CN211578369U

CN211578369U - Audio equipment

Info

Publication number: CN211578369U
Application number: CN202020036578.3U
Authority: CN
Inventors: 童伟峰; 张亮; 郑立科; 杨磊; 陈俊
Original assignee: Bestechnic Shanghai Co Ltd
Current assignee: Bestechnic Shanghai Co Ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-09-25
Anticipated expiration: 2030-01-08

Abstract

The application provides an audio device comprising: the first MIC module receives an audio signal of a user; the first A/D converter module is connected with the first MIC module and used for carrying out analog-to-digital conversion on the audio signal; the first voice recognition module is connected with the first A/D converter module and used for carrying out voice recognition on the audio signal subjected to analog-to-digital conversion to generate a first control instruction; the Type-C connector module is connected with the first voice recognition module and the audio source, acquires a first control instruction from the first voice recognition module and sends the first control instruction to the audio source, so that the audio source performs corresponding operation according to the first control instruction, and receives an audio signal to be played from the audio source. This application is connected the HiFi audio that can realize the audio playback through Type-C connector module and audio source, makes the user need not to go to audio source department alright realization control audio source through the audio signal of first speech recognition module identification user.

Description

Audio equipment

Technical Field

The application relates to the field of electronic equipment, in particular to audio equipment.

Background

An existing audio/video system is generally connected with an intelligent device (such as a television, a mobile phone, an intelligent box, and the like) through a wired connection, and is connected with a sound box through an analog audio cable, and the audio/video system receives an audio signal from the intelligent device and sends the audio signal to the sound box through the audio cable for playing. The start, pause or end of the audio-visual system play is typically controlled by a remote control. However, the existing wired connection between the audio/video system and the smart device usually cannot realize HiFi sound, and the wired connection between the audio/video system and the sound box makes the audio/video system usually play audio only through the sound box wired to the audio/video system, which limits the use of the audio/video system, and for switching audio/video, the user is usually required to operate the smart device to realize the switching. These all bring inconvenience to the user.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide an audio equipment for improve among the prior art audio equipment can't realize the HiFi audio when playing the audio frequency, and the control of audio frequency broadcast is convenient problem inadequately.

The application provides an audio device comprising: the first MIC module is used for receiving an audio signal of a user; the first A/D converter module is connected with the MIC module and is used for carrying out analog-to-digital conversion on the audio signal of the user; the first voice recognition module is connected with the first A/D converter module and used for receiving the audio signal subjected to analog-to-digital conversion from the first A/D converter module and performing voice recognition on the audio signal to generate a first control instruction; and the Type-C connector module is connected with the first voice recognition module and the audio source and used for acquiring a first control instruction from the first voice recognition module and sending the first control instruction to the audio source so that the audio source performs corresponding operation according to the first control instruction, and the Type-C connector module is also used for receiving an audio signal to be played from the audio source.

The audio equipment provided by the application comprises the Type-C connector module, and is connected with an audio source through the Type-C connector module, so that the HiFi sound effect can be realized; and because including first MIC module, first AD converter module and first speech recognition module, first MIC module and first AD converter module are connected, first speech recognition module is connected between first AD converter module and Type-C connector module, can realize receiving user's audio signal through the MIC module, carry out speech recognition and generate control command to audio signal through speech recognition module, control command sends the audio source to through Type-C connector module, so that the audio source carries out corresponding operation according to control command, make the user need not to go to audio source department and carry out corresponding operation from this, can realize remote control audio source, promote user experience.

Furthermore, the audio device further includes a second MIC module, a second a/D converter module, and a noise reduction processing module, where the second a/D converter module is connected between the second MIC module and the noise reduction processing module, the second MIC module is configured to receive an external audio signal, the second a/D converter module is configured to perform analog-to-digital conversion on the audio signal, the noise reduction processing module is further connected to the first a/D converter module, and the noise reduction processing module receives an audio signal of a user subjected to analog-to-digital conversion from the first a/D converter module and receives an audio signal subjected to analog-to-digital conversion from the second a/D converter module to perform noise reduction processing, and sends the audio signal subjected to noise reduction processing to the first voice recognition module.

