CN203193859U - Bluetooth audio system with telephone recording function - Google Patents
Bluetooth audio system with telephone recording function Download PDFInfo
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- CN203193859U CN203193859U CN 201320136850 CN201320136850U CN203193859U CN 203193859 U CN203193859 U CN 203193859U CN 201320136850 CN201320136850 CN 201320136850 CN 201320136850 U CN201320136850 U CN 201320136850U CN 203193859 U CN203193859 U CN 203193859U
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Abstract
The utility model provides a Bluetooth audio system with a telephone recording function. The system comprises a Bluetooth module used for receiving a first voice data signal from an external device, an audio output module used for outputting the first voice data signal, a loudspeaker used for broadcasting a first voice signal, a microphone used for acquiring a user voice signal, an analog-to-digital conversion module used for converting the user voice signal into a second voice digital signal and sending the second voice digital signal out through the Bluetooth module, a data merging module connected with the Bluetooth module and used for merging a second voice signal input by the Bluetooth module and a first voice signal output by the Bluetooth module into one channel of audio signals, an audio data encoding and decoding module connected with the data merging module and used for compressing and encoding audio signals into an audio file or uncompressing and decoding an audio file into audio signals, and a non-volatile memory connected with the audio data encoding and decoding module and used for storing an audio file. According to the utility model, telephone recording and telephone recording playback functions are achieved on the Bluetooth audio system.
Description
Technical field
The utility model relates to and belongs to the electronic communication field, relates to a kind of bluetooth sound equipment, particularly relates to a kind of bluetooth sound system with recording function of telephone.
Background technology
Along with popularizing of intelligent terminal, popularity rate and the acceptance of ANTENN AUDIO are more and more higher now, and bluetooth sound equipment particularly more and more is familiar with for masses and is liked.A lot of bluetooth sound equipments are also simultaneously integrated in the market microphone can connect mobile phone by bluetooth and answer hands-free phone.Important requirement this moment has just put forward: how realizing telephonograph at the bluetooth sound equipment, this application scenario for some for example need to a hook at the end telephonograph evidence or videoconference records is all extremely important.Traditional landline telephone has solved the telephonograph problem, but does not address this problem on the sound equipment with bluetooth handsfree telephony feature at present.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of bluetooth sound system with recording function of telephone, is used for solving the problem that there is not sound-recording function in prior art bluetooth sound system.
Reach other relevant purposes for achieving the above object, the utility model provides a kind of bluetooth sound system with recording function of telephone.
Described bluetooth sound system with recording function of telephone comprises: bluetooth module, and the audio frequency output module, loud speaker, microphone, analog-to-digital conversion module, data merge module, voice data coding/decoding module, nonvolatile memory; Described bluetooth module receives first speech data signal from external equipment; Described audio frequency output module links to each other with described bluetooth module, exports described first speech data signal; Described loud speaker links to each other with described audio frequency output module, plays described first voice signal; Described microphone is gathered user voice signal; Described analog-to-digital conversion module links to each other respectively with described bluetooth module with described microphone, described user voice signal is converted to second voice digital signal, and sends by described bluetooth module; Described data merge module and link to each other with described bluetooth module, and second voice signal of described bluetooth module input and first voice signal of output are merged into one tunnel audio signal; Described voice data coding/decoding module merges module with described data and links to each other, and to carry out compressed encoding be audio file or audio file is decoded as audio signal with described audio signal; Described nonvolatile memory links to each other with described voice data coding/decoding module, stores described audio file.
Preferably, described bluetooth sound system with recording function of telephone also comprises an echo cancellation module, and described echo cancellation module links to each other respectively with bluetooth module with described analog-to-digital conversion module, and described second voice digital signal is carried out echo filtering.
Preferably, described data merging module comprises: volume gain adjustment module, laminating module; Described volume gain adjustment module links to each other respectively with the output of described echo cancellation module and the input of described audio frequency output module, regulates the volume of described second voice digital signal and first voice digital signal and guarantees that amplitude can be flux matched; Described laminating module links to each other with described volume gain adjustment module, second voice digital signal and first voice digital signal after the point-to-point stack coupling, output PCM signal.
