refer to the same or similar elements or method flows.

圖1為本發明一第一實施例的藍牙音訊廣播系統100簡化後的功能方塊圖。藍牙音訊廣播系統100包含可接收音訊廣播的多個藍牙成員裝置（Bluetooth member device），以及用來廣播音訊資料的一音訊廣播裝置150。音訊廣播裝置150設置成可採用藍牙核心規格5.2版本或較新的版本所規範的低功耗藍牙音訊（Bluetooth LE Audio，BLE Audio）技術（以下簡稱BLE音訊技術），來廣播各種內容的音訊資料，例如，機場內的航班信息、火車站或高鐵站內的班次提醒通知、電影院內的劇情聲音、體育館內的語音信息、博物館內的導覽語音、展覽會場內的介紹語音、演講會場的語音翻譯、使用者選擇的音樂或語音資料、電視提供的多聲道音訊、教室內老師的上課內容、或是其他類型的音訊內容等等。FIG. 1 is a simplified functional block diagram of a Bluetooth audio broadcasting system 100 according to a first embodiment of the present invention. The Bluetooth audio broadcasting system 100 includes a plurality of Bluetooth member devices capable of receiving audio broadcasting, and an audio broadcasting device 150 for broadcasting audio data. The audio broadcasting device 150 is configured to adopt the low-power Bluetooth audio (Bluetooth LE Audio, BLE Audio) technology (hereinafter referred to as BLE audio technology) specified by the Bluetooth core specification version 5.2 or a newer version to broadcast audio data of various contents , for example, flight information in airports, shift reminder notifications in train stations or high-speed rail stations, story sounds in movie theaters, voice messages in stadiums, guide voices in museums, introduction voices in exhibition venues, voice translation in speech venues , music or voice data selected by the user, multi-channel audio provided by the TV, the content of the teacher's class in the classroom, or other types of audio content, etc.

藍牙音訊廣播系統100中的多個藍牙成員裝置都支援藍牙核心規格5.2版本或較新的版本所規範的BLE技術，並可接收並播放音訊廣播裝置150所廣播的音訊資料。實作上，藍牙音訊廣播系統100中可包含兩個或兩個以上的藍牙成員裝置。為了方便說明起見，在圖1的實施例中僅繪示四個示例性的藍牙成員裝置，分別是一第一藍牙成員裝置110、一第二藍牙成員裝置120、一第三藍牙成員裝置130、以及一第四藍牙成員裝置140。A plurality of Bluetooth member devices in the Bluetooth audio broadcasting system 100 support the BLE technology regulated by the Bluetooth Core Specification version 5.2 or a later version, and can receive and play audio data broadcast by the audio broadcasting device 150 . In practice, the Bluetooth audio broadcasting system 100 may include two or more Bluetooth member devices. For convenience of description, only four exemplary Bluetooth member devices are shown in the embodiment of FIG. 1 , which are a first Bluetooth member device 110 , a second Bluetooth member device 120 , and a third Bluetooth member device 130 respectively. , and a fourth Bluetooth member device 140 .

在實際應用中，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140，可共同組成一個多成員藍牙裝置，例如，一組多聲道藍牙喇叭。在此情況下，第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140可利用各種符合藍牙通信標準所規範的方式建立一藍牙微網（Bluetooth piconet），並可透過該藍牙微網進行各種指令或資料傳輸，或者，第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140可共同組成符合各種藍牙通信標準所規範的一協同組（coordinate set）。In practical applications, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , third Bluetooth member device 130 , and fourth Bluetooth member device 140 may together form a multi-member Bluetooth device, for example, a set of multi-member Bluetooth devices. Channel bluetooth speaker. In this case, the first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140 can establish a Bluetooth piconet ( Bluetooth piconet), and can perform various commands or data transmission through the Bluetooth piconet, or the first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140 can work together Forms a coordinate set that conforms to the specifications of various Bluetooth communication standards.

或者，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140，也可以分別屬於不同的多成員藍牙裝置。例如，前述的第一藍牙成員裝置110及第二藍牙成員裝置120可共同組成一第一多成員藍牙裝置（例如，一對藍牙耳機），而前述的第三藍牙成員裝置130及第四藍牙成員裝置140則可共同組成一第二多成員藍牙裝置（例如，另一對藍牙耳機）。在此情況下，第一藍牙成員裝置110及第二藍牙成員裝置120可利用各種符合藍牙通信標準所規範的方式建立一第一藍牙微網，並可透過該第一藍牙微網進行各種指令或資料傳輸。另一方面，第三藍牙成員裝置130及第四藍牙成員裝置140可利用各種符合藍牙通信標準所規範的方式建立一第二藍牙微網，並可透過該第二藍牙微網進行各種指令或資料傳輸。或者，第一藍牙成員裝置110及第二藍牙成員裝置120可共同組成符合各種藍牙通信標準所規範的一第一協同組，而第三藍牙成員裝置130及第四藍牙成員裝置140則可共同組成符合各種藍牙通信標準所規範的一第一協同組。Alternatively, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , third Bluetooth member device 130 , and fourth Bluetooth member device 140 may also belong to different multi-member Bluetooth devices, respectively. For example, the aforementioned first Bluetooth member device 110 and the second Bluetooth member device 120 may together form a first multi-member Bluetooth device (eg, a pair of Bluetooth headsets), and the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member The devices 140 can collectively form a second multi-member Bluetooth device (eg, another pair of Bluetooth headsets). In this case, the first bluetooth member device 110 and the second bluetooth member device 120 can establish a first bluetooth piconet in various ways compliant with the bluetooth communication standard, and can perform various commands or operations through the first bluetooth piconet Data transfer. On the other hand, the third bluetooth member device 130 and the fourth bluetooth member device 140 can establish a second bluetooth piconet in various ways compliant with the bluetooth communication standard, and can perform various commands or data through the second bluetooth piconet transmission. Alternatively, the first bluetooth member device 110 and the second bluetooth member device 120 may jointly form a first cooperation group conforming to the specifications of various Bluetooth communication standards, and the third bluetooth member device 130 and the fourth bluetooth member device 140 may jointly form Comply with a first cooperative group specified by various Bluetooth communication standards.

在圖1的實施例中，第一藍牙成員裝置110包含有一第一藍牙通信電路111、一第一音訊處理電路112、一第一音訊播放電路113、以及一第一控制電路114。相仿地，第二藍牙成員裝置120包含有一第二藍牙通信電路121、一第二音訊處理電路122、一第二音訊播放電路123、以及一第二控制電路124。In the embodiment of FIG. 1 , the first Bluetooth member device 110 includes a first Bluetooth communication circuit 111 , a first audio processing circuit 112 , a first audio playback circuit 113 , and a first control circuit 114 . Similarly, the second Bluetooth member device 120 includes a second Bluetooth communication circuit 121 , a second audio processing circuit 122 , a second audio playback circuit 123 , and a second control circuit 124 .

在第一藍牙成員裝置110中，第一藍牙通信電路111設置成可以藍牙通信方式接收音訊廣播裝置150採用BLE音訊技術所廣播的音訊資料。第一音訊處理電路112耦接於第一音訊播放電路113，並設置成可處理音訊廣播裝置150傳來的音訊資料（例如，對音訊資料進行編碼或解碼運作，和/或進行資料格式轉換），並可控制第一音訊播放電路113播放音訊資料。第一控制電路114耦接於第一藍牙通信電路111及第一音訊處理電路112，並設置成可解析第一藍牙通信電路111接收到的藍牙封包，以獲取相關的資料或指令，並可控制第一音訊處理電路112的運作。In the first Bluetooth member device 110, the first Bluetooth communication circuit 111 is configured to receive audio data broadcast by the audio broadcasting device 150 using the BLE audio technology in a Bluetooth communication manner. The first audio processing circuit 112 is coupled to the first audio playback circuit 113, and is configured to process the audio data transmitted from the audio broadcasting device 150 (eg, perform encoding or decoding operations on the audio data, and/or perform data format conversion) , and can control the first audio playback circuit 113 to play audio data. The first control circuit 114 is coupled to the first Bluetooth communication circuit 111 and the first audio processing circuit 112, and is configured to parse the Bluetooth packets received by the first Bluetooth communication circuit 111 to obtain relevant data or instructions, and to control the Operation of the first audio processing circuit 112 .

在某些實施例中，第一控制電路114還設置成可控制第一藍牙成員裝置110扮演一藍牙微網中的一藍牙主裝置（Bluetooth Central），並可調整第一藍牙成員裝置110所使用的時脈信號（clock signal），以同步第一藍牙成員裝置110與其他藍牙裝置之間所使用的微微網時脈（piconet clock）。In some embodiments, the first control circuit 114 is further configured to control the first Bluetooth member device 110 to act as a Bluetooth Central in a Bluetooth piconet, and to adjust the use of the first Bluetooth member device 110 The clock signal (clock signal) is used to synchronize the piconet clock used between the first Bluetooth member device 110 and other Bluetooth devices.

第一控制電路114可透過第一藍牙通信電路111與其他藍牙成員裝置進行通信。第一控制電路114還可利用第一音訊處理電路112處理音訊廣播裝置150傳來的音訊資料，並指示第一音訊處理電路112控制第一音訊播放電路113播放音訊資料。The first control circuit 114 can communicate with other Bluetooth member devices through the first Bluetooth communication circuit 111 . The first control circuit 114 can also use the first audio processing circuit 112 to process the audio data transmitted from the audio broadcasting device 150, and instruct the first audio processing circuit 112 to control the first audio playing circuit 113 to play the audio data.

在第二藍牙成員裝置120中，第二藍牙通信電路121設置成可以藍牙通信方式接收音訊廣播裝置150採用BLE音訊技術所廣播的音訊資料。第二音訊處理電路122耦接於第二音訊播放電路123，並設置成可處理音訊廣播裝置150傳來的音訊資料（例如，對音訊資料進行編碼或解碼運作，和/或進行資料格式轉換），並可控制第二音訊播放電路123播放音訊資料。第二控制電路124耦接於第二藍牙通信電路121及第二音訊處理電路122，並設置成可解析第二藍牙通信電路121接收到的藍牙封包，以獲取相關的資料或指令，並可控制第二音訊處理電路122的運作。此外，第二控制電路124還設置成可調整第二藍牙成員裝置120所使用的時脈信號，以同步第二藍牙成員裝置120與其他藍牙裝置之間所使用的微微網時脈。In the second Bluetooth member device 120, the second Bluetooth communication circuit 121 is configured to receive audio data broadcast by the audio broadcasting device 150 using the BLE audio technology in a Bluetooth communication manner. The second audio processing circuit 122 is coupled to the second audio playing circuit 123 and is configured to process the audio data transmitted from the audio broadcasting device 150 (eg, perform encoding or decoding operations on the audio data, and/or perform data format conversion) , and can control the second audio playback circuit 123 to play audio data. The second control circuit 124 is coupled to the second Bluetooth communication circuit 121 and the second audio processing circuit 122, and is configured to parse the Bluetooth packets received by the second Bluetooth communication circuit 121 to obtain relevant data or instructions, and to control Operation of the second audio processing circuit 122 . In addition, the second control circuit 124 is further configured to adjust the clock signal used by the second Bluetooth member device 120 to synchronize the piconet clock used between the second Bluetooth member device 120 and other Bluetooth devices.

在本實施例中，第二控制電路124還設置成可控制第二藍牙成員裝置120扮演前述藍牙微網中的一藍牙從裝置（Bluetooth Peripheral），並可調整第二藍牙成員裝置120所使用的時脈信號，以同步第二藍牙成員裝置120與第一藍牙成員裝置110之間所使用的微微網時脈。In this embodiment, the second control circuit 124 is further configured to control the second Bluetooth member device 120 to act as a Bluetooth Peripheral in the aforementioned Bluetooth micro-mesh, and to adjust the Bluetooth peripheral used by the second Bluetooth member device 120 The clock signal is used to synchronize the piconet clock used between the second Bluetooth member device 120 and the first Bluetooth member device 110 .

第二控制電路124可透過第二藍牙通信電路121與其他藍牙成員裝置進行通信。第二控制電路124還可利用第二音訊處理電路122處理音訊廣播裝置150傳來的音訊資料，並指示第二音訊處理電路122控制第二音訊播放電路123播放音訊資料。The second control circuit 124 can communicate with other Bluetooth member devices through the second Bluetooth communication circuit 121 . The second control circuit 124 can also use the second audio processing circuit 122 to process the audio data transmitted from the audio broadcasting device 150 and instruct the second audio processing circuit 122 to control the second audio playing circuit 123 to play the audio data.

實作上，前述的第一藍牙通信電路111及第二藍牙通信電路121，皆可用能夠支援藍牙核心規格5.2版本或較新的版本的藍牙通信協定的合適藍牙傳輸電路來實現。第一音訊處理電路112及第二音訊處理電路122，皆可用能夠對音訊資料號進行各種編解碼處理和/或資料格式轉換的數位運算電路、微處理器、特殊應用積體電路（Application Specific Integrated Circuit，ASIC）、或是數位至類比轉換電路（digital-to-analog converter，DAC）來實現。第一音訊播放電路113及第二音訊播放電路123，皆可用能夠接收播放音訊資料的各種合適電路來實現，例如，各種類型的喇叭。第一控制電路114及第二控制電路124，皆可用具有適當運算能力、能夠解析及產生藍牙封包的各種封包處理電路、數位運算電路、微處理器、或是特殊應用積體電路來實現。In practice, the aforementioned first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can be implemented by suitable Bluetooth transmission circuits capable of supporting Bluetooth core specification version 5.2 or a later version of the Bluetooth communication protocol. The first audio processing circuit 112 and the second audio processing circuit 122 can both use digital operation circuits, microprocessors, application specific integrated circuits (Application Specific Integrated Circuits) capable of performing various codec processing and/or data format conversion on audio data signals. Circuit, ASIC), or digital-to-analog converter (DAC) to achieve. Both the first audio playing circuit 113 and the second audio playing circuit 123 can be implemented by various suitable circuits capable of receiving and playing audio data, for example, various types of speakers. Both the first control circuit 114 and the second control circuit 124 can be implemented by various packet processing circuits, digital arithmetic circuits, microprocessors, or special application integrated circuits with appropriate computing capabilities capable of parsing and generating Bluetooth packets.

在某些實施例中，前述的第一藍牙通信電路111及第二藍牙通信電路121，也可以設計成同時支援更早以前的藍牙版本（例如，藍牙2.0、藍牙3.0、藍牙4.0、藍牙4.2等版本）的藍牙通信協定的合適藍牙傳輸電路來實現。在此情況下，前述的第一控制電路114及第二控制電路124也要設計成能夠解析及產生更早以前的藍牙版本的藍牙通信協定所定義的藍牙封包。In some embodiments, the aforementioned first Bluetooth communication circuit 111 and second Bluetooth communication circuit 121 can also be designed to support earlier Bluetooth versions (eg, Bluetooth 2.0, Bluetooth 3.0, Bluetooth 4.0, Bluetooth 4.2, etc.) version) of a suitable Bluetooth transmission circuit for the Bluetooth communication protocol. In this case, the aforementioned first control circuit 114 and second control circuit 124 are also designed to be able to parse and generate Bluetooth packets defined by the Bluetooth communication protocol of earlier Bluetooth versions.

另外，前述第一藍牙成員裝置110中的不同功能方塊可分別用不同的電路來實現，也可整合在一單一藍牙控制晶片（Bluetooth controller IC）或一單一穿戴式藍牙裝置（例如，藍牙耳機）中。另外，有需要的話，也可以將第一藍牙通信電路111耦接於額外的天線裝置（未繪示）。同樣地，前述第二藍牙成員裝置120中的不同功能方塊可分別用不同的電路來實現，也可整合在一單一藍牙控制晶片（Bluetooth controller IC）或一單一穿戴式藍牙裝置（例如，藍牙耳機）中。另外，有需要的話，也可以將第二藍牙通信電路121耦接於額外的天線裝置（未繪示）。In addition, the different functional blocks in the first Bluetooth member device 110 can be implemented by different circuits, and can also be integrated into a single Bluetooth controller IC or a single wearable Bluetooth device (eg, a Bluetooth headset). middle. In addition, if necessary, the first Bluetooth communication circuit 111 can also be coupled to an additional antenna device (not shown). Similarly, the different functional blocks in the second Bluetooth member device 120 can be implemented by different circuits, and can also be integrated into a single Bluetooth controller IC or a single wearable Bluetooth device (eg, a Bluetooth headset). )middle. In addition, if necessary, the second Bluetooth communication circuit 121 can also be coupled to an additional antenna device (not shown).

在某些實施例中，也可以將前述的第一音訊處理電路112及第二音訊處理電路122，分別整合到前述的第一控制電路114及第二控制電路124中。In some embodiments, the aforementioned first audio processing circuit 112 and the second audio processing circuit 122 can also be integrated into the aforementioned first control circuit 114 and the second control circuit 124, respectively.

換言之，前述的第一音訊處理電路112及第一控制電路114有可能用不同的電路來實現，也可能用同一個電路來實現。同樣地，前述的第二音訊處理電路122及第二控制電路124有可能用不同的電路來實現，也可能用同一個電路來實現。In other words, the aforementioned first audio processing circuit 112 and the first control circuit 114 may be implemented by different circuits, or may be implemented by the same circuit. Likewise, the aforementioned second audio processing circuit 122 and second control circuit 124 may be implemented by different circuits, or may be implemented by the same circuit.

藍牙音訊廣播系統100中的其他藍牙成員裝置的主要電路架構與實施方式，都類似於前述的第一藍牙成員裝置110或第二藍牙成員裝置120，但在不同的藍牙成員裝置中可以設置不同的額外電路元件，而不侷限所有藍牙成員裝置的電路結構都要完全相同。The main circuit structures and implementations of other Bluetooth member devices in the Bluetooth audio broadcasting system 100 are similar to the aforementioned first Bluetooth member device 110 or second Bluetooth member device 120, but different Bluetooth member devices can be set to different Additional circuit elements, but not limited to the circuit structure of all Bluetooth member devices should be identical.

如前所述，音訊廣播裝置150可採用藍牙核心規格5.2版本或較新的版本所規範的BLE音訊技術來廣播各種音訊資料。在運作時，音訊廣播裝置150可透過一廣播等時串流（Broadcast Isochronous Stream，BIS）邏輯傳輸通道（logical transport）（以下簡稱為BIS邏輯傳輸通道，BIS logical transport），來廣播包含音訊資料的一或多個低功耗藍牙音訊封包（Bluetooth LE audio packet）。As mentioned above, the audio broadcast device 150 can use the BLE audio technology specified by the Bluetooth Core Specification Version 5.2 or a newer version to broadcast various audio data. During operation, the audio broadcasting device 150 can broadcast a broadcast containing audio data through a Broadcast Isochronous Stream (BIS) logical transport (hereinafter referred to as BIS logical transport) One or more Bluetooth LE audio packets.

實作上，前述的音訊廣播裝置150可以用支援藍牙核心規格5.2版本或較新的版本的藍牙通信協定、且能夠利用BLE音訊技術來廣播音訊資料的各種合適電路或裝置來實現，例如，一音訊廣播系統、一語音導覽系統、一語音廣播系統、一桌上型電腦、一筆記型電腦、一平板電腦、一行動通信裝置（例如，手機）、一穿戴式裝置、一車載音訊系統、或一藍牙智慧音箱等等。In practice, the aforementioned audio broadcasting device 150 can be implemented by various suitable circuits or devices that support the Bluetooth communication protocol of the Bluetooth Core Specification version 5.2 or a later version, and can use the BLE audio technology to broadcast audio data, for example, a audio broadcasting system, an audio guide system, an audio broadcasting system, a desktop computer, a notebook computer, a tablet computer, a mobile communication device (eg, a mobile phone), a wearable device, a car audio system, Or a Bluetooth smart speaker, etc.

然而，藍牙核心規格5.2版本所推出的BLE音訊技術，並未規範音訊來源端在利用BIS邏輯傳輸通道進行音訊廣播的過程中，要如何調整音訊接收端的音量播放大小，而且也沒有要求音訊來源端必須調整音訊接收端的音量播放大小。因此，採用BLE音訊技術來進行音訊廣播時可能會衍生某些問題。例如，無法預期音量大小的音訊廣播有可能造成某些使用者感到不適或不悅，甚至某些使用者可能會因為接收到突如其來且音量過大的音訊廣播而受到驚嚇。However, the BLE audio technology introduced in version 5.2 of the Bluetooth core specification does not regulate how the audio source should adjust the volume playback volume of the audio receiver during the process of using the BIS logical transmission channel for audio broadcasting, and there is no requirement for the audio source. The volume playback level of the audio receiver must be adjusted. Therefore, certain problems may arise when using BLE audio technology for audio broadcasting. For example, unpredictable audio broadcasts may cause some users to feel uncomfortable or unhappy, and some users may even be startled when they receive a sudden audio broadcast at an excessively loud volume.

為了解決藍牙核心規格5.2版本既有的BLE音訊技術在音訊廣播應用上的盲點，前揭的藍牙音訊廣播系統100會採用特殊的機制來進行音訊資料的廣播運作。In order to solve the blind spot of the existing BLE audio technology in the Bluetooth core specification version 5.2 in the audio broadcasting application, the previously disclosed Bluetooth audio broadcasting system 100 adopts a special mechanism to broadcast the audio data.

以下將搭配圖2來進一步說明藍牙音訊廣播系統100的運作方式。圖2為本發明一第一實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。The operation of the Bluetooth audio broadcasting system 100 will be further described below with reference to FIG. 2 . FIG. 2 is a simplified flowchart of a method for performing audio broadcasting using the BLE audio technology according to a first embodiment of the present invention.

在圖2的流程圖中，位於一特定裝置所屬欄位中的流程，即代表由該特定裝置所進行的流程。例如，標記在「音訊廣播裝置」欄位中的部分，是由音訊廣播裝置150所進行的流程；標記在「第一藍牙成員裝置」欄位中的部分，是由第一藍牙成員裝置110所進行的流程；標記在「第二藍牙成員裝置」欄位中的部分，是由第二藍牙成員裝置120所進行的流程；前述的邏輯也適用於後續的其他流程圖中。In the flowchart of FIG. 2 , the process in the column to which a specific device belongs represents the process performed by the specific device. For example, the part marked in the "audio broadcast device" field is the process performed by the audio broadcast device 150; the part marked in the "first bluetooth member device" field is the process performed by the first bluetooth member device 110 The process performed; the part marked in the "second Bluetooth member device" column is the process performed by the second Bluetooth member device 120; the aforementioned logic is also applicable to other subsequent flowcharts.

當使用者想要利用第一藍牙成員裝置110與第二藍牙成員裝置120接收音訊廣播時，第一藍牙成員裝置110可進行圖2中的流程202，而第二藍牙成員裝置120則可進行圖2中的流程204。When the user wants to use the first Bluetooth member device 110 and the second Bluetooth member device 120 to receive audio broadcasts, the first Bluetooth member device 110 can perform the process 202 in FIG. 2 , and the second Bluetooth member device 120 can perform the process Process 204 in 2.

在流程202中，第一控制電路114可控制第一藍牙通信電路111進入一預定接收模式。In the process 202, the first control circuit 114 can control the first Bluetooth communication circuit 111 to enter a predetermined receiving mode.

在流程204中，第二控制電路124可控制第二藍牙通信電路121進入前述的預定接收模式。In the process 204, the second control circuit 124 may control the second Bluetooth communication circuit 121 to enter the aforementioned predetermined reception mode.

前述的預定接收模式指的是可用來接收各種藍牙廣告封包、各種廣播等時串流協定資料單元（protocol data unit，PDU）（以下簡稱為BIS協定資料單元，BIS PDU）、和/或各種廣播等時群組（Broadcast Isochronous Group，BIG）協定資料單元（以下簡稱為BIG協定資料單元，BIG PDU）的各種操作模式。The aforementioned predetermined reception mode refers to a streaming protocol data unit (PDU) (hereinafter referred to as BIS protocol data unit, BIS PDU) that can be used to receive various Bluetooth advertising packets, various broadcasts, etc., and/or various broadcasts Various operation modes of a Broadcast Isochronous Group (BIG) protocol data unit (hereinafter referred to as a BIG protocol data unit, BIG PDU).

例如，前述的預定接收模式可以是可用來接收各種來藍牙廣告封包的一低功耗拓展被動掃描（LE Extended Passive Scan）模式、一低功耗拓展主動掃描（LE Extended Active Scan）模式、一低功耗拓展發起者（LE Extended Initiator）模式、或一周期性掃描（Periodic Scanning）模式。又例如，前述的預定接收模式可以是可透過BIS邏輯傳輸通道來接收各種協定資料單元、和/或可透過廣播等時群組邏輯傳輸通道（以下簡稱為BIG邏輯傳輸通道，BIG logical transport）來接收各種協定資料單元的操作模式，例如，一週期同步（Periodic Synchronization）模式、或一廣播等時群組同步（BIG Synchronization）模式等等。或者，前述的預定接收模式也可以是前述的各種操作模式的搭配組合。For example, the aforementioned predetermined receiving mode may be a low-power extended passive scan (LE Extended Passive Scan) mode, a low-power extended active scan (LE Extended Active Scan) mode, a low power extended active scan (LE Extended Active Scan) mode, and a Power Extended Initiator (LE Extended Initiator) mode, or a Periodic Scanning (Periodic Scanning) mode. For another example, the aforementioned predetermined receiving mode may be that various protocol data units can be received through a BIS logical transport channel, and/or can be received through a broadcast isochronous group logical transport channel (hereinafter referred to as BIG logical transport channel, BIG logical transport). Operation modes for receiving various protocol data units, for example, a Periodic Synchronization mode, or a Broadcast Isochronous Group Synchronization (BIG Synchronization) mode, and so on. Alternatively, the aforementioned predetermined reception mode may also be a combination of the aforementioned various operation modes.

如圖2所示，當音訊廣播裝置150需要進行音訊廣播時，音訊廣播裝置150可進行圖2中的流程206。As shown in FIG. 2 , when the audio broadcasting apparatus 150 needs to perform audio broadcasting, the audio broadcasting apparatus 150 may perform the process 206 in FIG. 2 .

在流程206中，音訊廣播裝置150可進入一預定傳送模式。前述的預定傳送模式指的是可用來傳送各種藍牙廣告封包、各種BIS協定資料單元、和/或各種BIG協定資料單元的各種操作模式。In process 206, the audio broadcast device 150 may enter a predetermined transmission mode. The aforementioned predetermined transmission modes refer to various operation modes that can be used to transmit various Bluetooth advertisement packets, various BIS protocol data units, and/or various BIG protocol data units.

例如，前述的預定傳送模式可以是一廣告模式（Advertising mode）、一可掃描模式（Scannable mode）、一可連線模式（Connectable mode）、一不可連線模式（Non-connectable mode）、一不可掃描模式（Non-scannable mode）、一周期性廣告模式（Periodic Advertising mode）、一低功耗拓展廣告模式（LE Extended Advertising mode）、或一低功耗周期性廣告模式（LE Periodic Advertising mode）。又例如，前述的預定傳送模式可以是可透過BIS邏輯傳輸通道來傳送各種BIS協定資料單元、和/或可透過BIG邏輯傳輸通道來傳送各種BIG協定資料單元的一等時廣播模式（Broadcast Isochronous Broadcasting mode）、或一廣播等時同步性模式（Broadcast Isochronous Synchronization mode）。或者，前述的預定傳送模式也可以是前述的各種操作模式的搭配組合。For example, the aforementioned predetermined transmission mode may be an advertising mode (Advertising mode), a scannable mode (Scannable mode), a connectable mode (Connectable mode), a non-connectable mode (Non-connectable mode), a non-connectable mode Non-scannable mode, a Periodic Advertising mode, a LE Extended Advertising mode, or a LE Periodic Advertising mode. For another example, the aforementioned predetermined transmission mode may be an isochronous broadcast mode (Broadcast Isochronous Broadcasting) in which various BIS protocol data units can be transmitted through the BIS logical transmission channel, and/or various BIG protocol data units can be transmitted through the BIG logical transmission channel. mode), or a Broadcast Isochronous Synchronization mode. Alternatively, the aforementioned predetermined transmission mode may also be a combination of the aforementioned various operation modes.