The audio equipment of this application is owing to include second MIC module and second AD converter module, and second AD converter module is connected between second MIC module and first speech recognition module, from this through first MIC module and second MIC module gather user's audio signal respectively, helps realizing the processing of making an uproar to acquire user's audio signal better.

Further, the audio device further comprises a wireless communication module, connected with the Type-C connector module, and configured to acquire an audio signal from the Type-C connector module and wirelessly transmit the audio signal.

The audio equipment of this application is owing to include wireless communication module, through wireless communication module can realize with other audio playback devices (including wireless audio amplifier, wireless earphone etc.) wireless connection, and because the wireless communication module that wireless communication module and Type-C connector module are connected, can realize with the audio signal wireless transmission that Type-C connector module obtained from the audio source with other audio playback devices of audio equipment wireless connection, promote audio equipment's functional diversity from this.

Furthermore, the audio device further comprises an audio processing module, wherein the audio processing module is connected between the Type-C connector module and the wireless communication module, and is used for processing the audio signal received from the Type-C connector module and then sending the processed audio signal to the wireless communication module for wireless transmission.

The audio equipment of this application is because including the audio frequency processing module of connection between Type-C connector module and wireless communication module, treats through audio frequency processing module that wireless communication module wireless transmission's audio signal handles, on the one hand, can make the audio signal after handling be convenient for wireless communication module and carry out wireless transmission, and on the other hand can guarantee the signal quality of the audio signal through wireless communication module transmission.

Further, the wireless communication module comprises a Bluetooth module, the audio processing module comprises a first audio processing module, and the first audio processing module is connected between the Bluetooth module and the Type-C connector module.

Furthermore, the audio device further comprises an audio compression module connected between the first audio processing module and the bluetooth module, and configured to compress the audio signal processed by the first audio processing module, and send the compressed audio signal to the bluetooth module.

The audio equipment of this application is because including the audio compression module of connection between first audio frequency processing module and bluetooth module, can treat the audio signal through bluetooth module transmission and compress, helps reducing bluetooth module's work load.

Further, the audio device further comprises a second voice recognition module, wherein the second voice recognition module is connected between the bluetooth module and the Type-C connector module, and is configured to perform voice recognition on an audio signal received from the bluetooth module, generate a second control instruction according to a voice recognition result, and send the second control instruction to the Type-C connector module, and the Type-C connector module is further configured to send the second control instruction to the audio source, so that the audio source performs corresponding operations according to the second control instruction.

The audio equipment of this application is owing to be in including connecting bluetooth module with second speech recognition module between the Type-C connector module, can carry out speech recognition to the user's audio signal that bluetooth module is followed other audio playback equipment departments that rather than being connected obtain, and according to speech recognition result generation control command, send control command through Type-C connector module with the audio source of being connected with Type-C connector module in order to control the audio playback of audio source, through setting up the cooperation between second speech recognition module and bluetooth module and the Type-C connector module, can improve user's far away unable through first speech recognition module and MIC module apart from audio equipment, the problem that the audio source carries out control is realized to the cooperation of AD converter module and Type-C connector module.

Further, the wireless communication module further comprises a WiFi module, the audio processing module further comprises a second audio processing module, and the second audio processing module is connected between the Type-C connector module and the WiFi module.

Furthermore, the audio device further comprises a speaker and a D/a converter module, wherein the D/a converter module is connected between the speaker and the Type-C connector module, and is configured to obtain an audio signal from the Type-C connector module, perform digital-to-analog conversion on the audio signal, and transmit the converted audio signal to the speaker for playing.

The audio equipment of this application can realize directly playing the audio signal that Type-C connector module received from the audio source owing to include speaker and connect the D/A converter module between speaker and Type-C connector module.

Furthermore, the audio device further comprises a third audio processing module, wherein the third audio processing module is connected between the D/a converter module and the Type-C connector module, and is configured to process the audio signal received from the Type-C connector module and send the processed audio signal to the D/a converter module.