Preferably, described bluetooth sound system with recording function of telephone also comprises: central controller, memory modules, user's input module, display module, power module; Described central controller merges module with described data and links to each other, and the control data merge module to the merging process of voice signal; Described memory modules links to each other with described central controller; Described user's input module links to each other with described central controller, and the input user is to the operational order of bluetooth sound system; Described display module links to each other with described central controller, shows current information and the operating state of bluetooth sound system; Described power module links to each other with described central controller, is the power supply of bluetooth sound system.
Preferably, described nonvolatile memory comprises the NAND Flash chip that is built in the described bluetooth sound system, and external USB hard disk is or/and SD card, mmc card, Memory stick memory stick, CF card, TF card.
Preferably, described user's input module is that button is or/and remote controller.
Preferably, described bluetooth module comprises that one provides first clock module in clock source for described bluetooth module.
Preferably, described analog-to-digital conversion module comprises: second clock module, dynamic clock fine setting module; Described second clock module is for described analog-to-digital conversion module provides the clock source; Described dynamic clock fine setting module links to each other respectively with first clock module with described second clock module, and it is consistent in the data bit rate coupling with first clock module to control described second clock module.
As mentioned above, the bluetooth sound system with recording function of telephone described in the utility model has following beneficial effect:
The utility model can be implemented in realizes telephonograph and telephonograph playback function on the bluetooth sound equipment, simple to operate, with low cost, brings great advantage to the user.
Description of drawings
Fig. 1 is the structural representation with bluetooth sound system of recording function of telephone described in the utility model.
Fig. 2 is the structural representation of bluetooth module described in the utility model.
Fig. 3 is the structural representation of analog-to-digital conversion module described in the utility model.
Fig. 4 is the structural representation that data described in the utility model merge module.
Fig. 5 is the recording schematic flow sheet with bluetooth sound system of recording function of telephone described in the utility model.
Fig. 6 is the playback recording schematic flow sheet with bluetooth sound system of recording function of telephone described in the utility model.
The element numbers explanation
100 bluetooth sound systems
101 bluetooth modules
1,011 first clock modules
102 audio frequency output modules
103 loud speakers
104 microphones
105 analog-to-digital conversion modules
1051 second clock modules
1052 dynamic clocks fine setting module
106 echo cancellation module
107 data merge module
1071 volume gain adjustment modules
1072 laminating modules
108 voice data coding/decoding modules
109 nonvolatile memories
110 central controllers
111 memory modules
112 user's input modules
113 display modules
114 power modules
Embodiment
Below by particular specific embodiment execution mode of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
See also accompanying drawing.Notice, the appended graphic structure that illustrates of this specification, ratio, size etc., equal contents in order to cooperate specification to disclose only, understand and reading for person skilled in the art scholar, be not in order to limit the enforceable qualifications of the utility model, so technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not influencing under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and get in the scope that can contain.Simultaneously, quote in this specification as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under no essence change technology contents, when also being considered as the enforceable category of the utility model.
Embodiment
Present embodiment provides a kind of bluetooth sound system with recording function of telephone, as shown in Figure 1, described bluetooth sound system 100 with recording function of telephone comprises: bluetooth module 101, audio frequency output module 102, loud speaker 103, microphone 104, analog-to-digital conversion module 105, echo cancellation module 106, data merge module 107, voice data coding/decoding module 108, nonvolatile memory 109, central controller 110, memory modules 111, user's input module 112, display module 113, power module 114.
First speech data signal that described bluetooth module 101 receives from external equipment.Described bluetooth module 101 is supported HFP(Hand Free Profile, handsfree protocol) agreement, so on sound system, can realize the function of answering cell phone phone.Further, as shown in Figure 2, described bluetooth module 101 comprises that one provides first clock module 1011 in clock source for described bluetooth module.
Described audio frequency output module 102 links to each other with described bluetooth module 101, exports described first speech data signal.
Described loud speaker 103 links to each other with described audio frequency output module 102, plays described first voice signal.
Described microphone 104 is gathered user voice signal.