在流程208中，音訊廣播裝置150可將與一預定音量大小（predetermined volume）相對應的一預定音量指示，***一或多個預定資料項目中。音訊廣播裝置150可將前述的預定音量大小，設置成對大多數人而言是舒適而不會覺得過大的音量（例如，45~60分貝左右），並可用各種合適的資料格式、索引值、或數值來表達前述的預定音量大小。在運作時，音訊廣播裝置150可將預定音量指示***單一個預定資料項目的單一或多個特定欄位中，或是分散***多個預定資料項目的特定欄位中。在某些實施例中，除了預定音量指示之外，音訊廣播裝置150還可將音訊廣播裝置150的一藍牙位址、和/或音訊廣播裝置150即將開始進行音訊廣播的一指示信息，也共同***前述的單一個預定資料項目的單一或多個特定欄位中，或是分散***多個預定資料項目的特定欄位中。In process 208 , the audio broadcast device 150 may insert a predetermined volume indication corresponding to a predetermined volume into one or more predetermined data items. The audio broadcasting device 150 can set the aforementioned predetermined volume to a volume that is comfortable for most people without being too loud (for example, about 45-60 decibels), and can use various suitable data formats, index values, or a numerical value to express the aforementioned predetermined volume. During operation, the audio broadcast apparatus 150 can insert the predetermined volume indication into one or more specific fields of a single predetermined data item, or insert it into specific fields of a plurality of predetermined data items dispersedly. In some embodiments, in addition to the predetermined volume indication, the audio broadcasting device 150 may also combine a Bluetooth address of the audio broadcasting device 150 and/or an indication that the audio broadcasting device 150 is about to start audio broadcasting. Inserted into a single or multiple specific fields of the aforementioned single predetermined data item, or scattered into specific fields of a plurality of predetermined data items.

例如，在前述的預定資料項目是各種藍牙廣告封包的某些實施例中，音訊廣播裝置150可將前述的預定音量指示、音訊廣播裝置150的藍牙位址、和/或指示信息，***單一個藍牙廣告封包的單一或多個特定欄位中，或是分散***多個藍牙廣告封包的特定欄位中。For example, in some embodiments in which the aforementioned predetermined data items are various Bluetooth advertisement packets, the audio broadcasting device 150 may insert the aforementioned predetermined volume indication, the Bluetooth address of the audio broadcasting device 150, and/or the instruction information into a single In a single or multiple specific fields of the Bluetooth advertisement packet, or scatteredly inserted into the specific fields of multiple Bluetooth advertisement packets.

又例如，在前述的預定資料項目是各種BIS協定資料單元或BIG協定資料單元的某些實施例中，音訊廣播裝置150可將前述的預定音量指示、音訊廣播裝置150的藍牙位址、和/或指示信息，***單一個BIS協定資料單元或BIG協定資料單元的單一或多個特定欄位中，或是分散***多個BIS協定資料單元或BIG協定資料單元的特定欄位中。實作上，前述的特定欄位可以是BIS協定資料單元或BIG協定資料單元中的事件計數（Event Counter）欄位、子事件計數（Sub-Event Counter）欄位、或負載計數（Payload Counter）欄位等等。For another example, in some embodiments in which the aforementioned predetermined data items are various BIS protocol data units or BIG protocol data units, the audio broadcasting device 150 may send the aforementioned predetermined volume indication, the Bluetooth address of the audio broadcasting device 150, and/or Or the instruction information is inserted into a single BIS protocol data unit or a single or multiple specific fields of the BIG protocol data unit, or scattered into multiple BIS protocol data units or specific fields of the BIG protocol data unit. In practice, the aforementioned specific field may be an Event Counter field, a Sub-Event Counter field, or a Payload Counter field in the BIS protocol data unit or the BIG protocol data unit. fields, etc.

在流程210中，音訊廣播裝置150可在預定傳送模式下，將前述的一或多個預定資料項目傳送出去，以使得在音訊廣播裝置150的藍牙信號傳輸範圍內的第一藍牙成員裝置110及第二藍牙成員裝置120、以及其他藍牙裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140），能夠接收到前述的一或多個預定資料項目。In the process 210 , the audio broadcasting device 150 may transmit the aforementioned one or more predetermined data items in a predetermined transmission mode, so that the first Bluetooth member device 110 within the Bluetooth signal transmission range of the audio broadcasting device 150 and the The second Bluetooth member device 120 and other Bluetooth devices (eg, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140 ) can receive the aforementioned one or more predetermined data items.

例如，在前述的預定傳送模式是可掃描模式、可連線模式、不可連線模式、或不可掃描模式的某些實施例中，前述流程208與流程210中所指稱的一或多個預定資料項目，可以是一或多個輔助廣告指示（auxiliary advertising indication，AUX_ADV_IND）封包。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個廣告拓展指示（extended advertising indication，ADV_EXT_IND）封包、與一或多個輔助廣告指示（AUX_ADV_IND）封包所形成的一組封包。For example, in some embodiments in which the aforementioned predetermined transmission mode is a scannable mode, a connectable mode, a non-connectable mode, or a non-scannable mode, the one or more predetermined data referred to in the aforementioned process 208 and process 210 The item may be one or more auxiliary advertising indication (auxiliary advertising indication, AUX_ADV_IND) packets. Alternatively, the one or more predetermined data items referred to in the foregoing process 208 and process 210 may also be one or more extended advertising indication (ADV_EXT_IND) packets and one or more auxiliary advertising indications (AUX_ADV_IND) A set of packets formed by packets.

在此情況下，倘若前述的預定接收模式是低功耗拓展被動掃描模式、低功耗拓展主動掃描模式、或是低功耗拓展發起者模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212，以接收音訊廣播裝置150傳來的一或多個預定資料項目。In this case, if the aforementioned predetermined receiving mode is the low-power extended passive scanning mode, the low-power extended active scanning mode, or the low-power extended initiator mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication The circuit 121 may perform the process 212 to receive one or more predetermined data items from the audio broadcasting device 150 .

又例如，在前述的預定傳送模式是不可連線模式、或不可掃描模式的某些實施例中，前述流程208與流程210中所指稱的一或多個預定資料項目，可以是一或多個輔助鏈接指示（auxiliary chain indication，AUX_CHAIN_IND）封包。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個廣告拓展指示（ADV_EXT_IND）封包、一或多個輔助廣告指示（AUX_ADV_IND）封包、與一或多個輔助鏈接指示（AUX_CHAIN_IND）封包所形成的一組封包。For another example, in some embodiments in which the aforementioned predetermined transmission mode is a non-connectable mode or a non-scannable mode, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may be one or more Auxiliary chain indication (AUX_CHAIN_IND) packet. Alternatively, the one or more predetermined data items referred to in the foregoing process 208 and process 210 may also be one or more advertisement extension indication (ADV_EXT_IND) packets, one or more auxiliary advertisement indication (AUX_ADV_IND) packets, and one or more A set of packets formed by multiple AUX_CHAIN_IND packets.

在此情況下，倘若前述的預定接收模式是低功耗拓展被動掃描模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212，以接收音訊廣播裝置150傳來的一或多個預定資料項目。In this case, if the aforementioned predetermined receiving mode is the low-power extended passive scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 may perform the process 212 to receive an or Multiple scheduled profile items.

又例如，在前述的預定傳送模式是可掃描模式的某些實施例中，前述流程208與流程210中所指稱的一或多個預定資料項目，可以是一或多個輔助掃描回應（auxiliary scan response，AUX_SCAN_RSP）封包。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個廣告拓展指示（ADV_EXT_IND）封包、一或多個輔助廣告指示（AUX_ADV_IND）封包、與一或多個輔助掃描回應（AUX_SCAN_RSP）封包所形成的一組封包。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個輔助掃描回應（AUX_SCAN_RSP）封包、與一或多個輔助鏈接指示（AUX_CHAIN_IND）封包所形成的一組封包。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個廣告拓展指示（ADV_EXT_IND）封包、一或多個輔助廣告指示（AUX_ADV_IND）封包、一或多個輔助掃描回應（AUX_SCAN_RSP）封包、與一或多個輔助鏈接指示（AUX_CHAIN_IND）封包所形成的一組封包。For another example, in some embodiments in which the aforementioned predetermined transmission mode is a scannable mode, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may be one or more auxiliary scan responses (auxiliary scan responses). response, AUX_SCAN_RSP) packet. Alternatively, the one or more predetermined data items referred to in the foregoing process 208 and process 210 may also be one or more advertisement extension indication (ADV_EXT_IND) packets, one or more auxiliary advertisement indication (AUX_ADV_IND) packets, and one or more A group of packets formed by multiple auxiliary scan response (AUX_SCAN_RSP) packets. Alternatively, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may also be formed by one or more auxiliary scan response (AUX_SCAN_RSP) packets and one or more auxiliary link indication (AUX_CHAIN_IND) packets. A set of packets. Alternatively, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may also be one or more advertisement extension indication (ADV_EXT_IND) packets, one or more auxiliary advertisement indication (AUX_ADV_IND) packets, one or more A group of packets formed by an auxiliary scan response (AUX_SCAN_RSP) packet and one or more auxiliary link indication (AUX_CHAIN_IND) packets.

在此情況下，倘若前述的預定接收模式是低功耗拓展主動掃描模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212，以接收音訊廣播裝置150傳來的一或多個預定資料項目。In this case, if the aforementioned predetermined receiving mode is the low-power extended active scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 may perform the process 212 to receive an or Multiple scheduled profile items.

又例如，在前述的預定傳送模式是不可連線模式、不可掃描模式、周期性廣告模式、低功耗拓展廣告模式、或低功耗周期性廣告模式的某些實施例中，前述流程208與流程210中所指稱的一或多個預定資料項目，可以是一或多個輔助同步指示（auxiliary synchronous indication，AUX_SYNC_IND）封包。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個廣告拓展指示（ADV_EXT_IND）封包、一或多個輔助廣告指示（AUX_ADV_IND）封包、與一或多個輔助同步指示（AUX_SYNC_IND）封包所形成的一組封包。For another example, in some embodiments in which the aforementioned predetermined transmission mode is the unconnectable mode, the unscannable mode, the periodic advertisement mode, the low power consumption extended advertisement mode, or the low power consumption periodic advertisement mode, the aforementioned process 208 and The one or more predetermined data items referred to in the process 210 may be one or more auxiliary synchronous indication (AUX_SYNC_IND) packets. Alternatively, the one or more predetermined data items referred to in the foregoing process 208 and process 210 may also be one or more advertisement extension indication (ADV_EXT_IND) packets, one or more auxiliary advertisement indication (AUX_ADV_IND) packets, and one or more A set of packets formed by multiple Auxiliary Sync Indication (AUX_SYNC_IND) packets.

在此情況下，倘若前述的預定接收模式是周期性掃描模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212，以接收音訊廣播裝置150傳來的一或多個預定資料項目。In this case, if the aforementioned predetermined receiving mode is the periodic scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 may perform the process 212 to receive one or more predetermined transmissions from the audio broadcasting device 150 data item.

又例如，在前述的預定傳送模式是藍牙4.0版本的藍牙通信協定所規範的廣告模式的某些實施例中，前述流程208與流程210中所指稱的一或多個預定資料項目，可以是一或多個廣告指示（advertising indication，ADV_IND）封包、一或多個不可連接廣告指示（non-connectable advertising indication，ADV_NONCONN_IND）封包、或是一或多個可查廣告指示（discoverable advertisement indication，ADV_DISCOVER_IND）封包。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個廣告指示（ADV_IND）封包、與一或多個不可連接廣告指示（ADV_NONCONN_IND）封包所形成的一組封包。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個廣告指示（ADV_IND）封包、與一或多個可查廣告指示（ADV_DISCOVER_IND）封包所形成的一組封包。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個廣告指示（ADV_IND）封包、與一或多個不可連接廣告指示（ADV_NONCONN_IND）封包、與一或多個可查廣告指示（ADV_DISCOVER_IND）封包所形成的一組封包。For another example, in some embodiments in which the aforementioned predetermined transmission mode is an advertisement mode regulated by the Bluetooth communication protocol of the Bluetooth 4.0 version, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may be a or more advertising indication (ADV_IND) packets, one or more non-connectable advertising indication (ADV_NONCONN_IND) packets, or one or more discoverable advertisement indication (ADV_DISCOVER_IND) packets . Alternatively, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may also be formed by one or more advertisement indication (ADV_IND) packets and one or more non-connectable advertisement indication (ADV_NONCONN_IND) packets. A set of packets. Alternatively, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may also be formed by one or more advertisement indication (ADV_IND) packets and one or more advertisement indication (ADV_DISCOVER_IND) packets. A set of packets. Alternatively, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may also be one or more advertisement indication (ADV_IND) packets, one or more non-connectable advertisement indication (ADV_NONCONN_IND) packets, and a or a group of packets formed by multiple advisable advertisement indication (ADV_DISCOVER_IND) packets.

在此情況下，倘若前述的預定接收模式是可以接收前述預定資料項目的模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212，以接收音訊廣播裝置150傳來的一或多個預定資料項目。In this case, if the aforementioned predetermined receiving mode is a mode capable of receiving the aforementioned predetermined data item, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 may perform the process 212 to receive a message from the audio broadcasting device 150 . or more predetermined data items.

又例如，在前述的預定傳送模式是等時廣播模式、或廣播等時同步性模式的某些實施例中，前述流程208與流程210中所指稱的一或多個預定資料項目，可以是一或多個BIS協定資料單元。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個BIG協定資料單元。或者，前述流程208與流程210中所指稱的一或多個預定資料項目，也可以是一或多個BIS協定資料單元、與一或多個BIG協定資料單元所形成的一組協定資料單元。For another example, in some embodiments in which the aforementioned predetermined transmission mode is an isochronous broadcast mode or a broadcast isochronous mode, the one or more predetermined data items referred to in the aforementioned processes 208 and 210 may be a or more BIS protocol data units. Alternatively, the one or more predetermined data items referred to in the aforementioned process 208 and process 210 may also be one or more BIG protocol data units. Alternatively, the one or more predetermined data items referred to in the foregoing process 208 and process 210 may also be one or more BIS protocol data units or a group of protocol data units formed by one or more BIG protocol data units.

在此情況下，倘若前述的預定接收模式是可透過BIS邏輯傳輸通道來接收各種協定資料單元、和/或可透過BIG邏輯傳輸通道來接收各種協定資料單元的操作模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程212，以接收音訊廣播裝置150傳來的一或多個預定資料項目。In this case, if the aforementioned predetermined receiving mode is an operation mode that can receive various protocol data units through the BIS logical transmission channel, and/or can receive various protocol data units through the BIG logical transmission channel, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 212 to receive one or more predetermined data items transmitted from the audio broadcasting device 150 .

接下來，第一藍牙成員裝置110會進行流程214及流程216，而第二藍牙成員裝置120則會進行流程218及流程220。Next, the first Bluetooth member device 110 will perform the process 214 and the process 216 , and the second Bluetooth member device 120 will perform the process 218 and the process 220 .

在流程214中，第一控制電路114可解析第一藍牙通信電路111所接收到的一或多個預定資料項目，以擷取出與一預定音量大小相對應的一預定音量指示。在某些實施例中，第一控制電路114還可從第一藍牙通信電路111所接收到的一或多個預定資料項目中，擷取出音訊廣播裝置150的一藍牙位址、和/或音訊廣播裝置150即將開始進行音訊廣播的一指示信息。In the process 214, the first control circuit 114 may parse one or more predetermined data items received by the first Bluetooth communication circuit 111 to extract a predetermined volume indication corresponding to a predetermined volume level. In some embodiments, the first control circuit 114 can also retrieve a Bluetooth address and/or audio information of the audio broadcasting device 150 from one or more predetermined data items received by the first Bluetooth communication circuit 111 An indication message that the broadcasting apparatus 150 is about to start broadcasting audio.

在流程216中，第一控制電路114可依據預定音量指示，控制第一音訊處理電路112預先設置第一音訊播放電路113的一音量大小。在運作時，第一控制電路114可依據預定音量指示，控制第一音訊處理電路112預先設置第一音訊播放電路113的增益值，以設置第一音訊播放電路113的音量大小。In the process 216 , the first control circuit 114 can control the first audio processing circuit 112 to preset a volume level of the first audio playback circuit 113 according to the predetermined volume indication. During operation, the first control circuit 114 can control the first audio processing circuit 112 to preset the gain value of the first audio playback circuit 113 according to the predetermined volume instruction to set the volume of the first audio playback circuit 113 .

在流程218中，第二控制電路124可解析第二藍牙通信電路121所接收到的一或多個預定資料項目，以擷取出與一預定音量大小相對應的一預定音量指示。在某些實施例中，第二控制電路124還可從第二藍牙通信電路121所接收到的一或多個預定資料項目中，擷取出音訊廣播裝置150的一藍牙位址、和/或音訊廣播裝置150即將開始進行音訊廣播的一指示信息。In the process 218, the second control circuit 124 may parse one or more predetermined data items received by the second Bluetooth communication circuit 121 to extract a predetermined volume indication corresponding to a predetermined volume level. In some embodiments, the second control circuit 124 can also retrieve a Bluetooth address and/or audio information of the audio broadcasting device 150 from one or more predetermined data items received by the second Bluetooth communication circuit 121 An indication message that the broadcasting apparatus 150 is about to start broadcasting audio.

在流程220中，第二控制電路124可依據預定音量指示，控制第二音訊處理電路122預先設置第二音訊播放電路123的一音量大小。在運作時，第二控制電路124可依據預定音量指示，控制第二音訊處理電路122預先設置第二音訊播放電路123的增益值，以設置第二音訊播放電路123的音量大小。In the process 220, the second control circuit 124 may control the second audio processing circuit 122 to preset a volume level of the second audio playback circuit 123 according to the predetermined volume indication. During operation, the second control circuit 124 can control the second audio processing circuit 122 to preset the gain value of the second audio playback circuit 123 according to the predetermined volume instruction to set the volume of the second audio playback circuit 123 .

第一藍牙成員裝置110及第二藍牙成員裝置120所接收到的預定音量指示，會對應於音訊廣播裝置150所設定的一預定音量大小。如前所述，前述的預定音量大小對大多數人而言是舒適而不會覺得過大的音量，例如，45~60分貝左右。The predetermined volume indications received by the first Bluetooth member device 110 and the second Bluetooth member device 120 correspond to a predetermined volume level set by the audio broadcasting device 150 . As mentioned above, the aforementioned predetermined volume is a volume that is comfortable for most people and does not feel too loud, for example, about 45-60 decibels.

在前述的流程216中，第一控制電路114可依據預定音量指示，控制第一音訊處理電路112設置第一音訊播放電路113的增益值，以將第一音訊播放電路113的音量大小，預先調整成接近或等於前述的預定音量大小。In the aforementioned process 216 , the first control circuit 114 can control the first audio processing circuit 112 to set the gain value of the first audio playback circuit 113 according to the predetermined volume indication, so as to pre-adjust the volume of the first audio playback circuit 113 to be close to or equal to the aforementioned predetermined volume level.

同樣地，在前述的流程220中，第二控制電路124可依據預定音量指示，控制第二音訊處理電路122設置第二音訊播放電路123的增益值，以將第二音訊播放電路123的音量大小，預先調整成接近或等於前述的預定音量大小。Similarly, in the aforementioned process 220 , the second control circuit 124 can control the second audio processing circuit 122 to set the gain value of the second audio playback circuit 123 according to the predetermined volume indication, so as to adjust the volume of the second audio playback circuit 123 , pre-adjusted to be close to or equal to the aforementioned predetermined volume.

換言之，在本實施例中，第一藍牙成員裝置110及第二藍牙成員裝置120在播放音訊廣播裝置150傳來的音訊資料之前，就會先依據音訊廣播裝置150傳來的預定音量指示，分別將第一音訊播放電路113及第二音訊播放電路123的音量大小，調整成接近或等於前述的預定音量大小。In other words, in this embodiment, before the first Bluetooth member device 110 and the second Bluetooth member device 120 play the audio data transmitted from the audio broadcast device 150 , respectively, according to the predetermined volume instruction transmitted from the audio broadcast device 150 , respectively. The volume levels of the first audio playback circuit 113 and the second audio playback circuit 123 are adjusted to be close to or equal to the aforementioned predetermined volume levels.

在流程222中，音訊廣播裝置150可產生包含一預定音訊資料的一或多個低功耗藍牙音訊封包（Bluetooth LE audio packet）。在運作時，音訊廣播裝置150可採用低複雜度通信編解碼器（Low Complexity Communication Codec，LC3）對預定音訊資料進行編碼，並將編碼後的資料***一或多個低功耗藍牙音訊封包中。實作上，音訊廣播裝置150也可採用其他合適的編碼方式對預定音訊資料進行編碼。In process 222, the audio broadcast device 150 may generate one or more Bluetooth LE audio packets including a predetermined audio data. During operation, the audio broadcasting device 150 may use a low complexity communication codec (LC3) to encode predetermined audio data, and insert the encoded data into one or more low energy Bluetooth audio packets . In practice, the audio broadcasting apparatus 150 may also use other suitable encoding methods to encode the predetermined audio data.

在流程224中，音訊廣播裝置150可透過一或多個BIS邏輯傳輸通道，來廣播包含前述的預定音訊資料的一或多個低功耗藍牙音訊封包。在運作時，音訊廣播裝置150可根據BLE音訊技術所規範的方式進行運作，以向其他藍牙成員裝置廣播包含預定音訊資料的低功耗藍牙音訊封包。In the process 224 , the audio broadcast device 150 may broadcast one or more BLE audio packets including the aforementioned predetermined audio data through one or more BIS logical transmission channels. In operation, the audio broadcast device 150 may operate in a manner specified by the BLE audio technology to broadcast Bluetooth low energy audio packets containing predetermined audio data to other Bluetooth member devices.

在流程226中，第一藍牙成員裝置110的第一藍牙通信電路111會透過前述的一或多個BIS邏輯傳輸通道，接收音訊廣播裝置150發送的一或多個低功耗藍牙音訊封包，而第二藍牙成員裝置120的第二藍牙通信電路121也會透過前述的一或多個BIS邏輯傳輸通道，接收音訊廣播裝置150發送的一或多個低功耗藍牙音訊封包。In the process 226, the first Bluetooth communication circuit 111 of the first Bluetooth member device 110 receives one or more low-power Bluetooth audio packets sent by the audio broadcasting device 150 through the aforementioned one or more BIS logical transmission channels, and The second Bluetooth communication circuit 121 of the second Bluetooth member device 120 also receives one or more low-power Bluetooth audio packets sent by the audio broadcasting device 150 through the aforementioned one or more BIS logical transmission channels.

接下來，第一藍牙成員裝置110會進行流程228及流程230，而第二藍牙成員裝置120則會進行流程232及流程234。Next, the first Bluetooth member device 110 will perform the process 228 and the process 230 , and the second Bluetooth member device 120 will perform the process 232 and the process 234 .

在流程228中，第一控制電路114可解析第一藍牙通信電路111所接收到的一或多個低功耗藍牙音訊封包，以擷取出音訊廣播裝置150所產生的預定音訊資料。In the process 228 , the first control circuit 114 may parse one or more BLE audio packets received by the first Bluetooth communication circuit 111 to extract predetermined audio data generated by the audio broadcasting device 150 .

在流程230中，第一控制電路114可指示第一音訊處理電路112控制第一音訊播放電路113播放預定音訊資料。In the process 230, the first control circuit 114 may instruct the first audio processing circuit 112 to control the first audio playback circuit 113 to play predetermined audio data.

在流程232中，第二控制電路124可解析第二藍牙通信電路121所接收到的一或多個低功耗藍牙音訊封包，以擷取出音訊廣播裝置150所產生的預定音訊資料。In the process 232 , the second control circuit 124 may parse one or more BLE audio packets received by the second Bluetooth communication circuit 121 to extract predetermined audio data generated by the audio broadcasting device 150 .

在流程234中，第二控制電路124可指示第二音訊處理電路122控制第二音訊播放電路123播放預定音訊資料。In the process 234, the second control circuit 124 may instruct the second audio processing circuit 122 to control the second audio playing circuit 123 to play predetermined audio data.

由於第一藍牙成員裝置110及第二藍牙成員裝置120都是透過BIS邏輯傳輸通道來接收音訊廣播裝置150發送的低功耗藍牙音訊封包，所以當第一音訊播放電路113播放預定音訊資料時，第二音訊播放電路123也會同步播放預定音訊資料。換言之，流程230與流程234會同時進行。Since the first Bluetooth member device 110 and the second Bluetooth member device 120 both receive the low-power Bluetooth audio packets sent by the audio broadcasting device 150 through the BIS logical transmission channel, when the first audio playback circuit 113 plays the predetermined audio data, The second audio playing circuit 123 also plays the predetermined audio data synchronously. In other words, the process 230 and the process 234 are performed simultaneously.

音訊廣播裝置150可重複進行流程222及流程224以廣播後續的預定音訊資料。另一方面，第一藍牙成員裝置110可重複進行流程226、流程228、及流程230以接收及播放後續的預定音訊資料，而第一藍牙成員裝置110則可重複進行流程226、流程232、及流程234以接收及播放後續的預定音訊資料。The audio broadcasting apparatus 150 may repeat the process 222 and the process 224 to broadcast subsequent predetermined audio data. On the other hand, the first Bluetooth member device 110 may repeat the process 226 , the process 228 , and the process 230 to receive and play the subsequent predetermined audio data, and the first Bluetooth member device 110 may repeat the process 226 , the process 232 , and Process 234 to receive and play subsequent predetermined audio data.

同樣地，藍牙音訊廣播系統100中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140），可以比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的運作方式，接收音訊廣播裝置150所廣播的低功耗藍牙音訊封包，並播放低功耗藍牙音訊封包中的預定音訊資料。Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 100 (eg, the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140 ) can be compared to the aforementioned first Bluetooth member device 110 or second Bluetooth member device The operation mode of 120 is to receive the low energy bluetooth audio packet broadcast by the audio broadcast device 150, and play the predetermined audio data in the low energy bluetooth audio packet.

由前述圖1至圖2的說明可知，在開始播放音訊廣播裝置150傳來的預定音訊資料之前，第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示，分別將第一音訊播放電路113及第二音訊播放電路123的音量大小，調整成接近或等於前述的預定音量大小。1 to 2, before starting to play the predetermined audio data from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member device 120 will first listen to the audio data transmitted by the audio broadcasting device 150. The predetermined volume indication adjusts the volume levels of the first audio playback circuit 113 and the second audio playback circuit 123 to be close to or equal to the aforementioned predetermined volume.

因此，當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時，第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地，當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時，第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。Therefore, when the first Bluetooth member device 110 starts to use the first audio playback circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume output by the first audio playback circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcasting device 150, the volume of the second audio playback circuit 123 will be close to or equal to the aforementioned predetermined volume. size.