The audio equipment of this application is owing to including the third audio processing module of connection between D/A converter module and Type-C connector module, helps promoting the quality after the absorption of the audio signal of speaker broadcast.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a block diagram of an audio device according to an embodiment of the present disclosure.

Fig. 2 is a circuit connection diagram of an audio processing system according to an embodiment of the present application.

Fig. 3 is an enlarged view of the area a in fig. 2.

Fig. 4 is an enlarged view of the region B in fig. 2.

Fig. 5 is an enlarged view of the region C in fig. 2.

Fig. 6 is an enlarged view of the area D in fig. 2.

Icon: audio device-100; terminal equipment-200; wireless headphones-311, 312; wireless sound box-32 audio processing system-10; a speaker-30; a first microphone-51; a second microphone-52; a first MIC module-111; a second MIC module-112; a first A/D converter module-121; a second A/D converter module-122; a first speech recognition module-131; a second speech recognition module-132; Type-C connector module-14; a Bluetooth module-151; a WiFi module-152; a first audio processing module-161; a second audio processing module-162; a third audio processing module 163; an audio compression module-17; d/a converter module-18; a WiFi antenna 71.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed" and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1, an embodiment of the present application provides an audio apparatus 100. The audio device 100 can be connected to a terminal device 200 such as a mobile phone, a television, a computer, etc. The terminal device 200 transmits an audio signal as an audio source to the audio device 100, so that the audio device 100 plays audio content corresponding to the audio signal. The audio device 100 may also send a control instruction to the terminal device 200, so that the terminal device 200 performs a corresponding operation according to the control instruction. The terminal device 200 performs corresponding operations according to the control instruction, including but not limited to switching the playing content, stopping/starting playing, turning on/off, and the like.

The audio device 100 may be, for example, a smart speaker, a television box, or the like. In this embodiment, the audio device 100 is a smart speaker. The audio device 100 includes an audio processing system 10, and a speaker 30 and a microphone coupled to the audio processing system 10. In the present embodiment, the microphones include a first microphone 51 and a second microphone 52.

The audio processing system 10 may be, for example, a BES2000IWA audio chip.

The circuit diagram of the audio processing system 10 may be, for example, as shown in fig. 2.

Referring to fig. 1 and 2, in the present embodiment, the audio processing system 10 includes a first MIC module 111, a first a/D converter module 121, a first voice recognition module 131, and a Type-C connector module 14. The first A/D converter module 121 is connected between the first speech recognition module 131 and the first MIC module 111. The first voice recognition module 131 is connected between the first a/D converter module 121 and the Type-C connector module 14.

The first MIC module 111 is connected to the first microphone 51, and receives an audio signal of a user and transmits the received audio signal of the user to the first a/D converter module 121. In this embodiment, the first MIC module 111 may be connected to the first microphone 51 through

pins

43 and 44 in fig. 2, for example.

The first a/D converter module 121 is connected to the first MIC module 111, and configured to perform analog-to-digital conversion on the audio signal sent by the first MIC module 111 after receiving the audio signal, and send the audio signal after analog-to-digital conversion to the first speech recognition module 131.

The first voice recognition module 131 is connected to the first a/D converter module 121, and is configured to receive the audio signal subjected to analog-to-digital conversion from the first a/D converter module 121, perform voice recognition on the audio signal subjected to analog-to-digital conversion to generate a first control instruction, and send the first control instruction to the Type-C connector module 14. In this embodiment, the first speech recognition module 131 may be a far-field speech recognition module, which is far away from the user sending the audio signal, for example, several meters away.

The Type-C connector module 14 is connected to the first speech recognition module 131, and is configured to receive a first control instruction from the first speech recognition module 131. The Type-C connector module 14 is further connected to the audio source, and is configured to send the first control instruction to the audio source, so that the audio source performs a corresponding operation according to the first control instruction. It is understood that the operation of the audio source according to the first control instruction includes, but is not limited to, adjusting the volume, turning on/off, switching the playing content, and so on. The Type-C connector module 14 is also used to receive audio signals to be played from an audio source. In this embodiment, the Type-C connector module 14 can be connected to the audio source, for example, through pins 33-36 in FIG. 2. It is understood that the audio signals received by the Type-C connector module 14 from the audio source include, but are not limited to, 4-channel audio signals, 5.1-channel audio signals, 6.1-channel audio signals, 7.1-channel audio signals, and the like.