Described analog-to-digital conversion module 105 links to each other respectively with described bluetooth module 101 with described microphone 104, described user voice signal is converted to second voice digital signal, and sends to external equipment by described bluetooth module.Be that described analog-to-digital conversion module 105 is with the simulated audio signal digitlization.Described external equipment is the equipment with radiotelephone communication ability, include but not limited to terminal equipments such as mobile phone, panel computer, such external equipment has the bluetooth linkage function, can carry out being connected of bluetooth HFP agreement with the bluetooth sound system, be implemented in the hand-free call of bluetooth sound system end.Further, as shown in Figure 3, described analog-to-digital conversion module 105 comprises: second clock module 1051, dynamic clock fine setting module 1052; Described second clock module 1051 provides the clock source for described analog-to-digital conversion module 105; Described dynamic clock fine setting module 1052 links to each other respectively with first clock module 1011 with described second clock module 1051, and it is consistent in the data bit rate coupling with first clock module 1011 to control described second clock module 1051.Because first clock module 1011 of bluetooth module 101 is not same clock source with the second clock module 1051 of D/A converter module 105, both have small difference, therefore this module need have dynamic clock fine setting module 1052, to guarantee that digitized second voice digital signal and first voice digital signal mate at data bit rate, after treatment, merge in the module 107 two directly additions of voice digital signal in data.
Described echo cancellation module 106 links to each other respectively with bluetooth module 101 with described analog-to-digital conversion module 105, and described second voice digital signal is carried out echo filtering.The far-end talker's that loud speaker is play sound can combine with local talker's sound and enter microphone, and can send to the far-end talker subsequently, this can be greatly the interfere with communications quality, therefore must suppress as much as possible and the filtering microphone in the far-end talker's that sneaks into sound.Described echo cancellation module can be carried out echo processing to the voice signal that sends, eliminate far-end talker's sound, send to external equipment by bluetooth module again, external equipment just can send simple local talker's sound to the far-end talker by wireless communication module like this.
Described data merge module 107 and link to each other with described bluetooth module 101, and second voice signal of described bluetooth module input and first voice signal of output are merged into one tunnel audio signal.Particularly, described data merge module 107 and link to each other with described echo cancellation module 106, will merge into one tunnel audio signal through first voice digital signal of exporting to described audio frequency output module 102 to second voice digital signal and the bluetooth module 101 of bluetooth module 101 transmission after the echo filtering.Further, as shown in Figure 4, described data merge module 107 and comprise: volume gain adjustment module 1071, laminating module 1072; Described volume gain adjustment module 1071 links to each other respectively with the output of described echo cancellation module 106 and the input of described audio frequency output module 102, regulates the volume of described second voice digital signal and first voice digital signal and guarantees that amplitude can be flux matched; Described laminating module 1072 links to each other with described volume gain adjustment module 1071, second voice digital signal and first voice digital signal after the point-to-point stack coupling, output PCM signal.
Bluetooth module 101 input PCM(pulse code modulation) first voice digital signal of form, second voice digital signal of echo cancellation module 106 input PCM forms.1071 pairs of two-way voice digital signals of volume gain adjustment module that data merge in the module 107 carry out the volume gain adjusting respectively, guarantee that both amplitudes can be flux matched, to improve recording sense of hearing quality.Data merge the direct point-to-point stack of two PCM signals that 1072 pairs of laminating modules in the module 107 regulate after handling and mix, and generate a road final PCM signal and are buffered in the memory modules 111, and are follow-up by 108 processing of voice data coding/decoding module.
Described voice data coding/decoding module 108 merges module 107 with described data and links to each other, and to carry out compressed encoding be audio file or audio file is decoded as audio signal with described audio signal.Described voice data coding/decoding module 108 is audio files storage with audio-frequency signal coding, can reduce the space hold to nonvolatile memory.The form of data compression has a variety of selections, need decide for the requirement of recording tonequality and the amount of capacity of memory according to ability, the user that sound equipment is realized, in the present embodiment, can adopt the mp3 form to compress.Need to use described memory modules 111 to carry out the preservation of data in the process of compression.