如此一來，第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小，就能讓使用者感到舒適，而不會造成使用者感到不適或不悅。In this way, when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously, the volume of the sound can make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

此外，由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小，已被預先設置成接近或等於前述的預定音量大小，所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播，也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。In addition, since the volume levels when the first audio playback circuit 113 and the second audio playback circuit 123 start playing the predetermined audio data synchronously have been preset to be close to or equal to the aforementioned predetermined volume levels, even if the audio broadcasting device 150 is using The audio broadcast can be started without the user's psychological expectation, and the problem of the user being frightened by the sudden loudness of the audio broadcast can also be avoided.

在前述的實施例中，藍牙音訊廣播系統100是採用BLE音訊技術來進行音訊廣播，而且音訊廣播裝置150可採用低複雜度通信編解碼器（LC3）對預定音訊資料進行編碼。因此，相較於傳統的音訊廣播方式而言，藍牙音訊廣播系統100所採用的前述音訊廣播方法，不僅可降低第一藍牙成員裝置110及第二藍牙成員裝置120的耗電量，進而延長第一藍牙成員裝置110及第二藍牙成員裝置120的使用時間，還能有效提升音訊廣播的整體音訊品質。In the aforementioned embodiment, the Bluetooth audio broadcasting system 100 uses the BLE audio technology for audio broadcasting, and the audio broadcasting device 150 can use the low-complexity communication codec (LC3) to encode the predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting system 100 can not only reduce the power consumption of the first Bluetooth member device 110 and the second Bluetooth member device 120, but also prolong the The usage time of one Bluetooth member device 110 and the second Bluetooth member device 120 can also effectively improve the overall audio quality of the audio broadcast.

同樣地，藍牙音訊廣播系統100中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140），在開始播放音訊廣播裝置150傳來的預定音訊資料之前，就會先依據音訊廣播裝置150傳來的預定音量指示，分別將相關的音訊播放電路（圖中未繪示）的音量大小，調整成接近或等於前述的預定音量大小。Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 100 (eg, the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140 ), before starting to play the predetermined audio data from the audio broadcasting device 150 , First, according to the predetermined volume indication from the audio broadcasting device 150 , the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume.

如此一來，藍牙音訊廣播系統100中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小，就能讓使用者感到舒適，而不會造成使用者感到不適或不悅。In this way, when the other Bluetooth member devices in the Bluetooth audio broadcasting system 100 start to play the predetermined audio data synchronously, the volume of the volume can make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

請參考圖3，其所繪示為本發明一第二實施例的藍牙音訊廣播系統200簡化後的功能方塊圖。類似於圖1中的藍牙音訊廣播系統100，圖3中的藍牙音訊廣播系統200同樣包含了音訊廣播裝置150以及多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）。此外，藍牙音訊廣播系統200中還包含了一音訊來源裝置370。Please refer to FIG. 3 , which is a simplified functional block diagram of a Bluetooth audio broadcasting system 200 according to a second embodiment of the present invention. Similar to the Bluetooth audio broadcasting system 100 in FIG. 1 , the Bluetooth audio broadcasting system 200 in FIG. 3 also includes an audio broadcasting device 150 and a plurality of Bluetooth member devices (eg, the aforementioned first Bluetooth member device 110 , second Bluetooth member device device 120, a third Bluetooth member device 130, and a fourth Bluetooth member device 140). In addition, the Bluetooth audio broadcasting system 200 further includes an audio source device 370 .

音訊來源裝置370設置成可接收使用者發出的聲音以產生相應的音訊信號AS，並可利用各種有線或無線傳輸方式將音訊信號AS傳送給音訊廣播裝置150。在圖3的實施例中，音訊廣播裝置150還設置成可將音訊來源裝置370傳來的音訊信號AS，轉換成要廣播的預定音訊資料。換言之，在圖3的實施例中，音訊廣播裝置150所廣播的預定音訊資料的內容，是源自於音訊來源裝置370。The audio source device 370 is configured to receive the sound from the user to generate the corresponding audio signal AS, and can transmit the audio signal AS to the audio broadcasting device 150 by various wired or wireless transmission methods. In the embodiment of FIG. 3 , the audio broadcasting device 150 is further configured to convert the audio signal AS transmitted from the audio source device 370 into predetermined audio data to be broadcast. In other words, in the embodiment of FIG. 3 , the content of the predetermined audio data broadcast by the audio broadcasting device 150 is derived from the audio source device 370 .

在運作時，音訊廣播裝置150可採用藍牙核心規格5.2版本或較新的版本所規範的BLE音訊技術來廣播預定音訊資料。與圖1的實施例相同，音訊廣播裝置150可透過BIS邏輯傳輸通道，將包含預定音訊資料的低功耗藍牙音訊封包，向藍牙音訊廣播系統200中的多個藍牙成員裝置（例如，圖3中所繪示的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140）進行廣播。In operation, the audio broadcast device 150 may use the BLE audio technology specified in the Bluetooth Core Specification version 5.2 or later to broadcast predetermined audio data. Similar to the embodiment of FIG. 1 , the audio broadcast device 150 can send the Bluetooth Low Energy audio packets containing predetermined audio data to a plurality of Bluetooth member devices in the Bluetooth audio broadcast system 200 (eg, FIG. 3 ) through the BIS logical transmission channel. The first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 shown in ) broadcast.

藍牙音訊廣播系統200中的各藍牙成員裝置，可比照圖1實施例中的對應裝置的方式，來接收及播放音訊廣播裝置150所廣播的預定音訊資料。Each Bluetooth member device in the Bluetooth audio broadcasting system 200 can receive and play the predetermined audio data broadcasted by the audio broadcasting device 150 in the manner of the corresponding device in the embodiment of FIG. 1 .

在圖3的實施例中，音訊來源裝置370還設置成可在音訊廣播裝置150進行音訊廣播的過程中，根據使用者的操作或指令，產生並傳送一音量調整信號VAS給音訊廣播裝置150。音訊廣播裝置150則可依據音訊來源裝置370產生的音量調整信號VAS，產生一相應的音量調整指示，並傳送給第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140，以指示第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140調整播放的音量大小。In the embodiment of FIG. 3 , the audio source device 370 is further configured to generate and transmit a volume adjustment signal VAS to the audio broadcast device 150 according to a user's operation or instruction during the audio broadcast process of the audio broadcast device 150 . The audio broadcasting device 150 can generate a corresponding volume adjustment instruction according to the volume adjustment signal VAS generated by the audio source device 370, and transmit it to the first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140 to instruct the first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140 to adjust the playback volume.

換言之，藍牙音訊廣播系統200可在進行音訊廣播的過程中，根據使用者的操作或指令而動態地調整第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140的音量大小。In other words, the Bluetooth audio broadcasting system 200 can dynamically adjust the first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the third Bluetooth member device 130 according to the user's operation or instruction during the audio broadcasting process. The volume level of the four Bluetooth member devices 140 .

實作上，前述的音訊來源裝置370可以用能夠接收聲音並轉換成相應的音訊信號AS、可根據使用者的操作或指令產生音量調整信號VAS、且支援合適的信號傳輸方式的各種合適電路來實現，例如，一筆記型電腦、一平板電腦、一行動通信裝置（例如，手機）、一穿戴式裝置、一視訊會議系統、或是各種類型的無線麥克風。In practice, the aforementioned audio source device 370 can be implemented by various suitable circuits that can receive sound and convert it into a corresponding audio signal AS, can generate a volume adjustment signal VAS according to user operations or instructions, and support a suitable signal transmission method. Implement, for example, a notebook computer, a tablet computer, a mobile communication device (eg, a mobile phone), a wearable device, a video conference system, or various types of wireless microphones.

前述有關藍牙音訊廣播系統100中的其他電路與裝置的實施方式及連接方式的描述，亦適用於圖3的藍牙音訊廣播系統200中。為簡潔起見，在此不重複敘述。The foregoing descriptions about the implementations and connection methods of other circuits and devices in the Bluetooth audio broadcasting system 100 are also applicable to the Bluetooth audio broadcasting system 200 in FIG. 3 . For brevity, the description is not repeated here.

以下將搭配圖4至圖5來進一步說明藍牙音訊廣播系統200的運作方式。圖4至圖5為本發明一第二實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。基本上，圖4中的流程202至流程234的運作方式，都跟前述圖2實施例中的相應流程相同。The operation of the Bluetooth audio broadcasting system 200 will be further described below with reference to FIGS. 4 to 5 . 4 to 5 are simplified flowcharts of a method for performing audio broadcasting using the BLE audio technology according to a second embodiment of the present invention. Basically, the operations of the processes 202 to 234 in FIG. 4 are the same as the corresponding processes in the aforementioned embodiment of FIG. 2 .

例如，與前述圖2的實施例類似，當使用者想要利用藍牙音訊廣播系統200中的第一藍牙成員裝置110與第二藍牙成員裝置120接收音訊廣播時，第一藍牙成員裝置110可進行圖4中的流程202，而第二藍牙成員裝置120則可進行圖4中的流程204。For example, similar to the aforementioned embodiment of FIG. 2 , when the user wants to use the first Bluetooth member device 110 and the second Bluetooth member device 120 in the Bluetooth audio broadcast system 200 to receive audio broadcasts, the first Bluetooth member device 110 can The process 202 in FIG. 4 , and the second Bluetooth member device 120 can perform the process 204 in FIG. 4 .

如前所述，圖3實施例中的音訊廣播裝置150可將音訊來源裝置370傳來的音訊信號AS，轉換成要廣播的預定音訊資料，並進行音訊廣播。如圖4所示，當音訊廣播裝置150需要進行音訊廣播時，同樣可進行圖4中的流程206至流程210。As mentioned above, the audio broadcasting device 150 in the embodiment of FIG. 3 can convert the audio signal AS transmitted from the audio source device 370 into predetermined audio data to be broadcast, and perform audio broadcasting. As shown in FIG. 4 , when the audio broadcasting apparatus 150 needs to perform audio broadcasting, the process 206 to the process 210 in FIG. 4 can also be performed.

接著，第一藍牙成員裝置110可進行圖4中的流程212、流程214、及流程216，而第二藍牙成員裝置120則可進行圖4中的流程212、流程218、及流程220。Next, the first Bluetooth member device 110 may perform the process 212 , the process 214 , and the process 216 in FIG. 4 , and the second Bluetooth member device 120 may perform the process 212 , the process 218 , and the process 220 in FIG. 4 .

音訊廣播裝置150在進行流程210之後，還會進行圖4中的流程222及流程224。另一方面，第一藍牙成員裝置110可進行圖4中的流程226、流程228、及流程230，而第二藍牙成員裝置120則可進行圖4中的流程226、流程232、及流程234。After the audio broadcasting apparatus 150 performs the process 210, the process 222 and the process 224 in FIG. 4 are also performed. On the other hand, the first Bluetooth member device 110 can perform the process 226 , the process 228 , and the process 230 in FIG. 4 , and the second Bluetooth member device 120 can perform the process 226 , the process 232 , and the process 234 in FIG. 4 .

同樣地，音訊廣播裝置150可重複進行流程222及流程224以廣播後續的預定音訊資料。另一方面，第一藍牙成員裝置110可重複進行流程226、流程228、及流程230以接收及播放後續的預定音訊資料，而第一藍牙成員裝置110則可重複進行流程226、流程232、及流程234以接收及播放後續的預定音訊資料。Likewise, the audio broadcasting apparatus 150 may repeat the process 222 and the process 224 to broadcast subsequent predetermined audio data. On the other hand, the first Bluetooth member device 110 may repeat the process 226 , the process 228 , and the process 230 to receive and play the subsequent predetermined audio data, and the first Bluetooth member device 110 may repeat the process 226 , the process 232 , and Process 234 to receive and play subsequent predetermined audio data.

如前所述，藍牙音訊廣播系統200可在進行音訊廣播的過程中，根據使用者的操作或指令而動態地調整藍牙音訊廣播系統200中的多個藍牙成員裝置的音量大小。As mentioned above, the Bluetooth audio broadcasting system 200 can dynamically adjust the volume of the plurality of Bluetooth member devices in the Bluetooth audio broadcasting system 200 according to the user's operation or instruction during the audio broadcasting process.

例如，在音訊廣播裝置150進行音訊廣播的過程中（亦即，在音訊廣播裝置150重複進行圖4的流程222及流程224的過程中），倘若音訊來源裝置370的使用者想要調整第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140的音量大小，則使用者可對訊來源裝置370進行特定的操作或下達特定的指令，以致使音訊來源裝置370產生並傳送一音量調整信號VAS給音訊廣播裝置150。For example, during the process of audio broadcasting by the audio broadcasting device 150 (that is, during the process in which the audio broadcasting device 150 repeatedly performs the process 222 and the process 224 in FIG. 4 ), if the user of the audio source device 370 wants to adjust the first The volume of the Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 , the user can perform a specific operation or issue a specific command on the source device 370 , so that The audio source device 370 generates and transmits a volume adjustment signal VAS to the audio broadcasting device 150 .

如圖5所示，音訊廣播裝置150可在接收到音量調整信號VAS時，進行圖5中的流程502。As shown in FIG. 5 , the audio broadcasting apparatus 150 may perform the process 502 in FIG. 5 when receiving the volume adjustment signal VAS.

在流程502中，音訊廣播裝置150可將用來指示一音量調整方向（例如，調升或調降）的一音量調整指示，***一或多個標的資料項目中。在某些實施例中，前述的音量調整指示除了可用來指示音量調整方向之外，還可用來指示音量的調整量，例如，3%、5%、10%、15%、1分貝、2分貝、3分貝、5分貝等等。在運作時，音訊廣播裝置150可將音量調整指示***單一個標的資料項目的單一或多個特定欄位中，或是分散***多個標的資料項目的特定欄位中。In the process 502, the audio broadcast device 150 may insert a volume adjustment instruction for indicating a volume adjustment direction (eg, up or down) into one or more target data items. In some embodiments, the aforementioned volume adjustment indication can be used not only to indicate the volume adjustment direction, but also to indicate the volume adjustment amount, for example, 3%, 5%, 10%, 15%, 1 dB, 2 dB , 3 dB, 5 dB, etc. During operation, the audio broadcasting apparatus 150 can insert the volume adjustment instruction into one or more specific fields of a single target data item, or insert it into specific fields of a plurality of target data items dispersedly.

例如，在前述的標的資料項目是各種藍牙廣告封包的某些實施例中，音訊廣播裝置150可將前述的音量調整指示，***單一個藍牙廣告封包的單一或多個特定欄位中，或是分散***多個藍牙廣告封包的特定欄位中。For example, in some embodiments in which the aforementioned target data items are various Bluetooth advertisement packets, the audio broadcast device 150 may insert the aforementioned volume adjustment instruction into one or more specific fields of a single Bluetooth advertisement packet, or Scattered into specific fields of multiple Bluetooth advertising packets.

又例如，在前述的標的資料項目是各種BIS協定資料單元或BIG協定資料單元的某些實施例中，音訊廣播裝置150可將前述的音量調整指示，***單一個BIS協定資料單元或BIG協定資料單元的單一或多個特定欄位中，或是分散***多個BIS協定資料單元或BIG協定資料單元的特定欄位中。實作上，前述的特定欄位可以是BIS協定資料單元或BIG協定資料單元中的事件計數（Event Counter）欄位、子事件計數（Sub-Event Counter）欄位、或負載計數（Payload Counter）欄位等等。For another example, in some embodiments in which the aforementioned target data items are various BIS protocol data units or BIG protocol data units, the audio broadcasting device 150 may insert the aforementioned volume adjustment instruction into a single BIS protocol data unit or BIG protocol data unit. It can be inserted into a single or multiple specific fields of the unit, or inserted into the specific fields of multiple BIS protocol data units or BIG protocol data units. In practice, the aforementioned specific field may be an Event Counter field, a Sub-Event Counter field, or a Payload Counter field in the BIS protocol data unit or the BIG protocol data unit. fields, etc.

在流程504中，音訊廣播裝置150可在一標的傳送模式下，將前述的一或多個標的資料項目傳送出去，以使得在音訊廣播裝置150的藍牙信號傳輸範圍內的第一藍牙成員裝置110及第二藍牙成員裝置120、以及其他藍牙裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140），能夠接收到前述的一或多個標的資料項目。In the process 504 , the audio broadcasting device 150 may transmit the aforementioned one or more target data items in a target transmission mode, so that the first Bluetooth member device 110 within the Bluetooth signal transmission range of the audio broadcasting device 150 and the second Bluetooth member device 120 and other Bluetooth devices (eg, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140 ) can receive the aforementioned one or more target data items.

例如，在前述的標的傳送模式是可掃描模式、可連線模式、不可連線模式、或不可掃描模式的某些實施例中，前述流程502與流程504中所指稱的一或多個標的資料項目，可以是一或多個輔助廣告指示（AUX_ADV_IND）封包。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個廣告拓展指示（ADV_EXT_IND）封包、與一或多個輔助廣告指示（AUX_ADV_IND）封包所形成的一組封包。For example, in some embodiments in which the aforementioned target transfer mode is scannable mode, connectable mode, non-connectable mode, or non-scannable mode, the one or more target data referred to in the aforementioned process 502 and process 504 Item, which can be one or more auxiliary advertisement indication (AUX_ADV_IND) packets. Alternatively, the one or more target data items referred to in the aforementioned processes 502 and 504 may also be formed by one or more advertisement extension indication (ADV_EXT_IND) packets and one or more auxiliary advertisement indication (AUX_ADV_IND) packets. A set of packets.

在此情況下，倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在低功耗拓展被動掃描模式、低功耗拓展主動掃描模式、或是低功耗拓展發起者模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程506，以接收音訊廣播裝置150傳來的一或多個標的資料項目。In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 are operating in the low-power extended passive scanning mode, the low-power extended active scanning mode, or the low-power extended initiator mode, the first A Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 may perform the process 506 to receive one or more target data items from the audio broadcasting device 150 .

又例如，在前述的標的傳送模式是不可連線模式、或不可掃描模式的某些實施例中，前述流程502與流程504中所指稱的一或多個標的資料項目，可以是一或多個輔助鏈接指示（AUX_CHAIN_IND）封包。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個廣告拓展指示（ADV_EXT_IND）封包、一或多個輔助廣告指示（AUX_ADV_IND）封包、與一或多個輔助鏈接指示（AUX_CHAIN_IND）封包所形成的一組封包。For another example, in some embodiments in which the aforementioned target transmission mode is the unconnectable mode or the unscannable mode, the one or more target data items referred to in the aforementioned processes 502 and 504 may be one or more Auxiliary link indication (AUX_CHAIN_IND) packet. Alternatively, the one or more target data items referred to in the aforementioned processes 502 and 504 may also be one or more advertisement extension indication (ADV_EXT_IND) packets, one or more auxiliary advertisement indication (AUX_ADV_IND) packets, and one or more A set of packets formed by multiple AUX_CHAIN_IND packets.

在此情況下，倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在低功耗拓展被動掃描模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程506，以接收音訊廣播裝置150傳來的一或多個標的資料項目。In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 are operating in the low-power extended passive scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 may perform the process 506 to One or more target data items transmitted from the audio broadcasting device 150 are received.

又例如，在前述的標的傳送模式是可掃描模式的某些實施例中，前述流程502與流程504中所指稱的一或多個標的資料項目，可以是一或多個輔助掃描回應（AUX_SCAN_RSP）封包。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個廣告拓展指示（ADV_EXT_IND）封包、一或多個輔助廣告指示（AUX_ADV_IND）封包、與一或多個輔助掃描回應（AUX_SCAN_RSP）封包所形成的一組封包。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個輔助掃描回應（AUX_SCAN_RSP）封包、與一或多個輔助鏈接指示（AUX_CHAIN_IND）封包所形成的一組封包。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個廣告拓展指示（ADV_EXT_IND）封包、一或多個輔助廣告指示（AUX_ADV_IND）封包、一或多個輔助掃描回應（AUX_SCAN_RSP）封包、與一或多個輔助鏈接指示（AUX_CHAIN_IND）封包所形成的一組封包。For another example, in some embodiments in which the aforementioned target transmission mode is the scannable mode, the one or more target data items referred to in the aforementioned processes 502 and 504 may be one or more auxiliary scan responses (AUX_SCAN_RSP) packet. Alternatively, the one or more target data items referred to in the aforementioned processes 502 and 504 may also be one or more advertisement extension indication (ADV_EXT_IND) packets, one or more auxiliary advertisement indication (AUX_ADV_IND) packets, and one or more A group of packets formed by multiple auxiliary scan response (AUX_SCAN_RSP) packets. Alternatively, the one or more target data items referred to in the aforementioned processes 502 and 504 may also be formed by one or more auxiliary scan response (AUX_SCAN_RSP) packets and one or more auxiliary link indication (AUX_CHAIN_IND) packets. A set of packets. Alternatively, the one or more target data items referred to in the aforementioned processes 502 and 504 may also be one or more advertisement extension indication (ADV_EXT_IND) packets, one or more auxiliary advertisement indication (AUX_ADV_IND) packets, one or more A group of packets formed by an auxiliary scan response (AUX_SCAN_RSP) packet and one or more auxiliary link indication (AUX_CHAIN_IND) packets.

在此情況下，倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在低功耗拓展主動掃描模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程506，以接收音訊廣播裝置150傳來的一或多個標的資料項目。In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 are operating in the low-power extended active scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 506 to One or more target data items transmitted from the audio broadcasting device 150 are received.

又例如，在前述的標的傳送模式是不可連線模式、不可掃描模式、周期性廣告模式、低功耗拓展廣告模式、或低功耗周期性廣告模式的某些實施例中，前述流程502與流程504中所指稱的一或多個標的資料項目，可以是一或多個輔助同步指示（AUX_SYNC_IND）封包。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個廣告拓展指示（ADV_EXT_IND）封包、一或多個輔助廣告指示（AUX_ADV_IND）封包、與一或多個輔助同步指示（AUX_SYNC_IND）封包所形成的一組封包。For another example, in some embodiments in which the aforementioned target transmission mode is the unconnectable mode, the unscannable mode, the periodic advertisement mode, the low-power extended advertisement mode, or the low-power periodic advertisement mode, the aforementioned process 502 and The one or more target data items referred to in the process 504 may be one or more auxiliary synchronization indication (AUX_SYNC_IND) packets. Alternatively, the one or more target data items referred to in the aforementioned processes 502 and 504 may also be one or more advertisement extension indication (ADV_EXT_IND) packets, one or more auxiliary advertisement indication (AUX_ADV_IND) packets, and one or more A set of packets formed by multiple Auxiliary Sync Indication (AUX_SYNC_IND) packets.

在此情況下，倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在周期性掃描模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程506，以接收音訊廣播裝置150傳來的一或多個標的資料項目。In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 are operating in the periodic scanning mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 506 to receive the audio broadcast One or more target data items sent from the device 150 .

又例如，在前述的標的傳送模式是藍牙4.0版本的藍牙通信協定所規範的廣告模式的某些實施例中，前述流程502與流程504中所指稱的一或多個標的資料項目，可以是一或多個廣告指示（ADV_IND）封包、一或多個不可連接廣告指示（ADV_NONCONN_IND）封包、或是一或多個可查廣告指示（ADV_DISCOVER_IND）封包。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個廣告指示（ADV_IND）封包、與一或多個不可連接廣告指示（ADV_NONCONN_IND）封包所形成的一組封包。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個廣告指示（ADV_IND）封包、與一或多個可查廣告指示（ADV_DISCOVER_IND）封包所形成的一組封包。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個廣告指示（ADV_IND）封包、與一或多個不可連接廣告指示（ADV_NONCONN_IND）封包、與一或多個可查廣告指示（ADV_DISCOVER_IND）封包所形成的一組封包。For another example, in some embodiments in which the aforementioned target transmission mode is an advertisement mode regulated by the Bluetooth communication protocol of the Bluetooth 4.0 version, the one or more target data items referred to in the aforementioned processes 502 and 504 may be a One or more advertisement indication (ADV_IND) packets, one or more non-connectable advertisement indication (ADV_NONCONN_IND) packets, or one or more advertisement indication (ADV_DISCOVER_IND) packets. Alternatively, the one or more target data items referred to in the aforementioned processes 502 and 504 may also be formed by one or more advertisement indication (ADV_IND) packets and one or more non-connectable advertisement indication (ADV_NONCONN_IND) packets A set of packets. Alternatively, the one or more target data items referred to in the aforementioned process 502 and process 504 may also be formed by one or more advertisement indication (ADV_IND) packets and one or more advertisement indication (ADV_DISCOVER_IND) packets. A set of packets. Alternatively, the one or more target data items referred to in the aforementioned processes 502 and 504 may also be one or more advertisement indication (ADV_IND) packets, one or more non-connectable advertisement indication (ADV_NONCONN_IND) packets, and one or more advertisement indication (ADV_NONCONN_IND) packets. or a group of packets formed by multiple advisable advertisement indication (ADV_DISCOVER_IND) packets.

在此情況下，倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在可以接收前述標的資料項目的模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程506，以接收音訊廣播裝置150傳來的一或多個標的資料項目。In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 are operating in a mode capable of receiving the aforementioned target data item, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 506, to receive one or more target data items from the audio broadcasting device 150 .

又例如，在前述的標的傳送模式是等時廣播模式、或廣播等時同步性模式的某些實施例中，前述流程502與流程504中所指稱的一或多個標的資料項目，可以是一或多個BIS協定資料單元。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個BIG協定資料單元。或者，前述流程502與流程504中所指稱的一或多個標的資料項目，也可以是一或多個BIS協定資料單元、與一或多個BIG協定資料單元所形成的一組協定資料單元。For another example, in some embodiments in which the aforementioned target transmission mode is an isochronous broadcast mode or a broadcast isochronous mode, the one or more target data items referred to in the aforementioned processes 502 and 504 may be a or more BIS protocol data units. Alternatively, the one or more target data items referred to in the foregoing process 502 and process 504 may also be one or more BIG protocol data units. Alternatively, the one or more target data items referred to in the aforementioned processes 502 and 504 may also be one or more BIS protocol data units or a group of protocol data units formed by one or more BIG protocol data units.

在此情況下，倘若第一藍牙通信電路111及第二藍牙通信電路121是操作在可透過BIS邏輯傳輸通道來接收各種協定資料單元、和/或可透過BIG邏輯傳輸通道來接收各種協定資料單元的操作模式，則第一藍牙通信電路111及第二藍牙通信電路121可進行流程506，以接收音訊廣播裝置150傳來的一或多個標的資料項目。In this case, if the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 are operated to receive various protocol data units through the BIS logical transmission channel, and/or can receive various protocol data units through the BIG logical transmission channel In the operation mode, the first Bluetooth communication circuit 111 and the second Bluetooth communication circuit 121 can perform the process 506 to receive one or more target data items from the audio broadcasting device 150 .

接下來，第一藍牙成員裝置110會進行流程508及流程510，而第二藍牙成員裝置120則會進行流程512及流程514。Next, the first Bluetooth member device 110 will perform the process 508 and the process 510 , and the second Bluetooth member device 120 will perform the process 512 and the process 514 .

在流程508中，第一控制電路114可解析第一藍牙通信電路111所接收到的一或多個標的資料項目，以擷取出一音量調整指示。In the process 508 , the first control circuit 114 may parse one or more target data items received by the first Bluetooth communication circuit 111 to extract a volume adjustment instruction.