The audio device 100 provided by the embodiment includes the Type-C connector module 14, and is connected with an audio source through the Type-C connector module 14 to facilitate the implementation of HiFi sound effects; and because including first MIC module 111, first AD converter module 121 and first speech recognition module 131, first MIC module 111 is connected with first AD converter module 121, first speech recognition module 131 is connected between first AD converter module 121 and Type-C connector module 14, can realize receiving user's audio signal through the MIC module, carry out speech recognition and generate control command to audio signal through speech recognition module, control command transmits the audio source through Type-C connector module 14 to make the audio source carry out corresponding operation according to control command, make the user need not to go to audio source department and carry out corresponding operation from this, can realize remote control audio source, promote user experience.

In this embodiment, the audio device 100 may further include a second MIC module 112, a second a/D converter module 122, and a noise reduction processing module 25. The second A/D converter module 122 is connected between the second MIC module 112 and the noise reduction processing module 125. The second MIC module 112 is connected to the second microphone 52, and is configured to receive the audio signal of the user collected by the second microphone 52 and send the received audio signal to the second a/D converter module 122. In this embodiment, the second MIC module 112 may be coupled to the second microphone 52, for example, via

pins

45 and 46 of FIG. 2. The second a/D converter module 122 is configured to receive the audio signal collected by the second MIC module 112, perform analog-to-digital conversion on the audio signal, and send the analog-to-digital converted audio signal to the noise reduction processing module 125. In this embodiment, the noise reduction processing module 125 is further connected to the first a/D converter module 121, and is configured to receive the audio signal after analog-to-digital conversion by the first a/D converter module 121. The noise reduction processing module 125 performs noise reduction processing on the audio signal based on the analog-to-digital converted audio signal received from the first a/D converter module 121 and the analog-to-digital converted audio signal received from the second a/D converter module 122. The noise reduction module 125 is connected to the first speech recognition module 131, and sends the noise-reduced audio signal to the first speech recognition module 131 for speech recognition. In this embodiment, a first down-sampling module 123 is further connected between the noise reduction processing module 125 and the first a/D converter module 121, and is configured to perform down-sampling processing on the audio signal after analog-to-digital conversion by the first a/D converter module 121, so as to improve a signal-to-noise ratio corresponding to the audio signal. A second down-sampling module 124 is further connected between the noise reduction processing module 125 and the second a/D converter module 122, and is configured to perform down-sampling processing on the audio signal after analog-to-digital conversion by the second a/D converter module 124, so as to improve a signal-to-noise ratio corresponding to the audio signal.

The first speech recognition module 131 may receive the audio signal after performing noise reduction processing on the audio signal of the user based on the audio signal sent by the first a/D converter module 121 and the audio signal sent by the second a/D converter module 122 from the noise reduction processing module 125, and then perform keyword recognition and speech recognition processing on the audio signal of the user after performing noise reduction processing, thereby facilitating better obtaining of the audio signal of the user and avoiding noise from interfering with recognition of the audio signal of the user.

It is understood that the first speech recognition module 131 may also perform Voice Activity Detection (VAD) on the received audio signal sent by the first a/D converter module 121 and/or the second a/D converter module 122 before performing speech recognition on the audio signal of the user according to the received audio signal sent by the first a/D converter module 121 and/or the second a/D converter module 122, so as to avoid the problem of wasted power consumption caused by performing speech recognition directly when the MIC module receives an audio signal that is not the user.

It can be understood that, before performing speech recognition on the audio signal of the user according to the received audio signal sent by the first a/D converter module 121 and/or the second a/D converter module 122, the first speech recognition module 131 may also perform audio recovery cancellation processing on the audio signal sent by the first a/D converter module 121 and/or the second a/D converter module 122 to reduce the influence of the played audio on the speech recognition result of the audio signal of the user.