Described nonvolatile memory 109 links to each other with described voice data coding/decoding module 108, stores described audio file.Further, described nonvolatile memory 109 can be for being built in the NAND Flash chip in the described bluetooth sound system, external USB hard disk, or/and the SD card, mmc card, Memory stick memory stick, CF card, TF card etc.In the present embodiment, in order to reduce the cost of sound equipment, can adopt external USB disk or SD card to store and preserve the recording data.Such another one benefit is that this memory device can be removed, conveniently preserves sound recordings and backup on computers.
Described central controller 110 merges module 107 with described data and links to each other, and the control data merge module to the merging process of voice signal.
Described memory modules 111 links to each other with described central controller 110, in order to the deal with data of each module of buffer memory.
Described user's input module 112 links to each other with described central controller 110, and the input user is to the operational order of bluetooth sound system.Further, described user's input module 112 is that button is or/and remote controller.
Described display module 113 links to each other with described central controller 110, shows current information and the operating state of bluetooth sound system.
Described power module 114 links to each other with described central controller 110, is the power supply of bluetooth sound system.
The course of work of bluetooth sound system described in the utility model is:
When external equipment (as mobile phone) is sent a telegram here, the bluetooth sound system is set up the hand-free call link by HFP agreement and the mobile phone of bluetooth support, mobile phone is passed to the bluetooth sound system to far-end talker's sound by bluetooth module, the bluetooth sound system receives this voice signal by bluetooth module, and by the audio frequency output module this voice signal is outputed to the loud speaker broadcast.
When the user speaks to the microphone in the bluetooth sound system, carry out analog-to-digital conversion behind the voice signal of the analog-to-digital conversion module reception microphone collection in the bluetooth sound system, echo cancellation module in the bluetooth sound system is carried out echo cancellation process to digitized voice signal, voice data after the processing is transferred to mobile phone by bluetooth module, and mobile phone is transferred to the far-end caller by communication module.
When needs are recorded, the user is by the input of the user's input module in bluetooth sound system telephonograph instruction, central controller is transferred to data with the telephonograph instruction and merges the module execution, data merge module and will merge from the microphone collection and through the echo voice data of eliminating and the voice data that receives the far-end talker who comes from mobile phone, and carry out audio compression, write at last on the bluetooth sound system nonvolatile memory that carry or external, the recording flow process is referring to shown in Figure 5.
When the needs playback is recorded, the user is by the input of the user's input module in bluetooth sound system telephonograph play-back command, central controller is carried out according to the telephonograph play-back command being transferred to the voice data coding/decoding module, the voice data coding/decoding module reads the recording file that is kept on the bluetooth sound system nonvolatile memory that carry or external, decode and exports to loud speaker by the audio frequency output module and play, and playback recording flow process is referring to shown in Figure 6.
The utility model can be realized telephonograph and telephonograph playback function at the bluetooth sound system, and is simple to operate, with low cost, brings great advantage to the user.
In sum, the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can be under spirit of the present utility model and category, and above-described embodiment is modified or changed.Therefore, have in the technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of finishing under spirit that the utility model discloses and the technological thought, must be contained by claim of the present utility model.
Claims (8)
1. the bluetooth sound system with recording function of telephone is characterized in that, described bluetooth sound system with recording function of telephone comprises:
Bluetooth module receives first speech data signal from external equipment;
The audio frequency output module links to each other with described bluetooth module, exports described first speech data signal;
Loud speaker links to each other with described audio frequency output module, plays described first voice signal;
Microphone is gathered user voice signal;
Analog-to-digital conversion module links to each other respectively with described bluetooth module with described microphone, described user voice signal is converted to second voice digital signal, and sends by described bluetooth module;
Data merge module, link to each other with described bluetooth module, and second voice signal of described bluetooth module input and first voice signal of output are merged into one tunnel audio signal;
The voice data coding/decoding module merges module with described data and links to each other, and to carry out compressed encoding be audio file or audio file is decoded as audio signal with described audio signal;
Nonvolatile memory links to each other with described voice data coding/decoding module, stores described audio file.
2. the bluetooth sound system with recording function of telephone according to claim 1, it is characterized in that: described bluetooth sound system with recording function of telephone also comprises an echo cancellation module, described echo cancellation module links to each other respectively with bluetooth module with described analog-to-digital conversion module, and described second voice digital signal is carried out echo filtering.