在流程510中，第一控制電路114可依據音量調整指示，控制第一音訊處理電路112調整第一音訊播放電路113的一音量大小。在運作時，第一控制電路114可依據音量調整指示，控制第一音訊處理電路112調整第一音訊播放電路113的增益值，以調整第一音訊播放電路113的音量大小。In the process 510 , the first control circuit 114 may control the first audio processing circuit 112 to adjust a volume of the first audio playback circuit 113 according to the volume adjustment instruction. During operation, the first control circuit 114 can control the first audio processing circuit 112 to adjust the gain value of the first audio playback circuit 113 according to the volume adjustment instruction, so as to adjust the volume of the first audio playback circuit 113 .

在流程512中，第二控制電路124可解析第二藍牙通信電路121所接收到的一或多個標的資料項目，以擷取出與一音量調整指示。In the process 512, the second control circuit 124 may parse one or more target data items received by the second Bluetooth communication circuit 121 to extract and a volume adjustment instruction.

在流程514中，第二控制電路124可依據音量調整指示，控制第二音訊處理電路122調整第二音訊播放電路123的一音量大小。在運作時，第二控制電路124可依據音量調整指示，控制第二音訊處理電路122調整第二音訊播放電路123的增益值，以調整第二音訊播放電路123的音量大小。In the process 514 , the second control circuit 124 may control the second audio processing circuit 122 to adjust a volume of the second audio playback circuit 123 according to the volume adjustment instruction. During operation, the second control circuit 124 can control the second audio processing circuit 122 to adjust the gain value of the second audio playback circuit 123 according to the volume adjustment instruction, so as to adjust the volume of the second audio playback circuit 123 .

由於第一藍牙成員裝置110及第二藍牙成員裝置120都是依據音訊廣播裝置150所發出的標的資料項目中的音量調整指示來調整音量大小，所以當第一音訊處理電路112調整第一音訊播放電路113的音量大小時，第二音訊處理電路122也會同步調整第二音訊播放電路123的音量大小。換言之，流程510與流程510會同步進行。Since the first Bluetooth member device 110 and the second Bluetooth member device 120 both adjust the volume according to the volume adjustment instruction in the target data item sent by the audio broadcasting device 150, when the first audio processing circuit 112 adjusts the first audio playback When the volume of the circuit 113 is high, the second audio processing circuit 122 also adjusts the volume of the second audio playing circuit 123 synchronously. In other words, the process 510 and the process 510 are performed synchronously.

如圖5所示，音訊廣播裝置150在進行前述的流程504之後，可重複進行圖4中的流程222與流程224以廣播後續的預定音訊資料。第一藍牙成員裝置110在進行流程510之後，可重複進行圖4中的流程226、流程228、及流程230，以接收及播放後續的預定音訊資料。第二藍牙成員裝置110在進行流程514之後，可重複進行圖4中的流程226、流程232、及流程234，以接收及播放後續的預定音訊資料。As shown in FIG. 5 , after performing the aforementioned process 504 , the audio broadcasting apparatus 150 may repeat the process 222 and the process 224 in FIG. 4 to broadcast subsequent predetermined audio data. After performing the process 510, the first Bluetooth member device 110 may repeat the process 226, the process 228, and the process 230 in FIG. 4 to receive and play the subsequent predetermined audio data. After performing the process 514, the second Bluetooth member device 110 may repeat the process 226, the process 232, and the process 234 in FIG. 4 to receive and play the subsequent predetermined audio data.

同樣地，藍牙音訊廣播系統200中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140），可以比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的運作方式，接收音訊廣播裝置150所廣播的低功耗藍牙音訊封包，播放低功耗藍牙音訊封包中的預定音訊資料，以及依據音訊廣播裝置150所發出的標的資料項目中的音量調整指示來同步調整音量大小。Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 200 (eg, the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140 ) can be compared with the aforementioned first Bluetooth member device 110 or second Bluetooth member device The operation mode of 120 is to receive the low-power bluetooth audio packet broadcast by the audio broadcasting device 150, play the predetermined audio data in the low-power bluetooth audio packet, and adjust the volume according to the volume adjustment instruction in the target data item sent by the audio broadcasting device 150 to adjust the volume synchronously.

換言之，在第一藍牙成員裝置110及第二藍牙成員裝置120播放音訊廣播裝置150所廣播的音訊資料的過程中，音訊來源裝置370可根據使用者的操作或指令，指示音訊廣播裝置150廣播一音量調整指示給第一藍牙成員裝置110及第二藍牙成員裝置120，以同步調整第一藍牙成員裝置110及第二藍牙成員裝置120的音量大小。In other words, when the first Bluetooth member device 110 and the second Bluetooth member device 120 play the audio data broadcast by the audio broadcasting device 150, the audio source device 370 can instruct the audio broadcasting device 150 to broadcast a The volume adjustment is instructed to the first Bluetooth member device 110 and the second Bluetooth member device 120 to adjust the volume of the first Bluetooth member device 110 and the second Bluetooth member device 120 synchronously.

同樣地，在第三藍牙成員裝置130及第四藍牙成員裝置140播放音訊廣播裝置150所廣播的音訊資料的過程中，音訊來源裝置370可根據使用者的操作或指令，指示音訊廣播裝置150廣播一音量調整指示給第三藍牙成員裝置130及第四藍牙成員裝置140，以同步調整第三藍牙成員裝置130及第四藍牙成員裝置140的音量大小。Similarly, during the process of the third Bluetooth member device 130 and the fourth Bluetooth member device 140 playing the audio data broadcasted by the audio broadcasting device 150, the audio source device 370 can instruct the audio broadcasting device 150 to broadcast according to the user's operation or instruction. A volume adjustment instruction is given to the third Bluetooth member device 130 and the fourth Bluetooth member device 140 to adjust the volume of the third Bluetooth member device 130 and the fourth Bluetooth member device 140 synchronously.

由前述圖3至圖5的說明可知，在藍牙音訊廣播系統200中的多成員藍牙裝置開始播放音訊廣播裝置150傳來的預定音訊資料之前，第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示，分別將第一音訊播放電路113及第二音訊播放電路123的音量大小，調整成接近或等於前述的預定音量大小。3 to 5, before the multi-member Bluetooth device in the Bluetooth audio broadcasting system 200 starts to play the predetermined audio data from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member device 120 The volume of the first audio playback circuit 113 and the volume of the second audio playback circuit 123 are respectively adjusted to be close to or equal to the aforementioned predetermined volume according to the predetermined volume indication from the audio broadcasting device 150 .

因此，當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時，第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地，當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時，第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。Therefore, when the first Bluetooth member device 110 starts to use the first audio playback circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume output by the first audio playback circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcasting device 150, the volume of the second audio playback circuit 123 will be close to or equal to the aforementioned predetermined volume. size.

如此一來，第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小，就能讓使用者感到舒適，而不會造成使用者感到不適或不悅。In this way, when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously, the volume of the sound can make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

此外，由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小，已被預先設置成接近或等於前述的預定音量大小，所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播，也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。In addition, since the volume levels when the first audio playback circuit 113 and the second audio playback circuit 123 start playing the predetermined audio data synchronously have been preset to be close to or equal to the aforementioned predetermined volume levels, even if the audio broadcasting device 150 is using The audio broadcast can be started without the user's psychological expectation, and the problem of the user being frightened by the sudden loudness of the audio broadcast can also be avoided.

同樣地，藍牙音訊廣播系統200中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140），在開始播放音訊廣播裝置150傳來的預定音訊資料之前，就會先依據音訊廣播裝置150傳來的預定音量指示，分別將相關的音訊播放電路（圖中未繪示）的音量大小，調整成接近或等於前述的預定音量大小。因此，藍牙音訊廣播系統200中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小，也能讓使用者感到舒適，而不會造成使用者感到不適或不悅。Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 200 (eg, the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140 ), before starting to play the predetermined audio data transmitted from the audio broadcasting device 150 , First, according to the predetermined volume indication from the audio broadcasting device 150 , the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume. Therefore, the volume of the other Bluetooth member devices in the Bluetooth audio broadcasting system 200 when they start to play the predetermined audio data synchronously can also make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

另外，在藍牙音訊廣播系統200中的多成員藍牙裝置播放音訊廣播裝置150所廣播的音訊資料的過程中，音訊來源裝置370還可根據使用者的操作或指令，指示音訊廣播裝置150廣播一音量調整指示給個別藍牙成員裝置，以同步調整個別藍牙成員裝置的音量大小。換言之，前述的藍牙音訊廣播系統200允許使用者同步調整藍牙音訊廣播系統200中的不同藍牙成員裝置的音量大小。In addition, during the multi-member Bluetooth device in the Bluetooth audio broadcasting system 200 playing the audio data broadcasted by the audio broadcasting device 150, the audio source device 370 can also instruct the audio broadcasting device 150 to broadcast a volume according to the user's operation or instruction Adjust the instruction to individual Bluetooth member devices to adjust the volume of individual Bluetooth member devices simultaneously. In other words, the aforementioned Bluetooth audio broadcasting system 200 allows the user to adjust the volume of different Bluetooth member devices in the Bluetooth audio broadcasting system 200 synchronously.

再者，藍牙音訊廣播系統200是採用BLE音訊技術來進行音訊廣播，而且音訊廣播裝置150可採用低複雜度通信編解碼器（LC3）對預定音訊資料進行編碼。因此，相較於傳統的音訊廣播方式而言，藍牙音訊廣播系統200所採用的前述音訊廣播方法，不僅可降低多成員藍牙裝置的耗電量，進而延長多成員藍牙裝置的使用時間，還能有效提升音訊廣播的整體音訊品質。Furthermore, the Bluetooth audio broadcasting system 200 uses the BLE audio technology to perform audio broadcasting, and the audio broadcasting device 150 can use the low-complexity communication codec (LC3) to encode the predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting system 200 can not only reduce the power consumption of the multi-member Bluetooth device, thereby prolong the use time of the multi-member Bluetooth device, but also can reduce the power consumption of the multi-member Bluetooth device. Effectively improve the overall audio quality of audio broadcasting.

請參考圖6，其所繪示為本發明一第三實施例的藍牙音訊廣播系統200簡化後的功能方塊圖。類似於圖3中的藍牙音訊廣播系統200，圖6中的藍牙音訊廣播系統200同樣包含了音訊廣播裝置150、多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）、以及音訊來源裝置370。另外，圖6中的藍牙音訊廣播系統200還包含了一主控裝置660。Please refer to FIG. 6 , which is a simplified functional block diagram of a Bluetooth audio broadcasting system 200 according to a third embodiment of the present invention. Similar to the Bluetooth audio broadcasting system 200 in FIG. 3 , the Bluetooth audio broadcasting system 200 in FIG. 6 also includes an audio broadcasting device 150 , a plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110 , the second Bluetooth member device 110 ) device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 ), and the audio source device 370 . In addition, the Bluetooth audio broadcasting system 200 in FIG. 6 further includes a main control device 660 .

在藍牙音訊廣播系統200中，主控裝置660設置成可根據使用者的操作或指令，產生並傳送一音量調整信號VAS給音訊廣播裝置150。In the Bluetooth audio broadcasting system 200 , the main control device 660 is configured to generate and transmit a volume adjustment signal VAS to the audio broadcasting device 150 according to the user's operation or instruction.

如圖6所示，主控裝置660包含一通信電路661、一輸入電路663、以及一處理電路665。通信電路661設置成可利用各種有線或無線傳輸方式，與音訊廣播裝置150及音訊來源裝置370進行各種資料與指令通信。輸入電路663設置成允許主控裝置660的使用者對主控裝置660進行各種操作，例如，輸入指令、設定音量調整方向、或是設定音量調整量等等。處理電路665耦接於通信電路661及輸入電路663，並設置成可透過通信電路661控制音訊來源裝置370、或是接收音訊來源裝置370傳來的指令。處理電路665還設置成可依據使用者對輸入電路663的操作，產生一音量調整信號VAS，並可利用通信電路661將音量調整信號VAS傳送給音訊廣播裝置150。As shown in FIG. 6 , the main control device 660 includes a communication circuit 661 , an input circuit 663 , and a processing circuit 665 . The communication circuit 661 is configured to communicate various data and commands with the audio broadcasting device 150 and the audio source device 370 using various wired or wireless transmission methods. The input circuit 663 is configured to allow the user of the main control device 660 to perform various operations on the main control device 660, such as inputting commands, setting the volume adjustment direction, or setting the volume adjustment amount, and the like. The processing circuit 665 is coupled to the communication circuit 661 and the input circuit 663 , and is configured to control the audio source device 370 or receive commands from the audio source device 370 through the communication circuit 661 . The processing circuit 665 is further configured to generate a volume adjustment signal VAS according to the operation of the input circuit 663 by the user, and to transmit the volume adjustment signal VAS to the audio broadcasting device 150 through the communication circuit 661 .

實作上，通信電路661可用各種有線傳輸電路、無線傳輸電路、或是整合前述兩種通信機制的混合電路來實現。輸入電路663可用鍵盤、滑鼠、遙控器、觸控螢幕、觸控板、按鈕、電阻式觸控電路、電容式觸控電路、陀螺儀、聲控輸入裝置、手勢感應裝置、採用其他各種指令産生技術的電路、或前述裝置的組合來實現。處理電路665可利用具有適當運算能力及指令處理能力的單一處理器模組、多個處理器模組的組合、單一電腦系統、多個電腦系統的組合、單一伺服器、或是多個伺服器的組合來實現。In practice, the communication circuit 661 can be implemented by various wired transmission circuits, wireless transmission circuits, or a hybrid circuit integrating the foregoing two communication mechanisms. The input circuit 663 can be generated by a keyboard, a mouse, a remote control, a touch screen, a touch pad, a button, a resistive touch circuit, a capacitive touch circuit, a gyroscope, a voice control input device, a gesture sensing device, and other various commands. circuit, or a combination of the foregoing means. The processing circuit 665 can utilize a single processor module, a combination of multiple processor modules, a single computer system, a combination of multiple computer systems, a single server, or multiple servers with appropriate computing and instruction processing capabilities combination to achieve.

在實際應用中，前述主控裝置660中的不同功能方塊可分別用不同的電路來實現，也可整合在一行動通信裝置（例如，手機）、一穿戴式裝置、一平板電腦、一筆記型電腦、一桌上型電腦、一車載通信系統、一衛星通信裝置、一智慧音箱中、或是一視訊會議系統。In practical applications, different functional blocks in the aforementioned main control device 660 can be implemented by different circuits, and can also be integrated into a mobile communication device (eg, a mobile phone), a wearable device, a tablet computer, a notebook A computer, a desktop computer, a vehicle communication system, a satellite communication device, a smart speaker, or a video conference system.

與圖3的實施例類似，圖6中的音訊來源裝置370同樣可接收使用者發出的聲音以產生相應的音訊信號AS，並可利用各種有線或無線傳輸方式將音訊信號AS傳送給音訊廣播裝置150。圖6中的音訊廣播裝置150同樣可將音訊來源裝置370傳來的音訊信號AS，轉換成要廣播的預定音訊資料。換言之，圖6中的音訊廣播裝置150所廣播的預定音訊資料的內容，也是源自於音訊來源裝置370。Similar to the embodiment in FIG. 3 , the audio source device 370 in FIG. 6 can also receive the sound from the user to generate the corresponding audio signal AS, and can transmit the audio signal AS to the audio broadcasting device using various wired or wireless transmission methods. 150. The audio broadcasting device 150 in FIG. 6 can also convert the audio signal AS transmitted from the audio source device 370 into predetermined audio data to be broadcast. In other words, the content of the predetermined audio data broadcast by the audio broadcasting device 150 in FIG. 6 also originates from the audio source device 370 .

然而，與前述圖3中的藍牙音訊廣播系統200的不同之處在於，在圖6的實施例中，音量調整信號VAS是由主控裝置660產生並傳送給音訊廣播裝置150，而不是由音訊來源裝置370所產生。However, the difference from the aforementioned Bluetooth audio broadcasting system 200 in FIG. 3 is that in the embodiment of FIG. 6 , the volume adjustment signal VAS is generated by the main control device 660 and transmitted to the audio broadcasting device 150 instead of the audio broadcasting device 150 . Generated by source device 370 .

在運作時，圖6實施例中的藍牙音訊廣播系統200同樣可採用前述圖4的方式來進行音訊廣播。另外，在音訊廣播裝置150進行音訊廣播的過程中（亦即，在音訊廣播裝置150重複進行圖4的流程222及流程224的過程中），倘若主控裝置660的使用者想要調整第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140的音量大小，則使用者可對主控裝置660的輸入電路663進行特定的操作或下達特定的指令，以致使處理電路665產生一音量調整信號VAS，並利用通信電路661傳送音量調整信號VAS給音訊廣播裝置150。During operation, the Bluetooth audio broadcasting system 200 in the embodiment of FIG. 6 can also use the method of FIG. 4 to perform audio broadcasting. In addition, during the process of audio broadcasting by the audio broadcasting device 150 (that is, during the process in which the audio broadcasting device 150 repeatedly performs the process 222 and the process 224 in FIG. 4 ), if the user of the main control device 660 wants to adjust the first The volume of the Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 , the user can perform a specific operation on the input circuit 663 of the master device 660 or issue a specific command , so that the processing circuit 665 generates a volume adjustment signal VAS, and uses the communication circuit 661 to transmit the volume adjustment signal VAS to the audio broadcasting device 150 .

在此情況下，圖6中的音訊廣播裝置150可依據主控裝置660產生的音量調整信號VAS，進行前述圖5中的流程502與流程504，以指示藍牙音訊廣播系統200中的藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）同步調整音量大小。In this case, the audio broadcasting device 150 in FIG. 6 can perform the aforementioned process 502 and process 504 in FIG. 5 according to the volume adjustment signal VAS generated by the master control device 660 to instruct the Bluetooth member devices in the Bluetooth audio broadcasting system 200 (For example, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , third Bluetooth member device 130 , and fourth Bluetooth member device 140 ) adjust the volume synchronously.

例如，在第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140播放音訊廣播裝置150所廣播的音訊資料的過程中，主控裝置660可根據使用者的操作或指令，指示音訊廣播裝置150廣播一音量調整指示給第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140，以同步調整第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140的音量大小。For example, when the first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 play the audio data broadcast by the audio broadcasting device 150 , the master device 660 may According to the user's operation or instruction, the audio broadcasting device 150 is instructed to broadcast a volume adjustment instruction to the first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140 for synchronization. Adjust the volume of the first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 .

換言之，圖6中的藍牙音訊廣播系統200同樣允許使用者同步調整藍牙音訊廣播系統200中的所有藍牙成員裝置的音量大小。In other words, the Bluetooth audio broadcasting system 200 in FIG. 6 also allows the user to adjust the volume of all the Bluetooth member devices in the Bluetooth audio broadcasting system 200 synchronously.

前述有關圖3中的相關電路與裝置的實施方式及連接方式的描述，亦適用於圖6的藍牙音訊廣播系統200中。前述有關圖4與圖5的運作方式的描述，亦適用於圖6的藍牙音訊廣播系統200中。為簡潔起見，在此不重複敘述。The foregoing descriptions about the implementation and connection manner of the related circuits and devices in FIG. 3 are also applicable to the Bluetooth audio broadcasting system 200 in FIG. 6 . The foregoing description about the operation of FIG. 4 and FIG. 5 is also applicable to the Bluetooth audio broadcasting system 200 of FIG. 6 . For brevity, the description is not repeated here.

請參考圖7，其所繪示為本發明一第四實施例的藍牙音訊廣播系統200簡化後的功能方塊圖。類似於圖6中的藍牙音訊廣播系統200，圖7中的藍牙音訊廣播系統200同樣包含了音訊廣播裝置150、多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）、以及主控裝置660，但圖7中的藍牙音訊廣播系統200省略了前述的音訊來源裝置370。Please refer to FIG. 7 , which is a simplified functional block diagram of a Bluetooth audio broadcasting system 200 according to a fourth embodiment of the present invention. Similar to the Bluetooth audio broadcasting system 200 in FIG. 6 , the Bluetooth audio broadcasting system 200 in FIG. 7 also includes an audio broadcasting device 150 , a plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110 , the second Bluetooth member device 110 ) device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 ), and the master device 660 , but the Bluetooth audio broadcasting system 200 in FIG. 7 omits the aforementioned audio source device 370 .

在圖7的實施例中，音訊廣播裝置150要廣播的預定音訊資料，可以是預先儲存在音訊廣播裝置150中的音訊資料，或者也可以是音訊廣播裝置150依據周圍環境的聲音（例如，使用者的聲音）所產生的音訊資料。In the embodiment of FIG. 7 , the predetermined audio data to be broadcast by the audio broadcasting device 150 may be the audio data pre-stored in the audio broadcasting device 150 , or the audio broadcasting device 150 may be based on the sound of the surrounding environment (for example, using audio data generated by the voice of the user).

與前述圖6的實施例相同，圖7實施例中的音量調整信號VAS，同樣是由主控裝置660所產生並傳送給音訊廣播裝置150。Similar to the aforementioned embodiment of FIG. 6 , the volume adjustment signal VAS in the embodiment of FIG. 7 is also generated by the main control device 660 and transmitted to the audio broadcasting device 150 .

在運作時，圖7實施例中的藍牙音訊廣播系統200同樣可採用前述圖4的方式來進行音訊廣播。另外，在音訊廣播裝置150進行音訊廣播的過程中（亦即，在音訊廣播裝置150重複進行圖4的流程222及流程224的過程中），倘若主控裝置660的使用者想要調整第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140的音量大小，則使用者可對主控裝置660的輸入電路663進行特定的操作或下達特定的指令，以致使處理電路665產生一音量調整信號VAS，並利用通信電路661傳送音量調整信號VAS給音訊廣播裝置150。During operation, the Bluetooth audio broadcasting system 200 in the embodiment of FIG. 7 can also use the method of FIG. 4 to perform audio broadcasting. In addition, during the process of audio broadcasting by the audio broadcasting device 150 (that is, during the process in which the audio broadcasting device 150 repeatedly performs the process 222 and the process 224 in FIG. 4 ), if the user of the main control device 660 wants to adjust the first The volume of the Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 , the user can perform a specific operation on the input circuit 663 of the master device 660 or issue a specific command , so that the processing circuit 665 generates a volume adjustment signal VAS, and uses the communication circuit 661 to transmit the volume adjustment signal VAS to the audio broadcasting device 150 .

同樣地，圖7中的音訊廣播裝置150可依據主控裝置660產生的音量調整信號VAS，進行前述圖5中的流程502與流程504，以指示藍牙音訊廣播系統200中的多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）同步調整音量大小。Similarly, the audio broadcasting device 150 in FIG. 7 can perform the aforementioned process 502 and process 504 in FIG. 5 according to the volume adjustment signal VAS generated by the main control device 660 to indicate a plurality of Bluetooth member devices in the Bluetooth audio broadcasting system 200 (For example, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , third Bluetooth member device 130 , and fourth Bluetooth member device 140 ) adjust the volume synchronously.

例如，在第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140播放音訊廣播裝置150所廣播的音訊資料的過程中，主控裝置660可根據使用者的操作或指令，指示音訊廣播裝置150廣播一音量調整指示給第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140，以同步調整第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140的音量大小。For example, when the first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 play the audio data broadcast by the audio broadcasting device 150 , the master device 660 may According to the user's operation or instruction, the audio broadcasting device 150 is instructed to broadcast a volume adjustment instruction to the first Bluetooth member device 110, the second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140 for synchronization. Adjust the volume of the first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 .

換言之，圖7中的藍牙音訊廣播系統200同樣允許使用者同步調整藍牙音訊廣播系統200中的所有藍牙成員裝置的音量大小。In other words, the Bluetooth audio broadcasting system 200 in FIG. 7 also allows the user to adjust the volume of all Bluetooth member devices in the Bluetooth audio broadcasting system 200 synchronously.

前述有關圖3或圖6中的相關電路與裝置的實施方式及連接方式的描述，亦適用於圖7的藍牙音訊廣播系統200中。前述有關圖4與圖5的運作方式的描述，亦適用於圖7的藍牙音訊廣播系統200中。為簡潔起見，在此不重複敘述。The foregoing descriptions about the implementation and connection methods of the related circuits and devices in FIG. 3 or FIG. 6 are also applicable to the Bluetooth audio broadcasting system 200 in FIG. 7 . The foregoing description about the operation of FIG. 4 and FIG. 5 is also applicable to the Bluetooth audio broadcasting system 200 of FIG. 7 . For brevity, the description is not repeated here.

由前述圖3至圖7的說明可知，在藍牙音訊廣播系統200中的多成員藍牙裝置開始播放音訊廣播裝置150傳來的預定音訊資料之前，第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示，分別將第一音訊播放電路113及第二音訊播放電路123的音量大小，調整成接近或等於前述的預定音量大小。3 to 7, before the multi-member Bluetooth device in the Bluetooth audio broadcasting system 200 starts to play the predetermined audio data from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member device 120 The volume of the first audio playback circuit 113 and the volume of the second audio playback circuit 123 are respectively adjusted to be close to or equal to the aforementioned predetermined volume according to the predetermined volume indication from the audio broadcasting device 150 .

因此，當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時，第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地，當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時，第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。Therefore, when the first Bluetooth member device 110 starts to use the first audio playback circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume output by the first audio playback circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcasting device 150, the volume of the second audio playback circuit 123 will be close to or equal to the aforementioned predetermined volume. size.

如此一來，第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小，就能讓使用者感到舒適，而不會造成使用者感到不適或不悅。In this way, when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously, the volume of the sound can make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

此外，由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小，已被預先設置成接近或等於前述的預定音量大小，所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播，也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。In addition, since the volume levels when the first audio playback circuit 113 and the second audio playback circuit 123 start playing the predetermined audio data synchronously have been preset to be close to or equal to the aforementioned predetermined volume levels, even if the audio broadcasting device 150 is using The audio broadcast can be started without the user's psychological expectation, and the problem of the user being frightened by the sudden loudness of the audio broadcast can also be avoided.

同樣地，藍牙音訊廣播系統200中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140），在開始播放音訊廣播裝置150傳來的預定音訊資料之前，就會先依據音訊廣播裝置150傳來的預定音量指示，分別將相關的音訊播放電路（圖中未繪示）的音量大小，調整成接近或等於前述的預定音量大小。因此，藍牙音訊廣播系統200中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小，也能讓使用者感到舒適，而不會造成使用者感到不適或不悅。Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 200 (eg, the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140 ), before starting to play the predetermined audio data transmitted from the audio broadcasting device 150 , First, according to the predetermined volume indication from the audio broadcasting device 150 , the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume. Therefore, the volume of the other Bluetooth member devices in the Bluetooth audio broadcasting system 200 when they start to play the predetermined audio data synchronously can also make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

另外，在藍牙音訊廣播系統200中的多成員藍牙裝置播放音訊廣播裝置150所廣播的音訊資料的過程中，音訊來源裝置370或主控裝置660還可根據使用者的操作或指令，指示音訊廣播裝置150廣播一音量調整指示給個別藍牙成員裝置，以同步調整個別藍牙成員裝置的音量大小。換言之，前述的藍牙音訊廣播系統200允許使用者同步調整藍牙音訊廣播系統200中的不同藍牙成員裝置的音量大小。In addition, during the multi-member Bluetooth device in the Bluetooth audio broadcasting system 200 playing the audio data broadcasted by the audio broadcasting device 150, the audio source device 370 or the master device 660 can also instruct the audio broadcasting according to the user's operation or instruction The device 150 broadcasts a volume adjustment instruction to the individual Bluetooth member devices to synchronously adjust the volume of the individual Bluetooth member devices. In other words, the aforementioned Bluetooth audio broadcasting system 200 allows the user to adjust the volume of different Bluetooth member devices in the Bluetooth audio broadcasting system 200 synchronously.