In this embodiment, the audio device 100 may further include a wireless communication module connected with the Type-C connector module 14. The audio apparatus 100 can be connected with a third party electronic apparatus (i.e., other electronic apparatuses than the audio apparatus 100 and the terminal apparatus 200 connected with the audio apparatus 100) through the wireless communication module. The Type-C connector module 14 can be wirelessly transmitted to the third-party electronic device through the wireless communication module from the audio source, and the third-party electronic device can play audio content corresponding to the audio signal after receiving the audio signal. The third party electronic device may be, for example, a wireless headset, a wireless sound box, etc.

The wireless communication module may be, for example, a bluetooth module 151, a WiFi module 152, or the like. The wireless communication module is configured to obtain an audio signal from the Type-C connector module 14 and wirelessly transmit the audio signal. The audio device 100 can send the audio signal acquired by the Type-C connector module 14 from the audio source to a third-party electronic device (e.g.,

wireless earphones

311, 312 or wireless sound box 32) through the wireless communication module for playing, so that the audio device 100 is not limited to playing audio through the sound box provided by itself or connected with itself through a wire, thereby improving the functional diversity of the audio device 100.

It will be appreciated that the audio device 100 may also include an audio processing module connected between the Type-C connector module 14 and the wireless communication module. The audio processing module is configured to process an audio signal received from the Type-C connector module 14 and send the processed audio signal to the wireless communication module for wireless transmission. It will be appreciated that the audio processing module processes the audio signal received from the Type-C connector module 14 including, but not limited to, audio equalization, volume adjustment, Dynamic Range Control (DRC), audio upsampling and filtering, Audio SDM (Sigma-Delta modulation) modulation, and the like. In this embodiment, the audio signal to be wirelessly transmitted by the wireless communication module is processed by the audio processing module, so that on one hand, the processed audio signal can be wirelessly transmitted by the wireless communication module conveniently, and on the other hand, the signal quality of the audio signal transmitted by the wireless communication module can be ensured.

In this embodiment, the wireless communication module includes a bluetooth module 151. The audio processing module includes a first audio processing module 161. The first audio processing module 161 is connected between the bluetooth module 151 and the Type-C connector module 14. The Type-C connector module 14 selects two audio signals among the audio signals received from the audio sources to send to the first audio processing module 161. The first audio processing module 161 processes the two audio signals (for example, audio equalization, volume adjustment, DRC, etc.), and then sends the processed audio signals to the bluetooth module 151. The bluetooth module 151 may send the received processed audio signal to the

wireless earphones

311 and 312 or the wireless speaker 32 connected to the audio device 100 via the bluetooth antenna for playing. Of course, the bluetooth module 151 may also receive a voice signal transmitted when the

wireless earphones

311 and 312 or the wireless sound box 32 bluetooth-connected to the audio device 100 receive the audio signal of the user.

In this embodiment, the first audio processing module 161 may include a first sampling rate conversion sub-module and a first audio equalization sub-module connected to the first sampling rate conversion sub-module. The first sample rate conversion sub-module is connected to the Type-C connector module 14 for unifying the sample rate of the audio signal received from the Type-C connector module 14 to suppress the occurrence of noise and harmonics. The first audio equalization sub-module is connected between the first sampling rate conversion sub-module and the bluetooth module 151, and is configured to adjust a frequency of the audio signal processed by the first sampling rate sub-module to compensate for a defect of the sound field. It should be understood that this is only an example of the structure of the first audio processing module 161, and in other embodiments, the first audio processing module 17 may further include other sub-modules, which is not limited in this application.

In this embodiment, the audio device 100 further includes an audio compression module 17 connected between the first audio processing module 161 and the bluetooth module 151. In this embodiment, the audio compression module 17 is connected to the first audio equalization submodule of the first audio processing module 161. The audio compression module 17 may be, for example, an AAC audio compression module, an SBC audio compression module, an Opus audio compression module, or the like. The audio compression module 17 is configured to compress the audio signal processed by the first audio processing module 161, and send the compressed audio signal to the bluetooth module 151. In this embodiment, the audio compression module 17 compresses the audio signal to be transmitted by the bluetooth module 151, which is helpful to reduce the workload of the bluetooth module 151.