3. the bluetooth sound system with recording function of telephone according to claim 2 is characterized in that, described data merge module and comprise:
The volume gain adjustment module links to each other respectively with the output of described echo cancellation module and the input of described audio frequency output module, regulates the volume of described second voice digital signal and first voice digital signal and guarantees that amplitude can be flux matched;
Laminating module links to each other with described volume gain adjustment module, second voice digital signal and first voice digital signal after the point-to-point stack coupling, output PCM signal.
4. the bluetooth sound system with recording function of telephone according to claim 1 is characterized in that, described bluetooth sound system with recording function of telephone also comprises:
Central controller merges module with described data and links to each other, and the control data merge module to the merging process of voice signal;
Memory modules links to each other with described central controller;
User's input module links to each other with described central controller, and the input user is to the operational order of bluetooth sound system;
Display module links to each other with described central controller, shows current information and the operating state of bluetooth sound system;
Power module links to each other with described central controller, is the power supply of bluetooth sound system.
5. the bluetooth sound system with recording function of telephone according to claim 4, it is characterized in that: described user's input module is that button is or/and remote controller.
6. the bluetooth sound system with recording function of telephone according to claim 1, it is characterized in that: described nonvolatile memory comprises the NAND Flash chip that is built in the described bluetooth sound system, external USB hard disk is or/and SD card, mmc card, Memory stick memory stick, CF card, TF card.
7. the bluetooth sound system with recording function of telephone according to claim 1 is characterized in that: described bluetooth module comprises that one provides first clock module in clock source for described bluetooth module.
8. the bluetooth sound system with recording function of telephone according to claim 7, it is characterized in that: described analog-to-digital conversion module comprises:
The second clock module is for described analog-to-digital conversion module provides the clock source;
Dynamic clock fine setting module links to each other respectively with first clock module with described second clock module, and it is consistent in the data bit rate coupling with first clock module to control described second clock module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320136850 CN203193859U (en) | 2013-03-22 | 2013-03-22 | Bluetooth audio system with telephone recording function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320136850 CN203193859U (en) | 2013-03-22 | 2013-03-22 | Bluetooth audio system with telephone recording function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293305A (en) * | 2017-06-21 | 2017-10-24 | 惠州Tcl移动通信有限公司 | It is a kind of to improve the method and its device of recording quality based on blind source separation algorithm |
| CN110351419A (en) * | 2018-04-04 | 2019-10-18 | 炬芯（珠海）科技有限公司 | A kind of intelligent voice system and its method of speech processing |
| CN111145776A (en) * | 2018-11-02 | 2020-05-12 | 北京微播视界科技有限公司 | Audio processing method and device |
| CN112151057A (en) * | 2020-11-04 | 2020-12-29 | 苏州思必驰信息科技有限公司 | Echo cancellation method and system |
| CN112261140A (en) * | 2020-10-23 | 2021-01-22 | 深圳市泰祺科技有限公司 | Audio data processing method, device, equipment and storage medium |
-
2013
- 2013-03-22 CN CN 201320136850 patent/CN203193859U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107293305A (en) * | 2017-06-21 | 2017-10-24 | 惠州Tcl移动通信有限公司 | It is a kind of to improve the method and its device of recording quality based on blind source separation algorithm |
| CN110351419A (en) * | 2018-04-04 | 2019-10-18 | 炬芯（珠海）科技有限公司 | A kind of intelligent voice system and its method of speech processing |
| CN111145776A (en) * | 2018-11-02 | 2020-05-12 | 北京微播视界科技有限公司 | Audio processing method and device |
| CN111145776B (en) * | 2018-11-02 | 2021-10-29 | 北京微播视界科技有限公司 | Audio processing method and device |
| CN112261140A (en) * | 2020-10-23 | 2021-01-22 | 深圳市泰祺科技有限公司 | Audio data processing method, device, equipment and storage medium |
| CN112151057A (en) * | 2020-11-04 | 2020-12-29 | 苏州思必驰信息科技有限公司 | Echo cancellation method and system |
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