再者，藍牙音訊廣播系統200是採用BLE音訊技術來進行音訊廣播，而且音訊廣播裝置150可採用低複雜度通信編解碼器（LC3）對預定音訊資料進行編碼。因此，相較於傳統的音訊廣播方式而言，藍牙音訊廣播系統200所採用的前述音訊廣播方法，不僅可降低多成員藍牙裝置的耗電量，進而延長多成員藍牙裝置的使用時間，還能有效提升音訊廣播的整體音訊品質。Furthermore, the Bluetooth audio broadcasting system 200 uses the BLE audio technology to perform audio broadcasting, and the audio broadcasting device 150 can use the low-complexity communication codec (LC3) to encode the predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting system 200 can not only reduce the power consumption of the multi-member Bluetooth device, thereby prolong the use time of the multi-member Bluetooth device, but also can reduce the power consumption of the multi-member Bluetooth device. Effectively improve the overall audio quality of audio broadcasting.

請參考圖8，其所繪示為本發明一第五實施例的藍牙音訊廣播系統300簡化後的功能方塊圖。類似於圖7中的藍牙音訊廣播系統200，圖8中的藍牙音訊廣播系統300同樣包含了音訊廣播裝置150、多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）、以及主控裝置660。Please refer to FIG. 8 , which is a simplified functional block diagram of a Bluetooth audio broadcasting system 300 according to a fifth embodiment of the present invention. Similar to the Bluetooth audio broadcasting system 200 in FIG. 7 , the Bluetooth audio broadcasting system 300 in FIG. 8 also includes an audio broadcasting device 150 , a plurality of Bluetooth member devices (eg, the aforementioned first Bluetooth member device 110 , the second Bluetooth member device 110 ) device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 ), and the master device 660 .

不同於前述圖7的實施例，藍牙音訊廣播系統300中的部分或全部藍牙成員裝置，還包含有一觸發電路及一無線通信電路。例如，在圖8的實施例中，除了前述的第一藍牙通信電路111、第一音訊處理電路112、第一音訊播放電路113、以及第一控制電路114之外，第一藍牙成員裝置110還包含有一第一無線通信電路815以及一第一觸發電路816。相仿地，除了前述的第二藍牙通信電路121、第二音訊處理電路122、第二音訊播放電路123、以及第二控制電路124之外，第二藍牙成員裝置120還包含有一第二無線通信電路825以及一第二觸發電路826。Different from the aforementioned embodiment of FIG. 7 , some or all of the Bluetooth member devices in the Bluetooth audio broadcasting system 300 further include a trigger circuit and a wireless communication circuit. For example, in the embodiment of FIG. 8 , in addition to the aforementioned first Bluetooth communication circuit 111 , the first audio processing circuit 112 , the first audio playback circuit 113 , and the first control circuit 114 , the first Bluetooth member device 110 also It includes a first wireless communication circuit 815 and a first trigger circuit 816 . Similarly, in addition to the aforementioned second Bluetooth communication circuit 121, second audio processing circuit 122, second audio playback circuit 123, and second control circuit 124, the second Bluetooth member device 120 further includes a second wireless communication circuit 825 and a second trigger circuit 826 .

在第一藍牙成員裝置110中，第一無線通信電路815耦接於第一控制電路114，並設置成可在第一控制電路114的控制之下，利用除了藍牙通信方式以外的各種無線存取技術（Radio Access Technology，RAT），與主控裝置660進行各種資料和/或指令通信。第一觸發電路816耦接於第一控制電路114，並設置成可依據使用者的簡單操作而產生一相對應的使用者觸發信號。第一控制電路114可在第一觸發電路816產生使用者觸發信號時，產生一音量調整請求VAR，並利用第一無線通信電路815傳送音量調整請求VAR給主控裝置660。In the first Bluetooth member device 110 , the first wireless communication circuit 815 is coupled to the first control circuit 114 , and is configured to be able to use various wireless access methods other than Bluetooth communication under the control of the first control circuit 114 . technology (Radio Access Technology, RAT) to communicate various data and/or instructions with the main control device 660 . The first trigger circuit 816 is coupled to the first control circuit 114 and configured to generate a corresponding user trigger signal according to a simple operation of the user. The first control circuit 114 can generate a volume adjustment request VAR when the first trigger circuit 816 generates a user trigger signal, and use the first wireless communication circuit 815 to transmit the volume adjustment request VAR to the main control device 660 .

前述的無線存取技術，可以是各種紅外線信號傳輸技術、近場通信（near field communication，NFC）技術、第二代（2nd Generation，2G）行動通信技術、各種第三代（3rd Generation，3G）行動通信技術、各種***（4th Generation，4G）行動通信技術、各種第五代（5th Generation，5G）行動通信技術、各種IEEE 802.11系列規範的無線網路通信技術、各種物聯網（Internet-of-Thing，IoT）通信技術、各種窄帶物聯網（Narrow Band Internet of Thing，NB-IoT）通信技術、各種車際（Vehicle-to-Vehicle）通信技術、各種車聯網（Vehicle-to-Everything，V2X）通信技術、各種衛星通信技術、或是由其他標準制定組織所發布的各種無線通信技術等。The aforementioned wireless access technologies may be various infrared signal transmission technologies, near field communication (NFC) technologies, 2nd Generation (2G) mobile communication technologies, and various 3rd Generation (3G) technologies. Mobile communication technologies, various 4th Generation (4G) mobile communication technologies, various 5th Generation (5G) mobile communication technologies, various IEEE 802.11 series specifications of wireless network communication technologies, various Internet of Things (Internet- of-Thing, IoT) communication technologies, various Narrow Band Internet of Things (NB-IoT) communication technologies, various Vehicle-to-Vehicle (Vehicle-to-Vehicle) communication technologies, various Vehicle-to-Everything, V2X) communication technology, various satellite communication technologies, or various wireless communication technologies released by other standard-setting organizations.

在第二藍牙成員裝置120中，第二無線通信電路825耦接於第二控制電路124，並設置成可在第二控制電路124的控制之下，利用除了藍牙通信方式以外的前述各種無線存取技術（RAT），與主控裝置660進行各種資料和/或指令通信。第二觸發電路826耦接於第二控制電路124，並設置成可依據使用者的簡單操作而產生一相對應的使用者觸發信號。第二控制電路124可在第二觸發電路826產生使用者觸發信號時，產生一音量調整請求VAR，並利用第二無線通信電路825傳送音量調整請求VAR給主控裝置660。In the second Bluetooth member device 120, the second wireless communication circuit 825 is coupled to the second control circuit 124, and is configured to be able to use the aforementioned various wireless storage modes other than the Bluetooth communication method under the control of the second control circuit 124. Receive technology (RAT) to communicate various data and/or instructions with the main control device 660 . The second trigger circuit 826 is coupled to the second control circuit 124 and configured to generate a corresponding user trigger signal according to a simple operation of the user. The second control circuit 124 can generate a volume adjustment request VAR when the second trigger circuit 826 generates a user trigger signal, and use the second wireless communication circuit 825 to transmit the volume adjustment request VAR to the main control device 660 .

實作上，前述的第一無線通信電路815及第二無線通信電路825，皆可利用支援前述的一或多種無線存取技術的各種合適電路或晶片來實現，例如，紅外線信號傳輸電路、近場通信電路、網路卡（Network Interface Card，NIC）、無線傳輸（Wi-Fi）電路、行動通信電路、衛星通信電路、物聯網通信電路等等。第一無線通信電路815可與第一藍牙成員裝置110中的其他功能方塊（例如，第一藍牙通信電路111）整合在一起。同樣地，第二無線通信電路825可與第二藍牙成員裝置120中的其他功能方塊（例如，第二藍牙通信電路121）整合在一起。In practice, the aforementioned first wireless communication circuit 815 and the second wireless communication circuit 825 can be implemented by various suitable circuits or chips that support one or more of the aforementioned wireless access technologies, such as an infrared signal transmission circuit, a near- Field communication circuit, network interface card (NIC), wireless transmission (Wi-Fi) circuit, mobile communication circuit, satellite communication circuit, Internet of things communication circuit, etc. The first wireless communication circuit 815 may be integrated with other functional blocks in the first Bluetooth member device 110 (eg, the first Bluetooth communication circuit 111 ). Likewise, the second wireless communication circuit 825 may be integrated with other functional blocks in the second Bluetooth member device 120 (eg, the second Bluetooth communication circuit 121 ).

前述的第一觸發電路816及第二觸發電路826，皆可用各種可依據使用者的簡單操作而產生相對應的使用者觸發信號的裝置來實現，例如，各種觸控電路、按鈕、開關、遙控器、觸控螢幕、聲控裝置、手勢感應裝置、陀螺儀、採用其他觸發信號産生技術的電路、或前揭各種裝置的組合。第一觸發電路816可設置於第一藍牙成員裝置110的外部，也可與第一藍牙成員裝置110中的其他功能方塊整合在一起。相仿地，第二觸發電路826可設置於第二藍牙成員裝置120的外部，也可與第二藍牙成員裝置120中的其他功能方塊整合在一起。The aforementioned first trigger circuit 816 and second trigger circuit 826 can be implemented by various devices that can generate corresponding user trigger signals according to the simple operation of the user, such as various touch circuits, buttons, switches, remote controls, etc. devices, touch screens, voice-activated devices, gesture-sensing devices, gyroscopes, circuits using other trigger signal generation techniques, or a combination of various devices. The first trigger circuit 816 may be disposed outside the first Bluetooth member device 110 , or may be integrated with other functional blocks in the first Bluetooth member device 110 . Similarly, the second trigger circuit 826 can be disposed outside the second Bluetooth member device 120 , and can also be integrated with other functional blocks in the second Bluetooth member device 120 .

藍牙音訊廣播系統300中的其他藍牙成員裝置，可比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的架構，設置相應的觸發電路及無線通信電路。Other Bluetooth member devices in the Bluetooth audio broadcasting system 300 can be configured with corresponding trigger circuits and wireless communication circuits by referring to the structure of the aforementioned first Bluetooth member device 110 or the second Bluetooth member device 120 .

在圖8的實施例中，藍牙音訊廣播系統300中的多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140），可共同組成一個多成員藍牙裝置，例如，一組多聲道藍牙喇叭。In the embodiment of FIG. 8 , a plurality of Bluetooth member devices in the Bluetooth audio broadcasting system 300 (eg, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , third Bluetooth member device 130 , and fourth Bluetooth member device 130 ) The member devices 140) can collectively form a multi-member Bluetooth device, for example, a set of multi-channel Bluetooth speakers.

在運作時，藍牙音訊廣播系統300同樣可採用前述圖4的方式來對前述的多成員藍牙裝置進行音訊廣播。During operation, the Bluetooth audio broadcasting system 300 can also use the method shown in FIG. 4 to perform audio broadcasting to the aforementioned multi-member Bluetooth devices.

另外，在音訊廣播裝置150進行音訊廣播的過程中（亦即，在音訊廣播裝置150重複進行圖4的流程222及流程224的過程中），倘若前述的多成員藍牙裝置的使用者想要調整所有藍牙成員裝置的音量大小，則使用者可對第一藍牙成員裝置110的第一觸發電路816進行特定的操作，以致使第一觸發電路816產生並傳送一使用者觸發信號給第一控制電路114。或者，使用者也可對第二藍牙成員裝置120的第二觸發電路826進行特定的操作，以致使第二觸發電路826產生並傳送一使用者觸發信號給第二控制電路124。In addition, during the process of audio broadcasting by the audio broadcasting device 150 (that is, during the process in which the audio broadcasting device 150 repeatedly performs the process 222 and the process 224 in FIG. 4 ), if the user of the aforementioned multi-member Bluetooth device wants to adjust the The volume of all the Bluetooth member devices, the user can perform a specific operation on the first trigger circuit 816 of the first Bluetooth member device 110, so that the first trigger circuit 816 generates and transmits a user trigger signal to the first control circuit. 114. Alternatively, the user can also perform specific operations on the second trigger circuit 826 of the second Bluetooth member device 120 , so that the second trigger circuit 826 generates and transmits a user trigger signal to the second control circuit 124 .

倘若使用者是對第一觸發電路816進行特定的操作，則第一控制電路114可依據第一觸發電路816產生的使用者觸發信號產生一音量調整請求VAR，並利用第一無線通信電路815傳送音量調整請求VAR給主控裝置660的通信電路661。同樣地，倘若使用者是對第二觸發電路826進行特定的操作，則第二控制電路124可依據第二觸發電路826產生的使用者觸發信號產生一音量調整請求VAR，並利用第二無線通信電路825傳送音量調整請求VAR給主控裝置660的通信電路661。If the user performs a specific operation on the first trigger circuit 816 , the first control circuit 114 can generate a volume adjustment request VAR according to the user trigger signal generated by the first trigger circuit 816 , and transmit it through the first wireless communication circuit 815 . The volume adjustment request VAR is sent to the communication circuit 661 of the master device 660 . Similarly, if the user performs a specific operation on the second trigger circuit 826, the second control circuit 124 can generate a volume adjustment request VAR according to the user trigger signal generated by the second trigger circuit 826, and use the second wireless communication The circuit 825 transmits the volume adjustment request VAR to the communication circuit 661 of the master device 660 .

在圖8的實施例中，當主控裝置660的通信電路661接收到第一藍牙成員裝置110或第二藍牙成員裝置120傳來的音量調整請求VAR時，處理電路665會產生一音量調整信號VAS，並利用通信電路661傳送音量調整信號VAS給音訊廣播裝置150。In the embodiment of FIG. 8 , when the communication circuit 661 of the master device 660 receives the volume adjustment request VAR from the first Bluetooth member device 110 or the second Bluetooth member device 120 , the processing circuit 665 generates a volume adjustment signal The VAS, and the communication circuit 661 is used to transmit the volume adjustment signal VAS to the audio broadcasting device 150 .

同樣地，圖8中的音訊廣播裝置150可依據主控裝置660產生的音量調整信號VAS，進行前述圖5中的流程502與流程504，以指示藍牙音訊廣播系統300中的多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）同步調整音量大小。Similarly, the audio broadcasting device 150 in FIG. 8 can perform the above-mentioned process 502 and process 504 in FIG. 5 according to the volume adjustment signal VAS generated by the main control device 660 to indicate a plurality of Bluetooth member devices in the Bluetooth audio broadcasting system 300 (For example, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , third Bluetooth member device 130 , and fourth Bluetooth member device 140 ) adjust the volume synchronously.

例如，在第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140播放音訊廣播裝置150所廣播的音訊資料的過程中，主控裝置660可根據任一藍牙成員裝置（例如，前述的第一藍牙成員裝置110或第二藍牙成員裝置120）傳來的音量調整請求VAR，指示音訊廣播裝置150廣播一音量調整指示給第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140，以同步調整第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140的音量大小。For example, when the first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 play the audio data broadcast by the audio broadcasting device 150 , the master device 660 may According to the volume adjustment request VAR from any Bluetooth member device (eg, the aforementioned first Bluetooth member device 110 or the second Bluetooth member device 120 ), the audio broadcasting device 150 is instructed to broadcast a volume adjustment instruction to the first Bluetooth member device 110 , the second bluetooth member device 120, the third bluetooth member device 130, and the fourth bluetooth member device 140 to synchronously adjust the first bluetooth member device 110, the second bluetooth member device 120, the third bluetooth member device 130, and the fourth bluetooth member device The volume level of the Bluetooth member device 140.

換言之，圖8中的藍牙音訊廣播系統300同樣允許使用者同步調整藍牙音訊廣播系統300中的所有藍牙成員裝置的音量大小。In other words, the Bluetooth audio broadcasting system 300 in FIG. 8 also allows the user to adjust the volume of all the Bluetooth member devices in the Bluetooth audio broadcasting system 300 synchronously.

前述有關圖3、圖6、或圖7中的相關電路與裝置的實施方式及連接方式的描述，亦適用於圖8的藍牙音訊廣播系統300中。前述有關圖4與圖5的運作方式的描述，亦適用於圖8的藍牙音訊廣播系統300中。為簡潔起見，在此不重複敘述。The foregoing descriptions about the implementations and connection methods of the related circuits and devices in FIG. 3 , FIG. 6 , or FIG. 7 are also applicable to the Bluetooth audio broadcasting system 300 in FIG. 8 . The foregoing descriptions about the operation of FIG. 4 and FIG. 5 are also applicable to the Bluetooth audio broadcasting system 300 of FIG. 8 . For brevity, the description is not repeated here.

由前述說明可知，在藍牙音訊廣播系統300中，第一藍牙成員裝置110可利用第一無線通信電路815傳送音量調整請求VAR給主控裝置660，而第二藍牙成員裝置120則可利用第二無線通信電路825傳送音量調整請求VAR給主控裝置660。但這只是一示例性的實施例，並非侷限本發明之實際實施方式。實作上，第一藍牙成員裝置110或第二藍牙成員裝置120可改用其他方式傳送音量調整請求VAR給主控裝置660。As can be seen from the foregoing description, in the Bluetooth audio broadcasting system 300, the first Bluetooth member device 110 can use the first wireless communication circuit 815 to transmit the volume adjustment request VAR to the master device 660, and the second Bluetooth member device 120 can use the second Bluetooth member device 120. The wireless communication circuit 825 transmits the volume adjustment request VAR to the master device 660 . However, this is only an exemplary embodiment, and does not limit the actual implementation of the present invention. In practice, the first Bluetooth member device 110 or the second Bluetooth member device 120 may use other methods to transmit the volume adjustment request VAR to the master device 660 .

例如，在另一實施例中，第一藍牙成員裝置110可利用第一藍牙通信電路111傳送音量調整請求VAR給主控裝置660，而第二藍牙成員裝置120則可利用第一藍牙通信電路111傳送音量調整請求VAR給主控裝置660。在此情況下，則可將前述的第一無線通信電路815和/或第二無線通信電路825省略。For example, in another embodiment, the first Bluetooth member device 110 can use the first Bluetooth communication circuit 111 to transmit the volume adjustment request VAR to the master device 660 , and the second Bluetooth member device 120 can use the first Bluetooth communication circuit 111 The volume adjustment request VAR is transmitted to the main control device 660 . In this case, the aforementioned first wireless communication circuit 815 and/or the second wireless communication circuit 825 can be omitted.

另外，在某些實施例中，亦可將圖8的第二藍牙成員裝置120中的第二觸發電路826省略。In addition, in some embodiments, the second trigger circuit 826 in the second Bluetooth member device 120 of FIG. 8 may also be omitted.

請參考圖9，其所繪示為本發明一第六實施例的藍牙音訊廣播系統300簡化後的功能方塊圖。類似於圖8中的藍牙音訊廣播系統300，圖9中的藍牙音訊廣播系統300同樣包含了音訊廣播裝置150以及多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140），但圖9中的藍牙音訊廣播系統300省略了前述的主控裝置660。Please refer to FIG. 9 , which is a simplified functional block diagram of a Bluetooth audio broadcasting system 300 according to a sixth embodiment of the present invention. Similar to the Bluetooth audio broadcasting system 300 in FIG. 8 , the Bluetooth audio broadcasting system 300 in FIG. 9 also includes an audio broadcasting device 150 and a plurality of Bluetooth member devices (eg, the aforementioned first Bluetooth member device 110 , second Bluetooth member device device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 ), but the Bluetooth audio broadcasting system 300 in FIG. 9 omits the aforementioned master device 660 .

另外，與前述圖8的實施例略有不同，圖9的藍牙音訊廣播系統300中的部分或全部藍牙成員裝置，還包含有一觸發電路，但省略了前述的無線通信電路。例如，在圖9的實施例中，第一藍牙成員裝置110包含前述的第一藍牙通信電路111、第一音訊處理電路112、第一音訊播放電路113、第一控制電路114、以及第一觸發電路816，但省略了第一無線通信電路815。相仿地，第二藍牙成員裝置120包含前述的第二藍牙通信電路121、第二音訊處理電路122、第二音訊播放電路123、第二控制電路124、以及第二觸發電路826，但省略了第二無線通信電路825。In addition, slightly different from the aforementioned embodiment of FIG. 8 , some or all of the Bluetooth member devices in the Bluetooth audio broadcasting system 300 of FIG. 9 further include a trigger circuit, but the aforementioned wireless communication circuit is omitted. For example, in the embodiment of FIG. 9 , the first Bluetooth member device 110 includes the aforementioned first Bluetooth communication circuit 111 , the first audio processing circuit 112 , the first audio playback circuit 113 , the first control circuit 114 , and the first trigger circuit 816, but the first wireless communication circuit 815 is omitted. Similarly, the second Bluetooth member device 120 includes the aforementioned second Bluetooth communication circuit 121 , the second audio processing circuit 122 , the second audio playback circuit 123 , the second control circuit 124 , and the second trigger circuit 826 , but the second Bluetooth communication circuit 121 is omitted. Two wireless communication circuits 825 .

圖9的藍牙音訊廣播系統300中的其他藍牙成員裝置，可比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的架構，設置相應的觸發電路。For other Bluetooth member devices in the Bluetooth audio broadcasting system 300 of FIG. 9 , corresponding trigger circuits may be set according to the structure of the first Bluetooth member device 110 or the second Bluetooth member device 120 described above.

在圖9的實施例中，藍牙音訊廣播系統300中的多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140），可共同組成一個多成員藍牙裝置，例如，一組多聲道藍牙喇叭。In the embodiment of FIG. 9 , a plurality of Bluetooth member devices in the Bluetooth audio broadcasting system 300 (eg, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , third Bluetooth member device 130 , and fourth Bluetooth member device 130 ) The member devices 140) can collectively form a multi-member Bluetooth device, for example, a set of multi-channel Bluetooth speakers.

在運作時，圖9中的藍牙音訊廣播系統300同樣可採用前述圖4的方式來對前述的多成員藍牙裝置進行音訊廣播。During operation, the Bluetooth audio broadcasting system 300 in FIG. 9 can also use the method of FIG. 4 to perform audio broadcasting to the aforementioned multi-member Bluetooth devices.

另外，在音訊廣播裝置150進行音訊廣播的過程中（亦即，在音訊廣播裝置150重複進行圖4的流程222及流程224的過程中），倘若前述的多成員藍牙裝置的使用者想要調整所有藍牙成員裝置的音量大小，則使用者可對第一藍牙成員裝置110的第一觸發電路816進行特定的操作，以致使第一觸發電路816產生並傳送一使用者觸發信號給第一控制電路114。或者，使用者也可對第二藍牙成員裝置120的第二觸發電路826進行特定的操作，以致使第二觸發電路826產生並傳送一使用者觸發信號給第二控制電路124。In addition, during the process of audio broadcasting by the audio broadcasting device 150 (that is, during the process in which the audio broadcasting device 150 repeatedly performs the process 222 and the process 224 in FIG. 4 ), if the user of the aforementioned multi-member Bluetooth device wants to adjust the The volume of all the Bluetooth member devices, the user can perform a specific operation on the first trigger circuit 816 of the first Bluetooth member device 110, so that the first trigger circuit 816 generates and transmits a user trigger signal to the first control circuit. 114. Alternatively, the user can also perform specific operations on the second trigger circuit 826 of the second Bluetooth member device 120 , so that the second trigger circuit 826 generates and transmits a user trigger signal to the second control circuit 124 .

在圖9的實施例中，倘若使用者是對第一觸發電路816進行特定的操作，則第一控制電路114可依據第一觸發電路816產生的使用者觸發信號產生一音量調整信號VAS，並利用第一藍牙通信電路111傳送音量調整信號VAS給音訊廣播裝置150。同樣地，倘若使用者是對第二觸發電路826進行特定的操作，則第二控制電路124可依據第二觸發電路826產生的使用者觸發信號產生一音量調整信號VAS，並利用第二藍牙通信電路121傳送音量調整信號VAS給音訊廣播裝置150。In the embodiment of FIG. 9 , if the user performs a specific operation on the first trigger circuit 816 , the first control circuit 114 can generate a volume adjustment signal VAS according to the user trigger signal generated by the first trigger circuit 816 , and The first Bluetooth communication circuit 111 is used to transmit the volume adjustment signal VAS to the audio broadcasting device 150 . Similarly, if the user performs a specific operation on the second trigger circuit 826, the second control circuit 124 can generate a volume adjustment signal VAS according to the user trigger signal generated by the second trigger circuit 826, and use the second Bluetooth communication The circuit 121 transmits the volume adjustment signal VAS to the audio broadcasting device 150 .

當圖9中的音訊廣播裝置150接收到第一藍牙成員裝置110或第二藍牙成員裝置120傳來的音量調整信號VAS時，音訊廣播裝置150可進行前述圖5中的流程502與流程504，以指示藍牙音訊廣播系統300中的多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）同步調整音量大小。When the audio broadcasting device 150 in FIG. 9 receives the volume adjustment signal VAS from the first Bluetooth member device 110 or the second Bluetooth member device 120, the audio broadcasting device 150 can perform the process 502 and the process 504 in the aforementioned FIG. 5 , To instruct multiple Bluetooth member devices in the Bluetooth audio broadcasting system 300 (eg, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , third Bluetooth member device 130 , and fourth Bluetooth member device 140 ) to synchronize adjustment volume.

例如，在第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140播放音訊廣播裝置150所廣播的音訊資料的過程中，音訊廣播裝置150可根據任一藍牙成員裝置（例如，前述的第一藍牙成員裝置110或第二藍牙成員裝置120）傳來的音量調整信號VAS，產生並廣播一音量調整指示給第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140，以同步調整第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140的音量大小。For example, when the first Bluetooth member device 110 , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 play the audio data broadcast by the audio broadcasting device 150 , the audio broadcasting device 150 may According to the volume adjustment signal VAS transmitted from any Bluetooth member device (eg, the aforementioned first Bluetooth member device 110 or the second Bluetooth member device 120 ), a volume adjustment instruction is generated and broadcast to the first Bluetooth member device 110 , the second Bluetooth member device 110 , and the second Bluetooth member device 120 . The bluetooth member device 120, the third bluetooth member device 130, and the fourth bluetooth member device 140 to synchronously adjust the first bluetooth member device 110, the second bluetooth member device 120, the third bluetooth member device 130, and the fourth bluetooth member device 140 volume level.

換言之，圖9中的藍牙音訊廣播系統300同樣允許使用者同步調整藍牙音訊廣播系統300中的所有藍牙成員裝置的音量大小。In other words, the Bluetooth audio broadcasting system 300 in FIG. 9 also allows the user to adjust the volume of all Bluetooth member devices in the Bluetooth audio broadcasting system 300 synchronously.

前述有關圖3、圖6、圖7、或圖8中的相關電路與裝置的實施方式及連接方式的描述，亦適用於圖9的藍牙音訊廣播系統300中。前述有關圖4與圖5的運作方式的描述，亦適用於圖9的藍牙音訊廣播系統300中。為簡潔起見，在此不重複敘述。The foregoing descriptions about the implementations and connection methods of the related circuits and devices in FIG. 3 , FIG. 6 , FIG. 7 , or FIG. 8 are also applicable to the Bluetooth audio broadcasting system 300 in FIG. 9 . The foregoing description about the operation of FIG. 4 and FIG. 5 is also applicable to the Bluetooth audio broadcasting system 300 of FIG. 9 . For brevity, the description is not repeated here.