In this embodiment, the audio device 100 further includes a second speech recognition module 132 connected between the Bluetooth module 151 and the Type-C connector module 14. In this embodiment, the second speech recognition module 132 may be a near field and speech recognition module, and is configured to perform speech recognition on a speech signal sent to the bluetooth module 151 by a third-party electronic device (e.g., the

wireless headset

311, 312 or the wireless sound box 32) connected to the speech device in a bluetooth manner when receiving an audio signal (a near field audio signal) of the user (i.e., the audio signal of the user received by the third-party electronic device is a near field audio signal because the third-party electronic device is close to the user, for example, less than 20 cm), generate a second control instruction according to a speech recognition result, and send the second control instruction to the Type-C connector module 14. The Type-C connector module 14 is further configured to send a second control instruction to the audio source, so that the audio source performs a corresponding operation according to the second control instruction.

It will be appreciated that since the

wireless earphones

311, 312 are typically worn by the user during use, and the user may be positioned nearby (within the bluetooth signal range) for the wireless loudspeaker 32 as desired by the user, and the

wireless earphones

311, 312 or the wireless loudspeaker 32 is typically provided with a microphone, the audio signal of the user may be received nearby by the

wireless earphones

311, 312 or the wireless loudspeaker 32, processed to generate a voice signal, and sent to the audio device 100. The second speech recognition module 132 in the audio device 100 can perform speech recognition on the speech signal received by the bluetooth module 151 to generate a control instruction, and send the control instruction to the audio source connected to the Type-C connector module 14 via the Type-C connector module 14 to control audio playing of the audio source. Therefore, the problem that the audio source cannot be controlled by the first voice recognition module 131 and the MIC module, the A/D converter module and the Type-C connector module 14 when the user is far away from the audio device 100 can be avoided.

In this embodiment, the audio device 100 further includes a WiFi antenna 71. The audio device 100 is connected to a third party electronic device (e.g., wireless sound box 32) through a WiFi antenna 71. The WiFi antenna 71 may be, for example, a 2.4G WiFi antenna or a 5G WiFi antenna. The wireless communication module also includes a WiFi module 152. Accordingly, the WiFi module 152 may be, for example, a 2.4G WiFi module or a 5G WiFi module. The WiFi module 152 may be connected to the WiFi antenna 71, for example, through pins 7 through 12 in fig. 2. The audio processing module further comprises a second audio processing module 162. The second audio processing module 162 is connected between the Type-C connector module 14 and the WiFi module 152. The Type-C connector module 14 selects two audio signals among the audio signals received from the audio sources to send to the second audio processing module 162. After the two audio signals are processed (for example, audio equalization, volume adjustment, DRC, etc.), the second audio processing module 162 sends the processed audio signals to the WiFi module 152. The WiFi module 152 may send the received processed audio signal to the WiFi antenna 71, and the WiFi antenna 71 sends the processed audio signal to the wireless sound box 32 wirelessly connected to the audio device 100 for playing. Since audio transmission requires low latency and WIFI transmission bandwidth is high, WIFI module 152 may send uncompressed audio data to wireless sound box 32.

In this embodiment, the second audio processing module 162 may include a second sampling rate conversion sub-module and a second audio equalization sub-module connected to the second sampling rate conversion sub-module. The second sample rate conversion sub-module is connected to the Type-C connector module 14 for unifying the sample rate of the audio signal received from the Type-C connector module 14 to suppress the occurrence of noise and harmonics. The second audio equalization submodule is connected between the second sampling rate conversion submodule and the WIFI module 152, and is configured to adjust a frequency of the audio signal processed by the second sampling rate conversion submodule, so as to compensate for a defect of the sound field. It is understood that this is merely an example of the structure of the second audio processing module 162, and in other embodiments, the second audio processing module 162 may further include other sub-modules, which is not limited in this application.