在某些實施例中，亦可將圖9的第二藍牙成員裝置120中的第二觸發電路826省略。In some embodiments, the second trigger circuit 826 in the second Bluetooth member device 120 of FIG. 9 can also be omitted.

由前述圖4、圖5、圖8、及圖9的說明可知，在藍牙音訊廣播系統300中的多成員藍牙裝置開始播放音訊廣播裝置150傳來的預定音訊資料之前，第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示，分別將第一音訊播放電路113及第二音訊播放電路123的音量大小，調整成接近或等於前述的預定音量大小。4, 5, 8, and 9, it can be seen that before the multi-member Bluetooth device in the Bluetooth audio broadcasting system 300 starts to play the predetermined audio data transmitted from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member device 120 will first adjust the volume levels of the first audio playback circuit 113 and the second audio playback circuit 123 to be close to or equal to the aforementioned predetermined volume according to the predetermined volume indication from the audio broadcasting device 150. size.

因此，當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時，第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地，當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時，第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。Therefore, when the first Bluetooth member device 110 starts to use the first audio playback circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume output by the first audio playback circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcasting device 150, the volume of the second audio playback circuit 123 will be close to or equal to the aforementioned predetermined volume. size.

如此一來，第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小，就能讓使用者感到舒適，而不會造成使用者感到不適或不悅。In this way, when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously, the volume of the sound can make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

此外，由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小，已被預先設置成接近或等於前述的預定音量大小，所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播，也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。In addition, since the volume levels when the first audio playback circuit 113 and the second audio playback circuit 123 start playing the predetermined audio data synchronously have been preset to be close to or equal to the aforementioned predetermined volume levels, even if the audio broadcasting device 150 is using The audio broadcast can be started without the user's psychological expectation, and the problem of the user being frightened by the sudden loudness of the audio broadcast can also be avoided.

同樣地，藍牙音訊廣播系統300中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140），在開始播放音訊廣播裝置150傳來的預定音訊資料之前，就會先依據音訊廣播裝置150傳來的預定音量指示，分別將相關的音訊播放電路（圖中未繪示）的音量大小，調整成接近或等於前述的預定音量大小。因此，藍牙音訊廣播系統300中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小，也能讓使用者感到舒適，而不會造成使用者感到不適或不悅。Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 300 (eg, the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140 ), before starting to play the predetermined audio data transmitted from the audio broadcasting device 150 , First, according to the predetermined volume indication from the audio broadcasting device 150 , the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume. Therefore, the volume of the other Bluetooth member devices in the Bluetooth audio broadcasting system 300 when they start to play the predetermined audio data synchronously can also make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

另外，在藍牙音訊廣播系統300中的多成員藍牙裝置播放音訊廣播裝置150所廣播的音訊資料的過程中，使用者還可對其中一個藍牙成員裝置的觸發電路進行簡單操作，以致使該藍牙成員裝置直接指示（或透過主控裝置660間接指示）音訊廣播裝置150廣播一音量調整指示給個別藍牙成員裝置，以同步調整個別藍牙成員裝置的音量大小。換言之，前述的藍牙音訊廣播系統300允許使用者同步調整藍牙音訊廣播系統300中的不同藍牙成員裝置的音量大小。In addition, during the multi-member Bluetooth device in the Bluetooth audio broadcasting system 300 playing the audio data broadcasted by the audio broadcasting device 150, the user can also simply operate the trigger circuit of one of the Bluetooth member devices, so that the Bluetooth member The device directly instructs (or indirectly through the main control device 660) the audio broadcasting device 150 to broadcast a volume adjustment instruction to the individual Bluetooth member devices, so as to adjust the volume of the individual Bluetooth member devices synchronously. In other words, the aforementioned Bluetooth audio broadcasting system 300 allows the user to adjust the volume of different Bluetooth member devices in the Bluetooth audio broadcasting system 300 synchronously.

再者，藍牙音訊廣播系統300是採用BLE音訊技術來進行音訊廣播，而且音訊廣播裝置150可採用低複雜度通信編解碼器（LC3）對預定音訊資料進行編碼。因此，相較於傳統的音訊廣播方式而言，藍牙音訊廣播系統300所採用的前述音訊廣播方法，不僅可降低多成員藍牙裝置的耗電量，進而延長多成員藍牙裝置的使用時間，還能有效提升音訊廣播的整體音訊品質。Furthermore, the Bluetooth audio broadcasting system 300 uses the BLE audio technology to perform audio broadcasting, and the audio broadcasting device 150 can use the low-complexity communication codec (LC3) to encode the predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting system 300 can not only reduce the power consumption of the multi-member Bluetooth device, thereby prolong the use time of the multi-member Bluetooth device, but also can reduce the power consumption of the multi-member Bluetooth device. Effectively improve the overall audio quality of audio broadcasting.

請參考圖10，其所繪示為本發明一第七實施例的藍牙音訊廣播系統400簡化後的功能方塊圖。Please refer to FIG. 10 , which is a simplified functional block diagram of a Bluetooth audio broadcasting system 400 according to a seventh embodiment of the present invention.

在圖10的實施例中，藍牙音訊廣播系統400包含了音訊廣播裝置150、多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）、以及一或多個主控裝置。為了方便說明起見，在圖10的實施例中僅繪示兩個示例性的主控裝置，分別是一主控裝置1060以及一主控裝置1070。In the embodiment of FIG. 10 , the Bluetooth audio broadcasting system 400 includes an audio broadcasting device 150 , a plurality of Bluetooth member devices (eg, the aforementioned first Bluetooth member device 110 , second Bluetooth member device 120 , and third Bluetooth member device 130 ) , and a fourth Bluetooth member device 140 ), and one or more master devices. For the convenience of description, only two exemplary main control devices are shown in the embodiment of FIG. 10 , namely, a main control device 1060 and a main control device 1070 .

在藍牙音訊廣播系統400中，主控裝置1060設置成可根據使用者的操作或指令，指示藍牙音訊廣播系統400中的多個藍牙成員裝置同步調整音量大小。In the Bluetooth audio broadcasting system 400, the main control device 1060 is configured to instruct the plurality of Bluetooth member devices in the Bluetooth audio broadcasting system 400 to synchronously adjust the volume according to the user's operation or instruction.

如圖10所示，主控裝置1060包含一通信電路1061、一輸入電路1063、以及一處理電路1065。通信電路1061設置成可利用各種有線或無線傳輸方式，與藍牙音訊廣播系統400中的多個藍牙成員裝置進行各種資料與指令通信。輸入電路1063設置成允許主控裝置1060的使用者對主控裝置1060進行各種操作，例如，輸入指令、設定音量調整方向、或是設定音量調整量等等。處理電路1065耦接於通信電路1061及輸入電路1063，並設置成可依據使用者對輸入電路1063的操作，產生一音量調整指示，並可利用通信電路1061將音量調整指示傳送給藍牙音訊廣播系統400中的多個藍牙成員裝置。As shown in FIG. 10 , the main control device 1060 includes a communication circuit 1061 , an input circuit 1063 , and a processing circuit 1065 . The communication circuit 1061 is configured to use various wired or wireless transmission methods to communicate various data and commands with a plurality of Bluetooth member devices in the Bluetooth audio broadcasting system 400 . The input circuit 1063 is configured to allow the user of the main control device 1060 to perform various operations on the main control device 1060, such as inputting commands, setting the volume adjustment direction, or setting the volume adjustment amount, and the like. The processing circuit 1065 is coupled to the communication circuit 1061 and the input circuit 1063, and is configured to generate a volume adjustment instruction according to the user's operation on the input circuit 1063, and can use the communication circuit 1061 to transmit the volume adjustment instruction to the Bluetooth audio broadcasting system Multiple Bluetooth member devices in 400.

另外，在圖10的實施例中，第一藍牙成員裝置110包含有前述的第一藍牙通信電路111、第一音訊處理電路112、第一音訊播放電路113、第一控制電路114、以及第一無線通信電路815。相仿地，第二藍牙成員裝置120包含有前述的第二藍牙通信電路121、第二音訊處理電路122、第二音訊播放電路123、第二控制電路124、以及第二無線通信電路825。In addition, in the embodiment of FIG. 10 , the first Bluetooth member device 110 includes the aforementioned first Bluetooth communication circuit 111 , the first audio processing circuit 112 , the first audio playback circuit 113 , the first control circuit 114 , and the first Wireless communication circuit 815. Similarly, the second Bluetooth member device 120 includes the aforementioned second Bluetooth communication circuit 121 , the second audio processing circuit 122 , the second audio playback circuit 123 , the second control circuit 124 , and the second wireless communication circuit 825 .

與前述圖8的實施例類似，圖10中的第一無線通信電路815耦接於第一控制電路114，並設置成可在第一控制電路114的控制之下，利用除了藍牙通信方式以外的各種無線存取技術（RAT），與主控裝置1060的通信電路1061進行各種資料和/或指令通信。同樣地，第二無線通信電路825耦接於第二控制電路124，並設置成可在第二控制電路124的控制之下，利用除了藍牙通信方式以外的各種無線存取技術，與主控裝置1060的通信電路1061進行各種資料和/或指令通信。Similar to the aforementioned embodiment of FIG. 8 , the first wireless communication circuit 815 in FIG. 10 is coupled to the first control circuit 114 , and is configured to be able to use a communication method other than the Bluetooth communication method under the control of the first control circuit 114 . Various radio access technologies (RATs) are used to communicate various data and/or commands with the communication circuit 1061 of the master device 1060 . Similarly, the second wireless communication circuit 825 is coupled to the second control circuit 124, and is configured to be able to communicate with the master device under the control of the second control circuit 124 using various wireless access technologies other than Bluetooth communication. The communication circuit 1061 of 1060 communicates various data and/or instructions.

以下將搭配圖11來進一步說明藍牙音訊廣播系統400的運作方式。圖11為本發明一第三實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。The operation of the Bluetooth audio broadcasting system 400 will be further described below with reference to FIG. 11 . FIG. 11 is a simplified flowchart of a method for performing audio broadcasting using the BLE audio technology according to a third embodiment of the present invention.

當使用者想要利用藍牙音訊廣播系統400中的第一藍牙成員裝置110與第二藍牙成員裝置120接收音訊廣播時，第一藍牙成員裝置110及第二藍牙成員裝置120可進行圖11中的流程1102。在本實施例中，第一藍牙成員裝置110在流程1102中的運作方式，與在前述圖2中的流程202實質相同，而第二藍牙成員裝置120在流程1102中的運作方式，則與在圖2中的流程204實質相同。When the user wants to use the first Bluetooth member device 110 and the second Bluetooth member device 120 in the Bluetooth audio broadcast system 400 to receive audio broadcasts, the first Bluetooth member device 110 and the second Bluetooth member device 120 can perform the process shown in FIG. 11 . Process 1102. In this embodiment, the operation of the first Bluetooth member device 110 in the process 1102 is substantially the same as the process 202 in the aforementioned FIG. 2 , and the operation of the second Bluetooth member device 120 in the process 1102 is the same as that in Process 204 in FIG. 2 is substantially the same.

如圖11所示，當音訊廣播裝置150需要進行音訊廣播時，可進行圖11中的流程206至流程210。音訊廣播裝置150在圖11中的流程206至流程210的運作方式，都跟前述圖2中的相應流程相同。亦即，音訊廣播裝置150可將與一預定音量大小相對應的一預定音量指示，***一或多個預定資料項目中。另外，音訊廣播裝置150可在預定傳送模式下，將前述的一或多個預定資料項目傳送出去，以使得藍牙音訊廣播系統400中的多個藍牙成員裝置（例如，第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140），能夠接收到前述的一或多個預定資料項目。As shown in FIG. 11 , when the audio broadcasting apparatus 150 needs to perform audio broadcasting, the process 206 to the process 210 in FIG. 11 may be performed. The operations of the audio broadcast apparatus 150 in the process 206 to the process 210 in FIG. 11 are the same as the corresponding processes in the aforementioned FIG. 2 . That is, the audio broadcasting device 150 can insert a predetermined volume indication corresponding to a predetermined volume level into one or more predetermined data items. In addition, the audio broadcast device 150 can transmit the aforementioned one or more predetermined data items in a predetermined transmission mode, so that a plurality of Bluetooth member devices in the Bluetooth audio broadcast system 400 (eg, the first Bluetooth member device 110 , The second Bluetooth member device 120, the third Bluetooth member device 130, and the fourth Bluetooth member device 140) can receive the aforementioned one or more predetermined data items.

接著，第一藍牙成員裝置110及第二藍牙成員裝置120可進行圖11中的流程1112及流程1114。在本實施例中，第一藍牙成員裝置110在流程1112及流程1114中的運作方式，分別與前述圖2中的流程212及流程214實質相同，而第二藍牙成員裝置120在流程1112及流程1114中的運作方式，則分別與前述圖2中的流程212及流程218實質相同。Next, the first Bluetooth member device 110 and the second Bluetooth member device 120 may perform the process 1112 and the process 1114 in FIG. 11 . In this embodiment, the operations of the first Bluetooth member device 110 in the process 1112 and the process 1114 are substantially the same as the process 212 and the process 214 in the aforementioned FIG. 2 , respectively, and the second Bluetooth member device 120 in the process 1112 and the process. The operation in 1114 is substantially the same as the above-mentioned process 212 and process 218 in FIG. 2 , respectively.

接著，第一藍牙成員裝置110及第二藍牙成員裝置120可進行圖11中的流程1116，以依據音訊廣播裝置150傳來的預定音量指示，設置相應音訊播放電路的增益值。在本實施例中，第一藍牙成員裝置110在流程1116中的運作方式，與前述圖2中的流程216實質相同，而第二藍牙成員裝置120在流程1116中的運作方式，則與前述圖2中的流程220實質相同。Next, the first Bluetooth member device 110 and the second Bluetooth member device 120 may perform the process 1116 in FIG. 11 to set the gain value of the corresponding audio playback circuit according to the predetermined volume indication from the audio broadcast device 150 . In this embodiment, the operation of the first Bluetooth member device 110 in the process 1116 is substantially the same as the process 216 in the aforementioned FIG. 2 , and the operation of the second Bluetooth member device 120 in the process 1116 is the same as the aforementioned FIG. 2 . The process 220 in 2 is substantially the same.

例如，第一控制電路114可在流程1116中依據預定音量指示，控制第一音訊處理電路112設置第一音訊播放電路113的增益值，以將第一音訊播放電路113的音量大小，預先調整成接近或等於前述的預定音量大小。同樣地，第二控制電路124可在流程1116中依據預定音量指示，控制第二音訊處理電路122設置第二音訊播放電路123的增益值，以將第二音訊播放電路123的音量大小，預先調整成接近或等於前述的預定音量大小。For example, the first control circuit 114 can control the first audio processing circuit 112 to set the gain value of the first audio playback circuit 113 according to the predetermined volume indication in the process 1116, so as to pre-adjust the volume of the first audio playback circuit 113 to Close to or equal to the aforementioned predetermined volume level. Similarly, the second control circuit 124 can control the second audio processing circuit 122 to set the gain value of the second audio playback circuit 123 according to the predetermined volume indication in the process 1116, so as to pre-adjust the volume of the second audio playback circuit 123 to be close to or equal to the aforementioned predetermined volume level.

換言之，在本實施例中，第一藍牙成員裝置110及第二藍牙成員裝置120在播放音訊廣播裝置150傳來的音訊資料之前，就會先依據音訊廣播裝置150傳來的預定音量指示，分別將第一音訊播放電路113及第二音訊播放電路123的音量大小，調整成接近或等於前述的預定音量大小。In other words, in this embodiment, before the first Bluetooth member device 110 and the second Bluetooth member device 120 play the audio data transmitted from the audio broadcast device 150 , respectively, according to the predetermined volume instruction transmitted from the audio broadcast device 150 , respectively. The volume levels of the first audio playback circuit 113 and the second audio playback circuit 123 are adjusted to be close to or equal to the aforementioned predetermined volume levels.

如圖11所示，音訊廣播裝置150在進行流程210之後，還會進行流程222及流程224。另一方面，第一藍牙成員裝置110及第二藍牙成員裝置120則可進行圖11中的流程1126、流程1128、及流程1130。在本實施例中，第一藍牙成員裝置110在流程1126、流程1128、及流程1130中的運作方式，分別與前述圖2中的流程226、流程228、及流程230實質相同，而第二藍牙成員裝置120在流程1126、流程1128、及流程1130中的運作方式，則分別與前述圖2中的流程226、流程232、及流程234實質相同。As shown in FIG. 11 , after the audio broadcasting apparatus 150 performs the process 210 , the process 222 and the process 224 are further performed. On the other hand, the first Bluetooth member device 110 and the second Bluetooth member device 120 can perform the process 1126 , the process 1128 , and the process 1130 in FIG. 11 . In this embodiment, the operations of the first Bluetooth member device 110 in the process 1126 , the process 1128 , and the process 1130 are substantially the same as the process 226 , the process 228 , and the process 230 in FIG. 2 , respectively, and the second Bluetooth member device 110 The operations of the member device 120 in the process 1126 , the process 1128 , and the process 1130 are substantially the same as the process 226 , the process 232 , and the process 234 in FIG. 2 , respectively.

音訊廣播裝置150可重複進行圖11中的流程222及流程224以廣播後續的預定音訊資料。另一方面，第一藍牙成員裝置110及第二藍牙成員裝置120則可重複進行流程1126、流程1128、及流程1130以接收及播放後續的預定音訊資料。The audio broadcasting device 150 may repeat the process 222 and the process 224 in FIG. 11 to broadcast the subsequent predetermined audio data. On the other hand, the first Bluetooth member device 110 and the second Bluetooth member device 120 can repeat the process 1126 , the process 1128 , and the process 1130 to receive and play the subsequent predetermined audio data.

由前述說明可知，圖10中的音訊廣播裝置150同樣可採用藍牙核心規格5.2版本或較新的版本所規範的BLE音訊技術來廣播預定音訊資料。在運作時，音訊廣播裝置150可透過BIS邏輯傳輸通道，將包含預定音訊資料的低功耗藍牙音訊封包，向藍牙音訊廣播系統400中的多個藍牙成員裝置（例如，第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、以及第四藍牙成員裝置140）進行廣播。As can be seen from the foregoing description, the audio broadcasting device 150 in FIG. 10 can also use the BLE audio technology regulated by the Bluetooth Core Specification Version 5.2 or a newer version to broadcast predetermined audio data. During operation, the audio broadcasting device 150 can send the Bluetooth low energy audio packets containing predetermined audio data to a plurality of Bluetooth member devices (eg, the first Bluetooth member device 110 ) in the Bluetooth audio broadcasting system 400 through the BIS logical transmission channel. , the second Bluetooth member device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 ) to broadcast.

在圖10的音訊廣播裝置150進行音訊廣播的過程中（亦即，在音訊廣播裝置150重複進行圖11的流程222及流程224的過程中），倘若主控裝置1060的使用者想要調整多個藍牙成員裝置（例如，第一藍牙成員裝置110及第二藍牙成員裝置120）的音量大小，則使用者可對主控裝置1060的輸入電路1063進行特定的操作，例如，輸入指令、設定音量調整方向、或是設定音量調整量等等。在此情況下，處理電路1065可進行圖11中的流程1132。During the audio broadcasting process of the audio broadcasting device 150 of FIG. 10 (that is, during the process that the audio broadcasting device 150 repeatedly performs the process 222 and the process 224 of FIG. 11 ), if the user of the main control device 1060 wants to adjust the The volume of each Bluetooth member device (eg, the first Bluetooth member device 110 and the second Bluetooth member device 120 ), the user can perform specific operations on the input circuit 1063 of the master device 1060 , such as inputting commands, setting the volume Adjust the direction, or set the volume adjustment amount, etc. In this case, the processing circuit 1065 may perform the process 1132 in FIG. 11 .

在流程1132中，處理電路1065可依據使用者對輸入電路1063的操作，產生用來指示一音量調整方向（例如，調升或調降）的一音量調整指示，並可利用通信電路1061採用除了藍牙通信方式以外的各種無線存取技術（RAT），將音量調整指示傳送給第一藍牙成員裝置110的第一無線通信電路815、以及第二藍牙成員裝置120的第二無線通信電路825。In the process 1132, the processing circuit 1065 can generate a volume adjustment instruction for indicating a volume adjustment direction (eg, up or down) according to the user's operation on the input circuit 1063, and can use the communication circuit 1061 to use other than Various radio access technologies (RATs) other than Bluetooth communication methods transmit volume adjustment instructions to the first wireless communication circuit 815 of the first Bluetooth member device 110 and the second wireless communication circuit 825 of the second Bluetooth member device 120 .

在流程1134中，第一無線通信電路815以及第二無線通信電路825可接收主控裝置1060傳來的音量調整指示。In the process 1134 , the first wireless communication circuit 815 and the second wireless communication circuit 825 may receive the volume adjustment instruction from the master device 1060 .

接著，第一藍牙成員裝置110及第二藍牙成員裝置120可進行流程1136，以依據主控裝置1060傳來的音量調整指示，調整相應音訊播放電路的增益值。在本實施例中，第一藍牙成員裝置110在流程1136中的運作方式，與前述圖5中的流程510實質相同，而第二藍牙成員裝置120在流程1136中的運作方式，則與前述圖5中的流程514實質相同。Next, the first Bluetooth member device 110 and the second Bluetooth member device 120 may perform the process 1136 to adjust the gain value of the corresponding audio playback circuit according to the volume adjustment instruction sent from the master device 1060 . In this embodiment, the operation of the first Bluetooth member device 110 in the process 1136 is substantially the same as the process 510 in the aforementioned FIG. 5 , and the operation of the second Bluetooth member device 120 in the process 1136 is the same as the aforementioned FIG. 5 . Process 514 in 5 is substantially the same.

例如，第一控制電路114可在流程1136中，依據主控裝置1060傳來的音量調整指示，控制第一音訊處理電路112調整第一音訊播放電路113的增益值，以調整第一音訊播放電路113的音量大小。同樣地，第二控制電路124可在流程1136中，依據主控裝置1060傳來的音量調整指示，控制第二音訊處理電路122調整第二音訊播放電路123的增益值，以調整第二音訊播放電路123的音量大小。For example, in the process 1136, the first control circuit 114 can control the first audio processing circuit 112 to adjust the gain value of the first audio playback circuit 113 according to the volume adjustment instruction sent from the main control device 1060, so as to adjust the first audio playback circuit 113 volume level. Similarly, the second control circuit 124 can control the second audio processing circuit 122 to adjust the gain value of the second audio playback circuit 123 according to the volume adjustment instruction sent from the main control device 1060 in the process 1136 to adjust the second audio playback The volume of the circuit 123.

由於第一藍牙成員裝置110及第二藍牙成員裝置120都是依據主控裝置1060傳來的音量調整指示來調整音量大小，所以當第一音訊處理電路112調整第一音訊播放電路113的音量大小時，第二音訊處理電路122也會同步調整第二音訊播放電路123的音量大小。Since the first Bluetooth member device 110 and the second Bluetooth member device 120 both adjust the volume according to the volume adjustment instruction from the master device 1060 , when the first audio processing circuit 112 adjusts the volume of the first audio playback circuit 113 At the same time, the second audio processing circuit 122 also adjusts the volume of the second audio playing circuit 123 synchronously.

換言之，在第一藍牙成員裝置110及第二藍牙成員裝置120播放音訊廣播裝置150所廣播的音訊資料的過程中，主控裝置1060可根據使用者的操作或指令，產生並傳送一音量調整指示給第一藍牙成員裝置110及第二藍牙成員裝置120，以同步調整第一藍牙成員裝置110及第二藍牙成員裝置120的音量大小。In other words, when the first Bluetooth member device 110 and the second Bluetooth member device 120 play the audio data broadcasted by the audio broadcasting device 150, the master control device 1060 can generate and transmit a volume adjustment instruction according to the user's operation or instruction For the first Bluetooth member device 110 and the second Bluetooth member device 120 , the volume of the first Bluetooth member device 110 and the second Bluetooth member device 120 can be adjusted synchronously.

由前述說明可知，藍牙音訊廣播系統400允許使用者同步調整藍牙音訊廣播系統400中的相關藍牙成員裝置的音量大小。As can be seen from the foregoing description, the Bluetooth audio broadcasting system 400 allows the user to adjust the volume of the related Bluetooth member devices in the Bluetooth audio broadcasting system 400 synchronously.

在前述的藍牙音訊廣播系統400中，主控裝置1060的通信電路1061是採用除了藍牙通信方式以外的各種無線存取技術（RAT），將音量調整指示傳送給第一藍牙成員裝置110的第一無線通信電路815、以及第二藍牙成員裝置120的第二無線通信電路825。但這只是一示例性的實施例，並非侷限本發明之實際實施方式。實作上，主控裝置1060的通信電路1061可改用其他傳輸機制將音量調整指示傳送給第一藍牙成員裝置110及第二藍牙成員裝置120。In the aforementioned Bluetooth audio broadcasting system 400 , the communication circuit 1061 of the master device 1060 uses various radio access technologies (RATs) other than Bluetooth communication methods to transmit the volume adjustment instruction to the first Bluetooth member device 110 . The wireless communication circuit 815 , and the second wireless communication circuit 825 of the second Bluetooth member device 120 . However, this is only an exemplary embodiment, and does not limit the actual implementation of the present invention. In practice, the communication circuit 1061 of the master device 1060 can use other transmission mechanisms to transmit the volume adjustment instruction to the first Bluetooth member device 110 and the second Bluetooth member device 120 .

例如，在另一實施例中，主控裝置1060的通信電路1061可改用藍牙通信技術來傳送音量調整指示，以將音量調整指示傳送給第一藍牙成員裝置110的第一藍牙通信電路111、以及第二藍牙成員裝置120的第二藍牙通信電路121。在此情況下，第一藍牙成員裝置110可利用第一藍牙通信電路111接收主控裝置1060傳來的音量調整指示，而第二藍牙成員裝置120則可利用第一藍牙通信電路111接收主控裝置1060傳來的音量調整指示。如此一來，便可將圖10中的第一無線通信電路815和/或第二無線通信電路825省略。For example, in another embodiment, the communication circuit 1061 of the master device 1060 can use the Bluetooth communication technology instead to transmit the volume adjustment instruction, so as to transmit the volume adjustment instruction to the first Bluetooth communication circuit 111, and the second Bluetooth communication circuit 121 of the second Bluetooth member device 120 . In this case, the first Bluetooth member device 110 can use the first Bluetooth communication circuit 111 to receive the volume adjustment instruction from the master device 1060 , while the second Bluetooth member device 120 can use the first Bluetooth communication circuit 111 to receive the master control Volume adjustment instruction from device 1060. In this way, the first wireless communication circuit 815 and/or the second wireless communication circuit 825 in FIG. 10 can be omitted.

在主控裝置1060的通信電路1061改用藍牙通信技術來傳送音量調整指示給第一藍牙成員裝置110及第二藍牙成員裝置120的某些實施例中，主控裝置1060的處理電路1065可比照音訊廣播裝置150在前述圖5的流程502中的運作方式，將音量調整指示***一或多個標的資料項目中。In some embodiments in which the communication circuit 1061 of the master device 1060 uses Bluetooth communication technology to transmit the volume adjustment instruction to the first Bluetooth member device 110 and the second Bluetooth member device 120, the processing circuit 1065 of the master device 1060 can be compared with The operation of the audio broadcasting apparatus 150 in the aforementioned process 502 of FIG. 5 is to insert the volume adjustment instruction into one or more target data items.