In this embodiment, the audio device 100 may further include a D/a converter module 18 connected between the Type-C connector module 14 and the speaker 30. The D/a converter module 18 may be connected to the speaker 30, for example, through pins 39 through 42 in fig. 2. The Type-C connector module 14 selects two audio signals among the audio signals received from the audio source and sends them to the D/a converter module 18 for digital-to-analog conversion. The D/a converter module 18 sends the digital-to-analog converted audio signal to the speaker 30 for playback. By providing the D/a converter module 18 between the speaker 30 and the Type-C connector module 14, it is possible to directly play audio signals received by the Type-C connector module 14 from an audio source.

It will be appreciated that the audio device 100 also includes a third audio processing module 163 connected between the D/a converter module 18 and the Type-C connector module 14. The third audio processing module 163 is used to process (including but not limited to audio equalization, volume adjustment, DRC, audio upsampling and filtering) the audio signal received from the Type-C connector module 14 and send it to the D/a converter module 18. In this embodiment, the third audio processing module 163 processes the audio signal sent by the Type-C connector module 14 to the D/a converter module 18, which is helpful to improve the quality of the audio signal played through the speaker 30 after being absorbed.

In this embodiment, the third audio processing module 163 may include a third sampling rate conversion sub-module, a third audio equalization sub-module connected to the third sampling rate conversion sub-module, and a DRC (dynamic range Control) sub-module connected to the third audio equalization sub-module. The third sample rate conversion sub-module is connected to the Type-C connector module 14 for unifying the sample rate of the audio signal received from the Type-C connector module 14 to suppress the occurrence of noise and harmonics. And the third audio equalization submodule is connected between the third sampling rate conversion submodule and the DRC submodule and is used for adjusting the frequency of the audio signal processed by the third sampling rate submodule so as to compensate the defects of the sound field. The DRC sub-module is connected between the third audio equalization sub-module and the D/A converter module 18 and is used for matching the level of the audio signal adjusted by the third audio equalization sub-module according to the environment and improving the sound effect; realizing the amplitude protection of the loudspeaker; using the audio signal to a full dynamic range; and suppress low-level noise, etc. It should be understood that this is merely an example of the structure of the third audio processing module 163, and in other embodiments, the second audio processing module 162 may further include other sub-modules, which is not limited in this application.

It is understood that in other embodiments, the bluetooth module 151 is further connected to the first speech recognition module 131, and the first a/D converter module and the second a/D converter module 122 are further connected to the second speech recognition module 132, so that the first speech recognition module 131 and the second speech recognition module 132 in the audio processing system 10 can be multiplexed with each other. At this time, the first speech recognition module 131 or the second speech recognition module 132 may be omitted.

Referring to fig. 2-5, the function of some pins of the audio processing system 10 will be described.

Referring to fig. 3, GND (PIN 57), GND (PIN 58), GND (PIN 59), and GND (PIN 60) are ground PIN PINs.

Referring to fig. 4, VOPL (pin 39), VONL (pin 40), VONR (pin 41), and VOPR (pin 42) are respectively connected to the P, N end of the speaker 30.

MICC _ N (pin 43), MICC _ P (pin 44), MICD _ N (pin 45), and MICD _ P (pin 46) are used to connect the P and N terminals of the first and second MIC modules 111 and 112, respectively. The D/a converter module 18 is connected to the two speakers 30 via MICC _ N (pin 43), MICC _ P (pin 44), MICD _ N (pin 45), and MICD _ P (pin 46).

Referring to FIG. 5, in the present embodiment, the Type-C connector module 14 is connected to the audio source through USB _ DP (pin 36), USB _ DN (pin 35), RESET (pin 34), PWEKEY (pin 33), and VBAT _ SENSE (pin 32).

VCHG _ R (PIN No. 30) is a charging PIN.

Referring to fig. 3, 4 and 6 together, pins 2, 3 and 4, GPIO _31 (pin 15), GPIO _30 (pin 16), GPIO _27 (pin 17), GPIO _26 (pin 18), GPIO _25 (pin 19), GPIO _24/GPIO _47 (pin 20), GPIO _16 (pin 21), GPIO _06/15 (pin 22), VIO (pin 23), GPIO _04/14 (pin 24), GPIO _45 (pin 50), GPIO _46 (pin 51), GPIO _44 (pin 52), and GPIO _42 (pin 53) are GPIO interfaces and general I/O ports.