例如，在前述的標的資料項目是各種藍牙廣告封包的某些實施例中，處理電路1065可將前述的音量調整指示，***單一個藍牙廣告封包的單一或多個特定欄位中，或是分散***多個藍牙廣告封包的特定欄位中。For example, in some embodiments in which the aforementioned target data items are various Bluetooth advertisement packets, the processing circuit 1065 may insert the aforementioned volume adjustment instruction into one or more specific fields of a single Bluetooth advertisement packet, or disperse the aforementioned volume adjustment instructions. Insert into specific fields of multiple Bluetooth advertising packets.

又例如，在前述的標的資料項目是各種BIS協定資料單元或BIG協定資料單元的某些實施例中，處理電路1065可將前述的音量調整指示，***單一個BIS協定資料單元或BIG協定資料單元的單一或多個特定欄位中，或是分散***多個BIS協定資料單元或BIG協定資料單元的特定欄位中。如前所述，前述的特定欄位可以是BIS協定資料單元或BIG協定資料單元中的事件計數（Event Counter）欄位、子事件計數（Sub-Event Counter）欄位、或負載計數（Payload Counter）欄位等等。For another example, in some embodiments in which the aforementioned target data items are various BIS protocol data units or BIG protocol data units, the processing circuit 1065 may insert the aforementioned volume adjustment instruction into a single BIS protocol data unit or BIG protocol data unit into single or multiple specific fields, or scatteredly inserted into specific fields of multiple BIS protocol data units or BIG protocol data units. As mentioned above, the aforementioned specific field may be an Event Counter field, a Sub-Event Counter field, or a Payload Counter field in a BIS protocol data unit or a BIG protocol data unit. ) field, etc.

接著，處理電路1065可比照音訊廣播裝置150在前述圖5的流程504中的運作方式，控制通信電路1061操作在一標的傳送模式下，以將前述的一或多個標的資料項目傳送給第一藍牙成員裝置110及第二藍牙成員裝置120。通信電路1061在標的傳送模式下將前述的一或多個標的資料項目傳送給第一藍牙成員裝置110及第二藍牙成員裝置120的方式，與前述圖5中的流程504及流程506相同。為了簡潔起見，在此不重複敘述。Next, the processing circuit 1065 can control the communication circuit 1061 to operate in a target transmission mode, so as to transmit the aforesaid one or more target data items to the first The Bluetooth member device 110 and the second Bluetooth member device 120 . The manner in which the communication circuit 1061 transmits the aforementioned one or more target data items to the first Bluetooth member device 110 and the second Bluetooth member device 120 in the target transmission mode is the same as the aforementioned process 504 and process 506 in FIG. 5 . For the sake of brevity, the description is not repeated here.

在實際應用中，主控裝置1060可比照前述調整第一藍牙成員裝置110或第二藍牙成員裝置120的音量大小的方式，利用音量調整指示來同步調整藍牙音訊廣播系統400中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140）的音量大小。但這只是一示例性的實施例，並非侷限本發明之實際實施方式。In practical applications, the master control device 1060 can use the volume adjustment instruction to synchronously adjust other Bluetooth member devices in the Bluetooth audio broadcasting system 400 according to the aforementioned method of adjusting the volume of the first Bluetooth member device 110 or the second Bluetooth member device 120 (For example, the volume of the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140 ). However, this is only an exemplary embodiment, and does not limit the actual implementation of the present invention.

實作上，藍牙音訊廣播系統400中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140）的音量大小，亦可改由另一個主控裝置（例如，主控裝置1070）來控制。在此情況下，第三藍牙成員裝置130及第四藍牙成員裝置140會依據主控裝置1070產生的音量調整指示，同步調整播放預定音訊資料時的音量大小。In practice, the volume levels of other Bluetooth member devices in the Bluetooth audio broadcasting system 400 (eg, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140 ) can also be changed by another master device (eg, main control device 1070) to control. In this case, the third Bluetooth member device 130 and the fourth Bluetooth member device 140 will synchronously adjust the volume when playing the predetermined audio data according to the volume adjustment instruction generated by the main control device 1070 .

請參考圖12，其所繪示為本發明一第八實施例的藍牙音訊廣播系統300簡化後的功能方塊圖。類似於圖10中的藍牙音訊廣播系統400，圖12中的藍牙音訊廣播系統400同樣包含了音訊廣播裝置150、多個藍牙成員裝置（例如，前述的第一藍牙成員裝置110、第二藍牙成員裝置120、第三藍牙成員裝置130、及第四藍牙成員裝置140）、主控裝置1060、以及主控裝置1070。Please refer to FIG. 12 , which is a simplified functional block diagram of a Bluetooth audio broadcasting system 300 according to an eighth embodiment of the present invention. Similar to the Bluetooth audio broadcasting system 400 in FIG. 10 , the Bluetooth audio broadcasting system 400 in FIG. 12 also includes an audio broadcasting device 150 , a plurality of Bluetooth member devices (for example, the aforementioned first Bluetooth member device 110 , the second Bluetooth member device 110 ) device 120 , the third Bluetooth member device 130 , and the fourth Bluetooth member device 140 ), the master device 1060 , and the master device 1070 .

相較於前述圖10的實施例，圖12的藍牙音訊廣播系統400中的部分或全部藍牙成員裝置，還包含有一觸發電路。例如，在圖12的實施例中，除了前述的第一藍牙通信電路111、第一音訊處理電路112、第一音訊播放電路113、第一控制電路114、以及第一無線通信電路815之外，第一藍牙成員裝置110還包含有第一觸發電路816。相仿地，除了前述的第二藍牙通信電路121、第二音訊處理電路122、第二音訊播放電路123、第二控制電路124、以及第二無線通信電路825之外，第二藍牙成員裝置120還包含有第二觸發電路826。Compared with the aforementioned embodiment of FIG. 10 , some or all of the Bluetooth member devices in the Bluetooth audio broadcasting system 400 of FIG. 12 further include a trigger circuit. For example, in the embodiment of FIG. 12 , in addition to the aforementioned first Bluetooth communication circuit 111 , first audio processing circuit 112 , first audio playback circuit 113 , first control circuit 114 , and first wireless communication circuit 815 , The first Bluetooth member device 110 also includes a first trigger circuit 816 . Similarly, in addition to the aforementioned second Bluetooth communication circuit 121 , the second audio processing circuit 122 , the second audio playback circuit 123 , the second control circuit 124 , and the second wireless communication circuit 825 , the second Bluetooth member device 120 also A second flip-flop circuit 826 is included.

在第一藍牙成員裝置110中，第一觸發電路816耦接於第一控制電路114，並設置成可依據使用者的簡單操作而產生一相對應的使用者觸發信號。第一控制電路114可在第一觸發電路816產生使用者觸發信號時，產生一音量調整請求VAR，並利用第一無線通信電路815傳送音量調整請求VAR給主控裝置1060。In the first Bluetooth member device 110, the first trigger circuit 816 is coupled to the first control circuit 114, and is configured to generate a corresponding user trigger signal according to a simple operation of the user. The first control circuit 114 can generate a volume adjustment request VAR when the first trigger circuit 816 generates a user trigger signal, and use the first wireless communication circuit 815 to transmit the volume adjustment request VAR to the main control device 1060 .

在第二藍牙成員裝置120中，第二觸發電路826耦接於第二控制電路124，並設置成可依據使用者的簡單操作而產生一相對應的使用者觸發信號。第二控制電路124可在第二觸發電路826產生使用者觸發信號時，產生一音量調整請求VAR，並利用第二無線通信電路825傳送音量調整請求VAR給主控裝置1060。In the second Bluetooth member device 120, the second trigger circuit 826 is coupled to the second control circuit 124, and is configured to generate a corresponding user trigger signal according to a simple operation of the user. The second control circuit 124 can generate a volume adjustment request VAR when the second trigger circuit 826 generates a user trigger signal, and use the second wireless communication circuit 825 to transmit the volume adjustment request VAR to the main control device 1060 .

如前所述，前述的第一觸發電路816及第二觸發電路826，皆可用各種可依據使用者的簡單操作而產生相對應的使用者觸發信號的裝置來實現，例如，各種觸控電路、按鈕、開關、遙控器、觸控螢幕、聲控裝置、手勢感應裝置、陀螺儀、採用其他觸發信號産生技術的電路、或前揭各種裝置的組合。第一觸發電路816可設置於第一藍牙成員裝置110的外部，也可與第一藍牙成員裝置110中的其他功能方塊整合在一起。相仿地，第二觸發電路826可設置於第二藍牙成員裝置120的外部，也可與第二藍牙成員裝置120中的其他功能方塊整合在一起。As mentioned above, the aforementioned first trigger circuit 816 and second trigger circuit 826 can be implemented by various devices that can generate corresponding user trigger signals according to simple user operations, such as various touch circuits, Buttons, switches, remote controls, touch screens, voice-activated devices, gesture-sensing devices, gyroscopes, circuits using other trigger signal generation techniques, or a combination of various devices. The first trigger circuit 816 may be disposed outside the first Bluetooth member device 110 , or may be integrated with other functional blocks in the first Bluetooth member device 110 . Similarly, the second trigger circuit 826 can be disposed outside the second Bluetooth member device 120 , and can also be integrated with other functional blocks in the second Bluetooth member device 120 .

圖12的藍牙音訊廣播系統400中的其他藍牙成員裝置，可比照前述的第一藍牙成員裝置110或第二藍牙成員裝置120的架構，設置相應的觸發電路。For other Bluetooth member devices in the Bluetooth audio broadcasting system 400 of FIG. 12 , corresponding trigger circuits can be set according to the structure of the first Bluetooth member device 110 or the second Bluetooth member device 120 described above.

以下將搭配圖13來進一步說明圖12中的藍牙音訊廣播系統400的運作方式。圖13為本發明一第四實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。The operation of the Bluetooth audio broadcasting system 400 in FIG. 12 will be further described below with reference to FIG. 13 . FIG. 13 is a simplified flowchart of a method for performing audio broadcasting using the BLE audio technology according to a fourth embodiment of the present invention.

基本上，圖13中的個別流程的運作方式都跟前述圖11實施例中的相應流程相同。因此，圖12中的藍牙音訊廣播系統400可比照前述圖10中的藍牙音訊廣播系統400的方式，來對多個藍牙成員裝置進行音訊廣播。Basically, the operations of the individual processes in FIG. 13 are the same as the corresponding processes in the aforementioned embodiment of FIG. 11 . Therefore, the Bluetooth audio broadcasting system 400 in FIG. 12 can perform audio broadcasting to a plurality of Bluetooth member devices in the manner of the aforementioned Bluetooth audio broadcasting system 400 in FIG. 10 .

然而，在音訊廣播裝置150進行音訊廣播的過程中（亦即，在音訊廣播裝置150重複進行圖13的流程222及流程224的過程中），倘若前述的多成員藍牙裝置的使用者想要調整相關藍牙成員裝置的音量大小，則使用者可對第一藍牙成員裝置110的第一觸發電路816進行特定的操作，以致使第一觸發電路816產生並傳送一使用者觸發信號給第一控制電路114。或者，使用者也可對第二藍牙成員裝置120的第二觸發電路826進行特定的操作，以致使第二觸發電路826產生並傳送一使用者觸發信號給第二控制電路124。However, during the process of audio broadcasting by the audio broadcasting device 150 (ie, during the process in which the audio broadcasting device 150 repeatedly performs the process 222 and the process 224 of FIG. 13 ), if the user of the aforementioned multi-member Bluetooth device wants to adjust the The volume of the relevant Bluetooth member device, the user can perform a specific operation on the first trigger circuit 816 of the first Bluetooth member device 110, so that the first trigger circuit 816 generates and transmits a user trigger signal to the first control circuit. 114. Alternatively, the user can also perform specific operations on the second trigger circuit 826 of the second Bluetooth member device 120 , so that the second trigger circuit 826 generates and transmits a user trigger signal to the second control circuit 124 .

倘若使用者是對第一觸發電路816進行特定的操作，則第一控制電路114可依據第一觸發電路816產生的使用者觸發信號產生一音量調整請求VAR，並利用第一無線通信電路815傳送音量調整請求VAR給主控裝置1060的通信電路1061。同樣地，倘若使用者是對第二觸發電路826進行特定的操作，則第二控制電路124可依據第二觸發電路826產生的使用者觸發信號產生一音量調整請求VAR，並利用第二無線通信電路825傳送音量調整請求VAR給主控裝置1060的通信電路1061。If the user performs a specific operation on the first trigger circuit 816 , the first control circuit 114 can generate a volume adjustment request VAR according to the user trigger signal generated by the first trigger circuit 816 , and transmit it through the first wireless communication circuit 815 . The volume adjustment request VAR is sent to the communication circuit 1061 of the main control device 1060 . Similarly, if the user performs a specific operation on the second trigger circuit 826, the second control circuit 124 can generate a volume adjustment request VAR according to the user trigger signal generated by the second trigger circuit 826, and use the second wireless communication The circuit 825 transmits the volume adjustment request VAR to the communication circuit 1061 of the master device 1060 .

與前述圖11實施例的差別之處在於，在圖13的實施例中，主控裝置1060的處理電路1065是在通信電路1061接收到第一藍牙成員裝置110或第二藍牙成員裝置120傳來的音量調整請求VAR時，進行圖13中的流程1132。The difference from the previous embodiment of FIG. 11 is that in the embodiment of FIG. 13 , the processing circuit 1065 of the main control device 1060 receives the transmission from the first Bluetooth member device 110 or the second Bluetooth member device 120 in the communication circuit 1061 . When the volume adjustment of the VAR is requested, the flow 1132 in FIG. 13 is performed.

在流程1132中，處理電路1065可依據第一藍牙成員裝置110或第二藍牙成員裝置120傳來的音量調整請求VAR，產生用來指示一音量調整方向（例如，調升或調降）的一音量調整指示，並可利用通信電路1061採用除了藍牙通信方式以外的各種無線存取技術（RAT），將音量調整指示傳送給第一藍牙成員裝置110的第一無線通信電路815、以及第二藍牙成員裝置120的第二無線通信電路825，以指示第一藍牙成員裝置110及第二藍牙成員裝置120同步調整音量大小。In the process 1132, the processing circuit 1065 may generate a volume adjustment direction (eg, up or down) according to the volume adjustment request VAR transmitted from the first Bluetooth member device 110 or the second Bluetooth member device 120. The volume adjustment instruction can be transmitted to the first wireless communication circuit 815 of the first Bluetooth member device 110 and the second Bluetooth using various radio access technologies (RATs) other than the Bluetooth communication method by using the communication circuit 1061 The second wireless communication circuit 825 of the member device 120 instructs the first Bluetooth member device 110 and the second Bluetooth member device 120 to adjust the volume synchronously.

在此情況下，圖12中的第一藍牙成員裝置110及第二藍牙成員裝置120可進行流程前述的流程1134及流程1136，以接收主控裝置1060傳來的音量調整指示，並依據音量調整指示，調整相應音訊播放電路的增益值。In this case, the first Bluetooth member device 110 and the second Bluetooth member device 120 in FIG. 12 can perform the aforementioned process 1134 and process 1136 to receive the volume adjustment instruction from the master control device 1060, and adjust the volume according to the volume instruction to adjust the gain value of the corresponding audio playback circuit.

由於第一藍牙成員裝置110及第二藍牙成員裝置120都是依據主控裝置1060傳來的音量調整指示來調整音量大小，所以當第一音訊處理電路112調整第一音訊播放電路113的音量大小時，第二音訊處理電路122也會同步調整第二音訊播放電路123的音量大小。Since the first Bluetooth member device 110 and the second Bluetooth member device 120 both adjust the volume according to the volume adjustment instruction from the master device 1060 , when the first audio processing circuit 112 adjusts the volume of the first audio playback circuit 113 At the same time, the second audio processing circuit 122 also adjusts the volume of the second audio playing circuit 123 synchronously.

換言之，圖12中的藍牙音訊廣播系統400同樣允許使用者同步調整藍牙音訊廣播系統400中的相關藍牙成員裝置的音量大小。In other words, the Bluetooth audio broadcasting system 400 in FIG. 12 also allows the user to adjust the volume of the related Bluetooth member devices in the Bluetooth audio broadcasting system 400 synchronously.

與前述圖10的實施例類似，圖12中的主控裝置1060的通信電路1061可改用藍牙通信技術來傳送音量調整指示，以將音量調整指示傳送給第一藍牙成員裝置110的第一藍牙通信電路111、以及第二藍牙成員裝置120的第二藍牙通信電路121。在此情況下，第一藍牙成員裝置110可利用第一藍牙通信電路111接收主控裝置1060傳來的音量調整指示，而第二藍牙成員裝置120則可利用第一藍牙通信電路111接收主控裝置1060傳來的音量調整指示。如此一來，便可將圖10中的第一無線通信電路815和/或第二無線通信電路825省略。Similar to the aforementioned embodiment of FIG. 10 , the communication circuit 1061 of the master device 1060 in FIG. 12 can use the Bluetooth communication technology instead to transmit the volume adjustment instruction, so as to transmit the volume adjustment instruction to the first Bluetooth of the first Bluetooth member device 110 The communication circuit 111 and the second Bluetooth communication circuit 121 of the second Bluetooth member device 120 . In this case, the first Bluetooth member device 110 can use the first Bluetooth communication circuit 111 to receive the volume adjustment instruction from the master device 1060 , while the second Bluetooth member device 120 can use the first Bluetooth communication circuit 111 to receive the master control Volume adjustment instruction from device 1060. In this way, the first wireless communication circuit 815 and/or the second wireless communication circuit 825 in FIG. 10 can be omitted.

另外，在某些實施例中，亦可將圖8的第二藍牙成員裝置120中的第二觸發電路826省略。In addition, in some embodiments, the second trigger circuit 826 in the second Bluetooth member device 120 of FIG. 8 may also be omitted.

在主控裝置1060的通信電路1061改用藍牙通信技術來傳送音量調整指示給第一藍牙成員裝置110及第二藍牙成員裝置120的某些實施例中，主控裝置1060的處理電路1065可比照音訊廣播裝置150在前述圖5的流程502中的運作方式，將音量調整指示***一或多個標的資料項目中。此外，處理電路1065還可比照音訊廣播裝置150在前述圖5的流程504中的運作方式，控制通信電路1061操作在一標的傳送模式下，以將前述的一或多個標的資料項目傳送給第一藍牙成員裝置110及第二藍牙成員裝置120。通信電路1061在標的傳送模式下將前述的一或多個標的資料項目傳送給第一藍牙成員裝置110及第二藍牙成員裝置120的方式，與前述圖5中的流程504及流程506相同。為了簡潔起見，在此不重複敘述。In some embodiments in which the communication circuit 1061 of the master device 1060 uses Bluetooth communication technology to transmit the volume adjustment instruction to the first Bluetooth member device 110 and the second Bluetooth member device 120, the processing circuit 1065 of the master device 1060 can be compared with The operation of the audio broadcasting apparatus 150 in the aforementioned process 502 of FIG. 5 is to insert the volume adjustment instruction into one or more target data items. In addition, the processing circuit 1065 can also control the communication circuit 1061 to operate in a target transmission mode, so as to transmit the aforesaid one or more target data items to the first A Bluetooth member device 110 and a second Bluetooth member device 120 . The manner in which the communication circuit 1061 transmits the aforementioned one or more target data items to the first Bluetooth member device 110 and the second Bluetooth member device 120 in the target transmission mode is the same as the aforementioned process 504 and process 506 in FIG. 5 . For the sake of brevity, the description is not repeated here.

在實際應用中，圖12中的主控裝置1060可比照前述調整第一藍牙成員裝置110或第二藍牙成員裝置120的音量大小的方式，利用音量調整指示來同步調整藍牙音訊廣播系統400中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140）的音量大小。但這只是一示例性的實施例，並非侷限本發明之實際實施方式。In practical applications, the master control device 1060 in FIG. 12 can use the volume adjustment instruction to synchronously adjust the volume of the Bluetooth audio broadcasting system 400 by using the volume adjustment instruction according to the aforementioned method of adjusting the volume of the first Bluetooth member device 110 or the second Bluetooth member device 120 . Volume levels of other Bluetooth member devices (eg, the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140 ). However, this is only an exemplary embodiment, and does not limit the actual implementation of the present invention.

實作上，藍牙音訊廣播系統400中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140）的音量大小，亦可改由另一個主控裝置（例如，主控裝置1070）來控制。在此情況下，第三藍牙成員裝置130及第四藍牙成員裝置140會依據主控裝置1070產生的音量調整指示，同步調整播放預定音訊資料時的音量大小。In practice, the volume levels of other Bluetooth member devices in the Bluetooth audio broadcasting system 400 (eg, the aforementioned third Bluetooth member device 130 and the fourth Bluetooth member device 140 ) can also be changed by another master device (eg, main control device 1070) to control. In this case, the third Bluetooth member device 130 and the fourth Bluetooth member device 140 will synchronously adjust the volume when playing the predetermined audio data according to the volume adjustment instruction generated by the main control device 1070 .

前述有關圖10中的相關電路與裝置的實施方式及連接方式的描述，亦適用於圖12的藍牙音訊廣播系統400中。另外，由於圖13中的個別流程的運作方式，基本上都跟前述圖11實施例中的相應流程相同，因此，前述有關圖11的運作流程的描述，亦適用於圖13的實施例中。為簡潔起見，在此不重複敘述。The foregoing description about the implementation and connection of the related circuits and devices in FIG. 10 is also applicable to the Bluetooth audio broadcasting system 400 in FIG. 12 . In addition, since the operations of the individual processes in FIG. 13 are basically the same as the corresponding processes in the foregoing embodiment of FIG. 11 , the foregoing description of the operation process of FIG. For brevity, the description is not repeated here.

由前述圖10至圖13的說明可知，在藍牙音訊廣播系統400中的多成員藍牙裝置開始播放音訊廣播裝置150傳來的預定音訊資料之前，第一藍牙成員裝置110及第二藍牙成員裝置120就會先依據音訊廣播裝置150傳來的預定音量指示，分別將第一音訊播放電路113及第二音訊播放電路123的音量大小，調整成接近或等於前述的預定音量大小。10 to 13, before the multi-member Bluetooth device in the Bluetooth audio broadcasting system 400 starts to play the predetermined audio data from the audio broadcasting device 150, the first Bluetooth member device 110 and the second Bluetooth member device 120 The volume of the first audio playback circuit 113 and the volume of the second audio playback circuit 123 are respectively adjusted to be close to or equal to the aforementioned predetermined volume according to the predetermined volume indication from the audio broadcasting device 150 .

因此，當第一藍牙成員裝置110開始利用第一音訊播放電路113播放音訊廣播裝置150傳來的預定音訊資料時，第一音訊播放電路113發出的音量大小會接近或等於前述的預定音量大小。同樣地，當第二藍牙成員裝置120開始利用第二音訊播放電路123播放音訊廣播裝置150傳來的預定音訊資料時，第二音訊播放電路123發出的音量大小也會接近或等於前述的預定音量大小。Therefore, when the first Bluetooth member device 110 starts to use the first audio playback circuit 113 to play the predetermined audio data from the audio broadcasting device 150, the volume output by the first audio playback circuit 113 will be close to or equal to the aforementioned predetermined volume. Similarly, when the second Bluetooth member device 120 starts to use the second audio playback circuit 123 to play the predetermined audio data from the audio broadcasting device 150, the volume of the second audio playback circuit 123 will be close to or equal to the aforementioned predetermined volume. size.

如此一來，第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時所發出的音量大小，就能讓使用者感到舒適，而不會造成使用者感到不適或不悅。In this way, when the first audio playing circuit 113 and the second audio playing circuit 123 start to play the predetermined audio data synchronously, the volume of the sound can make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

此外，由於第一音訊播放電路113及第二音訊播放電路123開始同步播放預定音訊資料時的音量大小，已被預先設置成接近或等於前述的預定音量大小，所以就算音訊廣播裝置150是在使用者沒有心理預期的情況下開始進行音訊廣播，也能避免使用者因為突如其來的音訊廣播的音量過大而受到驚嚇的問題發生。In addition, since the volume levels when the first audio playback circuit 113 and the second audio playback circuit 123 start to play the predetermined audio data synchronously have been preset to be close to or equal to the aforementioned predetermined volume levels, even if the audio broadcasting device 150 is using The audio broadcast can be started without the user's psychological expectation, and the problem of the user being frightened by the sudden loudness of the audio broadcast can also be avoided.

同樣地，藍牙音訊廣播系統400中的其他藍牙成員裝置（例如，前述的第三藍牙成員裝置130及第四藍牙成員裝置140），在開始播放音訊廣播裝置150傳來的預定音訊資料之前，就會先依據音訊廣播裝置150傳來的預定音量指示，分別將相關的音訊播放電路（圖中未繪示）的音量大小，調整成接近或等於前述的預定音量大小。因此，藍牙音訊廣播系統400中的其他藍牙成員裝置開始同步播放預定音訊資料時所發出的音量大小，也能讓使用者感到舒適，而不會造成使用者感到不適或不悅。Similarly, other Bluetooth member devices in the Bluetooth audio broadcasting system 400 (eg, the aforementioned third Bluetooth member device 130 and fourth Bluetooth member device 140 ), before starting to play the predetermined audio data from the audio broadcasting device 150 , First, according to the predetermined volume indication from the audio broadcasting device 150 , the volume of the relevant audio playback circuit (not shown in the figure) is adjusted to be close to or equal to the aforementioned predetermined volume. Therefore, the volume of the other Bluetooth member devices in the Bluetooth audio broadcasting system 400 when they start to play the predetermined audio data synchronously can also make the user feel comfortable without causing the user to feel uncomfortable or unhappy.

另外，在藍牙音訊廣播系統400中的多成員藍牙裝置播放音訊廣播裝置150所廣播的音訊資料的過程中，使用者還可對主控裝置1060進行操作，以致使主控裝置1060傳送一音量調整指示給個別藍牙成員裝置（例如，前述的第一藍牙成員裝置110及第二藍牙成員裝置120），以同步調整相關藍牙成員裝置的音量大小。換言之，前述的藍牙音訊廣播系統400允許使用者同步調整藍牙音訊廣播系統400中的不同藍牙成員裝置的音量大小。In addition, during the multi-member Bluetooth device in the Bluetooth audio broadcasting system 400 playing the audio data broadcasted by the audio broadcasting device 150, the user can also operate the master control device 1060, so that the master control device 1060 transmits a volume adjustment Instruct individual Bluetooth member devices (eg, the aforementioned first Bluetooth member device 110 and second Bluetooth member device 120 ) to synchronously adjust the volume of the related Bluetooth member devices. In other words, the aforementioned Bluetooth audio broadcasting system 400 allows the user to adjust the volume of different Bluetooth member devices in the Bluetooth audio broadcasting system 400 synchronously.

再者，藍牙音訊廣播系統400是採用BLE音訊技術來進行音訊廣播，而且音訊廣播裝置150可採用低複雜度通信編解碼器（LC3）對預定音訊資料進行編碼。因此，相較於傳統的音訊廣播方式而言，藍牙音訊廣播系統400所採用的前述音訊廣播方法，不僅可降低多成員藍牙裝置的耗電量，進而延長多成員藍牙裝置的使用時間，還能有效提升音訊廣播的整體音訊品質。Furthermore, the Bluetooth audio broadcasting system 400 uses the BLE audio technology to perform audio broadcasting, and the audio broadcasting device 150 can use the low-complexity communication codec (LC3) to encode the predetermined audio data. Therefore, compared with the traditional audio broadcasting method, the aforementioned audio broadcasting method adopted by the Bluetooth audio broadcasting system 400 can not only reduce the power consumption of the multi-member Bluetooth device, thereby prolong the use time of the multi-member Bluetooth device, but also can reduce the power consumption of the multi-member Bluetooth device. Effectively improve the overall audio quality of audio broadcasting.