Referring to fig. 6, RF _5G (pin 7) is a 5G antenna interface, and RF _2.4G (pin 10) is a 2.4G antenna interface. WIFI module 152 connects to the WIFI antenna through RF _5G (pin No. 7) and/or RF _2.4G (pin No. 10), and/or bluetooth module 151 connects to the bluetooth antenna through RF _5G (pin No. 7) and/or RF _2.4G (pin No. 10).

It is understood that, in the embodiment of the present application, a specific connection manner between two connected modules in the audio processing system 10 may be performed by referring to a common connection manner of corresponding modules in the art, and the present application does not limit this connection manner as long as the functions described in the foregoing embodiments can be implemented.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An audio device, comprising:

the first MIC module is used for receiving an audio signal of a user;

the first A/D converter module is connected with the first MIC module and used for carrying out analog-to-digital conversion on the audio signal;

the first voice recognition module is connected with the first A/D converter module and used for receiving the audio signal subjected to analog-to-digital conversion from the first A/D converter module and performing voice recognition on the audio signal to generate a first control instruction; and

the Type-C connector module is connected with the first voice recognition module and the audio source and used for acquiring a first control instruction from the first voice recognition module and sending the first control instruction to the audio source so that the audio source can perform corresponding operation according to the first control instruction, and the Type-C connector module is further used for receiving an audio signal to be played from the audio source.

2. The audio device of claim 1, further comprising a second MIC module, a second A/D converter module, and a noise reduction processing module, the second A/D converter module is connected between the second MIC module and the noise reduction processing module, the second MIC module is used for receiving an external audio signal, the second A/D converter module is used for carrying out analog-to-digital conversion on the audio signal, the noise reduction processing module is further connected with the first A/D converter module, and performs noise reduction processing based on the audio signal of the user received from the first A/D converter module and the audio signal received from the second A/D converter module, and sends the audio signal subjected to noise reduction processing to the first voice recognition module.

3. The audio device of claim 1, further comprising a wireless communication module, connected to the Type-C connector module, for acquiring an audio signal from the Type-C connector module and wirelessly transmitting the audio signal.

4. The audio device of claim 3, further comprising an audio processing module, connected between the Type-C connector module and the wireless communication module, for processing the audio signal received from the Type-C connector module and sending the processed audio signal to the wireless communication module for wireless transmission.

5. The audio device of claim 4, wherein the wireless communication module comprises a Bluetooth module, and wherein the audio processing module comprises a first audio processing module connected between the Bluetooth module and the Type-C connector module.

6. The audio device according to claim 5, further comprising an audio compression module connected between the first audio processing module and the bluetooth module, for compressing the audio signal processed by the first audio processing module and sending the compressed audio signal to the bluetooth module.

7. The audio device according to claim 5, wherein the audio device further comprises a second voice recognition module, the second voice recognition module is connected between the bluetooth module and the Type-C connector module, and configured to perform voice recognition on the audio signal received from the bluetooth module, generate a second control instruction according to a voice recognition result, and send the second control instruction to the Type-C connector module, and the Type-C connector module is further configured to send the second control instruction to the audio source, so that the audio source performs corresponding operation according to the second control instruction.

8. The audio device of claim 5, wherein the wireless communication module further comprises a WiFi module, and wherein the audio processing module further comprises a second audio processing module connected between the Type-C connector module and the WiFi module.

9. The audio device of claim 1, further comprising a D/a converter module connected to the speaker, for obtaining the audio signal from the Type-C connector module, performing digital-to-analog conversion on the audio signal, and transmitting the converted audio signal to the speaker for playing.

10. The audio device of claim 9, further comprising a third audio processing module connected between the D/a converter module and the Type-C connector module, for processing the audio signal received from the Type-C connector module and transmitting the processed audio signal to the D/a converter module.