請注意，前述各流程圖中的流程執行順序只是一示範性的實施例，並非侷限本發明的實際實施方式。Please note that the execution sequence of the processes in the foregoing flowcharts is only an exemplary embodiment, and is not intended to limit the actual implementation of the present invention.

例如，圖2和/或圖4中的流程206，可以調整到流程202和/或流程204之前進行，也可以和流程202或流程204同時進行。For example, the process 206 in FIG. 2 and/or FIG. 4 may be adjusted to be performed before the process 202 and/or the process 204 , or may be performed simultaneously with the process 202 or the process 204 .

又例如，圖11和/或圖13中的流程206，可以調整到流程1102之前進行，也可以和流程1102同時進行。For another example, the process 206 in FIG. 11 and/or FIG. 13 may be adjusted to be performed before the process 1102 , or may be performed simultaneously with the process 1102 .

又例如，圖2、圖4、圖11和/或圖13中的流程222，可以調整到流程208和/或流程210之前進行，也可以和流程208或流程210同時進行。For another example, the process 222 in FIG. 2 , FIG. 4 , FIG. 11 and/or FIG. 13 may be adjusted to be performed before the process 208 and/or the process 210 , or may be performed simultaneously with the process 208 or the process 210 .

又例如，在某些實施例中，亦可將前述圖4中的流程208至流程220省略。For another example, in some embodiments, the aforementioned processes 208 to 220 in FIG. 4 may also be omitted.

又例如，在某些實施例中，亦可將前述圖11與圖13中的流程208、流程210、流程1112、流程1114、及流程1116省略。For another example, in some embodiments, the process 208 , the process 210 , the process 1112 , the process 1114 , and the process 1116 in the aforementioned FIG. 11 and FIG. 13 may also be omitted.

在說明書及申請專利範圍中使用了某些詞彙來指稱特定的元件，而本領域內的技術人員可能會用不同的名詞來稱呼同樣的元件。本說明書及申請專利範圍並不以名稱的差異來做為區分元件的方式，而是以元件在功能上的差異來做為區分的基準。在說明書及申請專利範圍中所提及的「包含」爲開放式的用語，應解釋成「包含但不限定於」。另外，「耦接」一詞在此包含任何直接及間接的連接手段。因此，若文中描述第一元件耦接於第二元件，則代表第一元件可通過電性連接或無線傳輸、光學傳輸等信號連接方式而直接地連接於第二元件，或通過其它元件或連接手段間接地電性或信號連接至第二元件。Certain terms are used in the description and the scope of the claims to refer to specific elements, and those skilled in the art may refer to the same elements by different terms. This specification and the scope of the patent application do not use the difference in name as a way to distinguish elements, but use the difference in function of the elements as a criterion for distinguishing. The "comprising" mentioned in the description and the scope of the patent application is an open-ended term, and should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of connection. Therefore, if it is described in the text that the first element is coupled to the second element, it means that the first element can be directly connected to the second element through electrical connection or signal connection such as wireless transmission or optical transmission, or through other elements or connections. The means is indirectly electrically or signally connected to the second element.

在說明書中所使用的「和/或」的描述方式，包含所列舉的其中一個項目或多個項目的任意組合。另外，除非說明書中特別指明，否則任何單數格的用語都同時包含複數格的含義。The descriptions of "and/or" used in the specification include any combination of one or more of the listed items. In addition, unless otherwise specified in the specification, any term in the singular also includes the meaning in the plural.

以上僅為本發明的較佳實施例，凡依本發明請求項所做的等效變化與修改，皆應屬本發明的涵蓋範圍。The above are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

100、200、300、400:藍牙音訊廣播系統（Bluetooth audio broadcasting system）100, 200, 300, 400: Bluetooth audio broadcasting system

110:第一藍牙成員裝置（first Bluetooth member device）110: first Bluetooth member device

111:第一藍牙通信電路（first Bluetooth communication circuit）111: first Bluetooth communication circuit (first Bluetooth communication circuit)

112:第一音訊處理電路（first audio processing circuit）112: first audio processing circuit (first audio processing circuit)

113:第一音訊播放電路（first audio playback circuit）113: first audio playback circuit

114:第一控制電路（first control circuit）114: first control circuit

120:第二藍牙成員裝置（second Bluetooth member device）120: second Bluetooth member device

121:第二藍牙通信電路（second Bluetooth communication circuit）121: second Bluetooth communication circuit

122:第二音訊處理電路（second audio processing circuit）122: second audio processing circuit (second audio processing circuit)

123:第二音訊播放電路（second audio playback circuit）123: second audio playback circuit

124:第二控制電路（second control circuit）124: second control circuit (second control circuit)

130:第三藍牙成員裝置（third Bluetooth member device）130: third Bluetooth member device

140:第四藍牙成員裝置（fourth Bluetooth member device）140: fourth Bluetooth member device

150:音訊廣播裝置（audio broadcasting device）150: Audio broadcasting device

202~234、502~514、1102、1112~1116、1126~1136:運作流程（operation）202~234, 502~514, 1102, 1112~1116, 1126~1136: Operation process (operation)

370:音量來源裝置（audio source device）370: audio source device

660、1060、1070:主控裝置（host device）660, 1060, 1070: host device

661、1061:通信電路（communication circuit）661, 1061: communication circuit (communication circuit)

663、1063:輸入電路（input circuit）663, 1063: input circuit (input circuit)

665、1065:處理電路（processing circuit）665, 1065: processing circuit

815:第一無線通信電路（first wireless communication circuit）815: first wireless communication circuit

816:第一觸發電路（first trigger circuit）816: first trigger circuit

825:第二無線通信電路（second wireless communication circuit）825: second wireless communication circuit

826:第二觸發電路（second trigger circuit）826: second trigger circuit

圖1為本發明一第一實施例的藍牙音訊廣播系統簡化後的功能方塊圖。FIG. 1 is a simplified functional block diagram of a Bluetooth audio broadcasting system according to a first embodiment of the present invention.

圖2為本發明一第一實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。FIG. 2 is a simplified flowchart of a method for performing audio broadcasting using the BLE audio technology according to a first embodiment of the present invention.

圖3為本發明一第二實施例的藍牙音訊廣播系統簡化後的功能方塊圖。FIG. 3 is a simplified functional block diagram of a Bluetooth audio broadcasting system according to a second embodiment of the present invention.

圖4至圖5為本發明一第二實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。4 to 5 are simplified flowcharts of a method for performing audio broadcasting using the BLE audio technology according to a second embodiment of the present invention.

圖6為本發明一第三實施例的藍牙音訊廣播系統簡化後的功能方塊圖。6 is a simplified functional block diagram of a Bluetooth audio broadcasting system according to a third embodiment of the present invention.

圖7為本發明一第四實施例的藍牙音訊廣播系統簡化後的功能方塊圖。FIG. 7 is a simplified functional block diagram of a Bluetooth audio broadcasting system according to a fourth embodiment of the present invention.

圖8為本發明一第五實施例的藍牙音訊廣播系統簡化後的功能方塊圖。8 is a simplified functional block diagram of a Bluetooth audio broadcasting system according to a fifth embodiment of the present invention.

圖9為本發明一第六實施例的藍牙音訊廣播系統簡化後的功能方塊圖。FIG. 9 is a simplified functional block diagram of a Bluetooth audio broadcasting system according to a sixth embodiment of the present invention.

圖10為本發明一第七實施例的藍牙音訊廣播系統簡化後的功能方塊圖。FIG. 10 is a simplified functional block diagram of a Bluetooth audio broadcasting system according to a seventh embodiment of the present invention.

圖11為本發明一第三實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。FIG. 11 is a simplified flowchart of a method for performing audio broadcasting using the BLE audio technology according to a third embodiment of the present invention.

圖12為本發明一第八實施例的藍牙音訊廣播系統簡化後的功能方塊圖。FIG. 12 is a simplified functional block diagram of a Bluetooth audio broadcasting system according to an eighth embodiment of the present invention.

圖13為本發明一第四實施例的利用BLE音訊技術進行音訊廣播的方法簡化後的流程圖。FIG. 13 is a simplified flowchart of a method for performing audio broadcasting using the BLE audio technology according to a fourth embodiment of the present invention.

100:藍牙音訊廣播系統 100:Bluetooth Audio Broadcasting System

110:第一藍牙成員裝置 110: First Bluetooth member device

111:第一藍牙通信電路 111: The first Bluetooth communication circuit

112:第一音訊處理電路 112: The first audio processing circuit

113:第一音訊播放電路 113: The first audio playback circuit

114:第一控制電路 114: The first control circuit

120:第二藍牙成員裝置 120: Second Bluetooth member device

121:第二藍牙通信電路 121: Second Bluetooth communication circuit

122:第二音訊處理電路 122: Second audio processing circuit

123:第二音訊播放電路 123: Second audio playback circuit

124:第二控制電路 124: The second control circuit

130:第三藍牙成員裝置 130: Third Bluetooth member device

140:第四藍牙成員裝置 140: Fourth Bluetooth member device

150:音訊廣播裝置 150: Audio broadcasting device

Claims (10)

一種藍牙音訊廣播系統（100），包含有： 一音訊廣播裝置（150），設置成可透過一廣播等時串流（Broadcast Isochronous Stream，BIS）邏輯傳輸通道（logical transport），廣播一或多個低功耗藍牙音訊封包（Bluetooth LE audio packet）； 一第一藍牙成員裝置（110），其包含： 一第一藍牙通信電路（111），設置成可接收該一或多個低功耗藍牙音訊封包； 一第一音訊處理電路（112）；以及 一第一控制電路（114），耦接於該第一藍牙通信電路（111）及該第一音訊處理電路（112），設置成可解析該第一藍牙通信電路（111）接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路（112）控制一第一音訊播放電路（113）播放該預定音訊資料；以及 一第二藍牙成員裝置（120），其包含： 一第二藍牙通信電路（121），設置成可接收該一或多個低功耗藍牙音訊封包； 一第二音訊處理電路（122）；以及 一第二控制電路（124），耦接於該第二藍牙通信電路（121）及該第二音訊處理電路（122），設置成可解析該第二藍牙通信電路（121）接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路（122）控制一第二音訊播放電路（123）播放該預定音訊資料； 其中，該音訊廣播裝置（150）還設置成可在廣播該一或多個低功耗藍牙音訊封包之前，先發送一預定音量指示給該第一藍牙成員裝置（110）及該第二藍牙成員裝置（120）； 其中，該第一藍牙通信電路（111）還設置成可接收該預定音量指示，且該第一控制電路（114）還設置成可依據該預定音量指示，控制該第一音訊處理電路（112）預先設置該第一音訊播放電路（113）的一音量大小； 其中，該第二藍牙通信電路（121）還設置成可接收該預定音量指示，且該第二控制電路（124）還設置成可依據該預定音量指示，控制該第二音訊處理電路（122）預先設置該第二音訊播放電路（123）的一音量大小。 A Bluetooth audio broadcasting system (100), comprising: An audio broadcast device (150) configured to broadcast one or more Bluetooth LE audio packets through a Broadcast Isochronous Stream (BIS) logical transport channel (logical transport) ; A first Bluetooth member device (110) comprising: a first Bluetooth communication circuit (111) configured to receive the one or more low-power Bluetooth audio packets; a first audio processing circuit (112); and A first control circuit (114), coupled to the first Bluetooth communication circuit (111) and the first audio processing circuit (112), configured to parse the one received by the first Bluetooth communication circuit (111) or a plurality of low-power Bluetooth audio packets to obtain a predetermined audio data, and instruct the first audio processing circuit (112) to control a first audio playback circuit (113) to play the predetermined audio data; and A second Bluetooth member device (120) comprising: a second Bluetooth communication circuit (121) configured to receive the one or more low-power Bluetooth audio packets; a second audio processing circuit (122); and A second control circuit (124), coupled to the second Bluetooth communication circuit (121) and the second audio processing circuit (122), configured to parse the one received by the second Bluetooth communication circuit (121) or a plurality of low-power Bluetooth audio packets to obtain the predetermined audio data, and instruct the second audio processing circuit (122) to control a second audio playback circuit (123) to play the predetermined audio data; Wherein, the audio broadcasting device (150) is further configured to send a predetermined volume indication to the first Bluetooth member device (110) and the second Bluetooth member before broadcasting the one or more low-power Bluetooth audio packets device(120); Wherein, the first Bluetooth communication circuit (111) is further configured to receive the predetermined volume indication, and the first control circuit (114) is further configured to control the first audio processing circuit (112) according to the predetermined volume indicator Preset a volume level of the first audio playback circuit (113); Wherein, the second Bluetooth communication circuit (121) is further configured to receive the predetermined volume indication, and the second control circuit (124) is further configured to control the second audio processing circuit (122) according to the predetermined volume indicator A volume level of the second audio playback circuit (123) is preset. 如請求項1所述的藍牙音訊廣播系統（100），其中，該音訊廣播裝置（150）還設置成可將該預定音量指示***一或多個預定資料項目中，並傳送該一或多個預定資料項目； 其中，該第一藍牙通信電路（111）還設置成可接收該一或多個預定資料項目，且該第一控制電路（114）還設置成可解析該一或多個預定資料項目以獲取該預定音量指示，並可依據該預定音量指示控制該第一音訊處理電路（112）設置該第一音訊播放電路（113）的一增益值； 其中，該第二藍牙通信電路（121）還設置成可接收該一或多個預定資料項目，且該第二控制電路（124）還設置成可解析該一或多個預定資料項目以獲取該預定音量指示，並可依據該預定音量指示控制該第二音訊處理電路（122）設置該第二音訊播放電路（123）的一增益值。 The Bluetooth audio broadcasting system (100) according to claim 1, wherein the audio broadcasting device (150) is further configured to insert the predetermined volume indication into one or more predetermined data items, and transmit the one or more predetermined data items. Scheduled data items; Wherein, the first Bluetooth communication circuit (111) is further configured to receive the one or more predetermined data items, and the first control circuit (114) is further configured to parse the one or more predetermined data items to obtain the a predetermined volume indication, and can control the first audio processing circuit (112) to set a gain value of the first audio playback circuit (113) according to the predetermined volume indication; Wherein, the second Bluetooth communication circuit (121) is further configured to receive the one or more predetermined data items, and the second control circuit (124) is further configured to parse the one or more predetermined data items to obtain the A predetermined volume indication, and the second audio processing circuit (122) can be controlled to set a gain value of the second audio playback circuit (123) according to the predetermined volume indication. 如請求項2所述的藍牙音訊廣播系統（100），其中，該一或多個預定資料項目，是選自於下列項目所形成的一群組： 一或多個廣告指示（advertising indication，ADV_IND）封包； 一或多個不可連接廣告指示（non-connectable advertising indication，ADV_NONCONN_IND）封包； 一或多個可查廣告指示（discoverable advertisement indication，ADV_DISCOVER_IND）封包； 一或多個廣播等時串流協定資料單元（BIS protocol data unit）；以及 一或多個廣播等時群組協定資料單元（BIG protocol data unit）。 The Bluetooth audio broadcasting system (100) according to claim 2, wherein the one or more predetermined data items are selected from a group formed by the following items: one or more advertising indication (ADV_IND) packets; One or more non-connectable advertising indication (ADV_NONCONN_IND) packets; One or more discoverable advertisement indication (ADV_DISCOVER_IND) packets; one or more broadcast isochronous streaming protocol data units (BIS protocol data units); and One or more broadcast isochronous group protocol data units (BIG protocol data units). 如請求項2所述的藍牙音訊廣播系統（100），其中，該一或多個預定資料項目，是選自於下列項目所形成的一群組： 一或多個輔助廣告指示（auxiliary advertising indication，AUX_ADV_IND）封包； 一或多個廣告拓展指示（extended advertising indication，ADV_EXT_IND）封包； 一或多個輔助鏈接指示（auxiliary chain indication，AUX_CHAIN_IND）封包； 一或多個輔助掃描回應（auxiliary scan response，AUX_SCAN_RSP）封包； 一或多個輔助同步指示（auxiliary synchronous indication，AUX_SYNC_IND）封包； 一或多個廣播等時串流協定資料單元；以及 一或多個廣播等時群組協定資料單元。 The Bluetooth audio broadcasting system (100) according to claim 2, wherein the one or more predetermined data items are selected from a group formed by the following items: one or more auxiliary advertising indication (AUX_ADV_IND) packets; one or more extended advertising indication (ADV_EXT_IND) packets; one or more auxiliary chain indication (AUX_CHAIN_IND) packets; One or more auxiliary scan response (auxiliary scan response, AUX_SCAN_RSP) packets; one or more auxiliary synchronous indication (AUX_SYNC_IND) packets; one or more broadcast isochronous streaming protocol data units; and One or more broadcast isochronous group agreement data units. 如請求項2所述的藍牙音訊廣播系統（100），其中，該一或多個預定資料項目，是選自於下列項目所形成的一群組： 一或多個廣告指示封包； 一或多個不可連接廣告指示封包； 一或多個可查廣告指示封包； 一或多個輔助廣告指示封包； 一或多個廣告拓展指示封包； 一或多個輔助鏈接指示封包； 一或多個輔助掃描回應封包； 一或多個輔助同步指示封包； 一或多個廣播等時串流協定資料單元；以及 一或多個廣播等時群組協定資料單元。 The Bluetooth audio broadcasting system (100) according to claim 2, wherein the one or more predetermined data items are selected from a group formed by the following items: one or more advertising instruction packets; one or more unconnectable advertising indication packets; one or more searchable advertisement instruction packets; one or more ancillary advertising indication packets; one or more ad extension instruction packets; one or more secondary link indication packets; one or more auxiliary scan response packets; one or more auxiliary synchronization indication packets; one or more broadcast isochronous streaming protocol data units; and One or more broadcast isochronous group agreement data units. 一種多成員藍牙裝置，包含有： 一第一藍牙成員裝置（110），其包含： 一第一藍牙通信電路（111），設置成可透過一廣播等時串流（Broadcast Isochronous Stream，BIS）邏輯傳輸通道（logical transport），接收一音訊廣播裝置（150）所廣播的一或多個低功耗藍牙音訊封包； 一第一音訊處理電路（112）；以及 一第一控制電路（114），耦接於該第一藍牙通信電路（111）及該第一音訊處理電路（112），設置成可解析該第一藍牙通信電路（111）接收到的該一或多個低功耗藍牙音訊封包以獲取一預定音訊資料，並指示該第一音訊處理電路（112）控制一第一音訊播放電路（113）播放該預定音訊資料；以及 一第二藍牙成員裝置（120），其包含： 一第二藍牙通信電路（121），設置成可透過該廣播等時串流邏輯傳輸通道，接收該音訊廣播裝置（150）所廣播的該一或多個低功耗藍牙音訊封包； 一第二音訊處理電路（122）；以及 一第二控制電路（124），耦接於該第二藍牙通信電路（121）及該第二音訊處理電路（122），設置成可解析該第二藍牙通信電路（121）接收到的該一或多個低功耗藍牙音訊封包以獲取該預定音訊資料，並指示該第二音訊處理電路（122）控制一第二音訊播放電路（123）播放該預定音訊資料； 其中，該第一控制電路（114）還設置成控制該第一藍牙成員裝置（110）扮演一藍牙微網中的一藍牙主裝置（Bluetooth Central），而該第二控制電路（124）還設置成控制該第二藍牙成員裝置（120）扮演該藍牙微網中的一藍牙從裝置（Bluetooth Peripheral）； 其中，該音訊廣播裝置（150）在廣播該一或多個低功耗藍牙音訊封包之前，還會先發送一預定音量指示給該第一藍牙成員裝置（110）及該第二藍牙成員裝置（120）； 其中，該第一藍牙通信電路（111）還設置成可接收該預定音量指示，且該第一控制電路（114）還設置成可依據該預定音量指示，控制該第一音訊處理電路（112）預先設置該第一音訊播放電路（113）的一音量大小； 其中，該第二藍牙通信電路（121）還設置成可接收該預定音量指示，且該第二控制電路（124）還設置成可依據該預定音量指示，控制該第二音訊處理電路（122）預先設置該第二音訊播放電路（123）的一音量大小。 A multi-member Bluetooth device, comprising: A first Bluetooth member device (110) comprising: A first Bluetooth communication circuit (111) configured to receive one or more data broadcast by an audio broadcasting device (150) through a Broadcast Isochronous Stream (BIS) logical transport channel (logical transport) Bluetooth low energy audio packets; a first audio processing circuit (112); and A first control circuit (114), coupled to the first Bluetooth communication circuit (111) and the first audio processing circuit (112), configured to parse the one received by the first Bluetooth communication circuit (111) or a plurality of low-power Bluetooth audio packets to obtain a predetermined audio data, and instruct the first audio processing circuit (112) to control a first audio playback circuit (113) to play the predetermined audio data; and A second Bluetooth member device (120) comprising: a second bluetooth communication circuit (121) configured to receive the one or more low-power bluetooth audio packets broadcast by the audio broadcast device (150) through the broadcast isochronous streaming logical transmission channel; a second audio processing circuit (122); and A second control circuit (124), coupled to the second Bluetooth communication circuit (121) and the second audio processing circuit (122), configured to parse the one received by the second Bluetooth communication circuit (121) or a plurality of low-power Bluetooth audio packets to obtain the predetermined audio data, and instruct the second audio processing circuit (122) to control a second audio playback circuit (123) to play the predetermined audio data; The first control circuit (114) is further configured to control the first Bluetooth member device (110) to act as a Bluetooth central device (Bluetooth Central) in a Bluetooth micro-mesh, and the second control circuit (124) is further configured to to control the second Bluetooth member device (120) to act as a Bluetooth Peripheral in the Bluetooth piconet; Wherein, before broadcasting the one or more BLE audio packets, the audio broadcasting device (150) also sends a predetermined volume indication to the first Bluetooth member device (110) and the second Bluetooth member device ( 120); Wherein, the first Bluetooth communication circuit (111) is further configured to receive the predetermined volume indication, and the first control circuit (114) is further configured to control the first audio processing circuit (112) according to the predetermined volume indicator Preset a volume level of the first audio playback circuit (113); Wherein, the second Bluetooth communication circuit (121) is further configured to receive the predetermined volume indication, and the second control circuit (124) is further configured to control the second audio processing circuit (122) according to the predetermined volume indicator A volume level of the second audio playback circuit (123) is preset. 如請求項6所述的多成員藍牙裝置，其中，該第一藍牙通信電路（111）還設置成可接收該音訊廣播裝置（150）發出的一或多個預定資料項目，且該第一控制電路（114）還設置成可解析該一或多個預定資料項目以獲取該預定音量指示，並可依據該預定音量指示控制該第一音訊處理電路（112）設置該第一音訊播放電路（113）的一增益值； 其中，該第二藍牙通信電路（121）還設置成可接收該音訊廣播裝置（150）發出的該一或多個預定資料項目，且該第二控制電路（124）還設置成可解析該一或多個預定資料項目以獲取該預定音量指示，並可依據該預定音量指示控制該第二音訊處理電路（122）設置該第二音訊播放電路（123）的一增益值。 The multi-member Bluetooth device according to claim 6, wherein the first Bluetooth communication circuit (111) is further configured to receive one or more predetermined data items sent by the audio broadcasting device (150), and the first control The circuit (114) is further configured to parse the one or more predetermined data items to obtain the predetermined volume indication, and to control the first audio processing circuit (112) to set the first audio playback circuit (113) according to the predetermined volume indication ) of a gain value; Wherein, the second Bluetooth communication circuit (121) is further configured to receive the one or more predetermined data items sent by the audio broadcasting device (150), and the second control circuit (124) is further configured to analyze the one or more predetermined data items. or a plurality of predetermined data items to obtain the predetermined volume indication, and can control the second audio processing circuit (122) to set a gain value of the second audio playback circuit (123) according to the predetermined volume indication. 如請求項7所述的多成員藍牙裝置，其中，該一或多個預定資料項目，是選自於下列項目所形成的一群組： 一或多個廣告指示（advertising indication，ADV_IND）封包； 一或多個不可連接廣告指示（non-connectable advertising indication，ADV_NONCONN_IND）封包； 一或多個可查廣告指示（discoverable advertisement indication，ADV_DISCOVER_IND）封包； 一或多個廣播等時串流協定資料單元（BIS protocol data unit）；以及 一或多個廣播等時群組協定資料單元（BIG protocol data unit）。 The multi-member Bluetooth device of claim 7, wherein the one or more predetermined data items are selected from a group formed by the following items: one or more advertising indication (ADV_IND) packets; One or more non-connectable advertising indication (ADV_NONCONN_IND) packets; One or more discoverable advertisement indication (ADV_DISCOVER_IND) packets; one or more broadcast isochronous streaming protocol data units (BIS protocol data units); and One or more broadcast isochronous group protocol data units (BIG protocol data units). 如請求項7所述的多成員藍牙裝置，其中，該一或多個預定資料項目，是選自於下列項目所形成的一群組： 一或多個輔助廣告指示（auxiliary advertising indication，AUX_ADV_IND）封包； 一或多個廣告拓展指示（extended advertising indication，ADV_EXT_IND）封包； 一或多個輔助鏈接指示（auxiliary chain indication，AUX_CHAIN_IND）封包； 一或多個輔助掃描回應（auxiliary scan response，AUX_SCAN_RSP）封包； 一或多個輔助同步指示（auxiliary synchronous indication，AUX_SYNC_IND）封包； 一或多個廣播等時串流協定資料單元；以及 一或多個廣播等時群組協定資料單元。 The multi-member Bluetooth device of claim 7, wherein the one or more predetermined data items are selected from a group formed by the following items: one or more auxiliary advertising indication (AUX_ADV_IND) packets; one or more extended advertising indication (ADV_EXT_IND) packets; one or more auxiliary chain indication (AUX_CHAIN_IND) packets; One or more auxiliary scan response (auxiliary scan response, AUX_SCAN_RSP) packets; one or more auxiliary synchronous indication (AUX_SYNC_IND) packets; one or more broadcast isochronous streaming protocol data units; and One or more broadcast isochronous group agreement data units. 如請求項7所述的多成員藍牙裝置，其中，該一或多個預定資料項目，是選自於下列項目所形成的一群組： 一或多個廣告指示封包； 一或多個不可連接廣告指示封包； 一或多個可查廣告指示封包； 一或多個輔助廣告指示封包； 一或多個廣告拓展指示封包； 一或多個輔助鏈接指示封包； 一或多個輔助掃描回應封包； 一或多個輔助同步指示封包； 一或多個廣播等時串流協定資料單元；以及 一或多個廣播等時群組協定資料單元。 The multi-member Bluetooth device of claim 7, wherein the one or more predetermined data items are selected from a group formed by the following items: one or more advertising instruction packets; one or more unconnectable advertising indication packets; one or more searchable advertisement instruction packets; one or more ancillary advertising indication packets; one or more ad extension instruction packets; one or more secondary link indication packets; one or more auxiliary scan response packets; one or more auxiliary synchronization indication packets; one or more broadcast isochronous streaming protocol data units; and One or more broadcast isochronous group agreement data units.
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