CN202796042U - Voice recognition system - Google Patents
Voice recognition system Download PDFInfo
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- CN202796042U CN202796042U CN 201220405477 CN201220405477U CN202796042U CN 202796042 U CN202796042 U CN 202796042U CN 201220405477 CN201220405477 CN 201220405477 CN 201220405477 U CN201220405477 U CN 201220405477U CN 202796042 U CN202796042 U CN 202796042U
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Abstract
The present utility model discloses a voice recognition system. The voice recognition system comprises a microphone array for receiving voice signals, converting the voice signals into simulation audio signals and outputting the signals to an audio frequency coding circuit; the audio frequency coding circuit for converting the received simulation audio signals into digital audio signals and outputting the signals to a master control integrated circuit; a Bluetooth emission module for receiving voice signals, converting the signals into digital audio signals and sending the signals to a Bluetooth receiving module through a Bluetooth way; the Bluetooth receiving module for sending the received digital audio signals into a master control integrated circuit; and the master control integrated circuit for selecting the digital audio signals from the audio frequency coding circuit or the digital audio signals from the Bluetooth receiving module to realize voice recognition processing. By adopting the system, problems that in the voice recognition system in which only a microphone array is adopted as audio frequency input, remote voice cannot be recognized can be solved.
Description
Technical field
The utility model relates to the speech recognition technology field, particularly a kind of speech recognition system.
Background technology
Present multiple intelligent audio ﹠ video equipment has all been added speech identifying function.Fig. 1 is the synoptic diagram of the composition structure of existing a kind of audio ﹠ video equipment.As shown in Figure 1, this audio ﹠ video equipment comprises: microphone array 101, audio coding circuit 102, camera 103, video processing circuits 104, main control integrated circuit 105, system master micro-control unit (system master MCU) 106, loudspeaker 107 and display screen 108.
Wherein, microphone array 101 be responsible for voice signals pick up and convert to simulated audio signal after export to audio coding circuit 102, audio coding circuit 102 will carry out numerical coding from the simulated audio signal that microphone array 101 receives, and then export to main control integrated circuit 105; Camera 103 is used for the capturing video signal and exports to video processing circuits 104, and video processing circuits 104 is exported to main control integrated circuit 105 after processing for the signal of camera 103 outputs is encoded; After main control integrated circuit 105 was compiled vision signal and sound signal, the synthesized voice video data stream was exported to system master micro-control unit 106.System master micro-control unit 106 is the core devices of this audio ﹠ video equipment, is responsible for the management of audio, video data link.Become voice signal from the sound signal of system master micro-control unit 106 outputs by audio tweeter 107, the vision signal of exporting from system master micro-control unit 106. shows by display screen 108.In addition, audio ﹠ video equipment shown in Figure 1 also comprises as power circuit of the stable power-supplying of the USB interface of peripheral interface and responsible whole system etc., gives unnecessary details no longer one by one here.
In the existing audio ﹠ video equipment with speech identifying function as shown in Figure 1, no matter adopt full directional microphone array or adopt uni-directional microphone sound array, certain decipherment distance is arranged, thus can only carry out closely speech recognition, and helpless to remote speech.
The utility model content
The utility model provides a kind of speech recognition system, the problem of only having microphone array can't identify remote speech as the speech recognition system of audio frequency input with solution.
For achieving the above object, the technical solution of the utility model is achieved in that
The utility model discloses a kind of speech recognition system, comprising: microphone array, audio coding circuit, main control integrated circuit, bluetooth receiver module and Bluetooth transmission module, wherein:
Microphone array is exported to the audio coding circuit after being used for received speech signal and converting simulated audio signal to;
The audio coding circuit is exported to main control integrated circuit after converting the simulated audio signal that receives to digital audio and video signals;
The Bluetooth transmission module sends to the bluetooth receiver module by bluetooth approach after being used for received speech signal and converting digital audio and video signals to;
The bluetooth receiver module is used for the digital audio and video signals that receives is sent to main control integrated circuit;
Main control integrated circuit is used for selective reception and carries out voice recognition processing from the digital audio and video signals of audio coding circuit or from the digital audio and video signals of bluetooth receiver module.
In above-mentioned speech recognition system, have a bluetooth receiver module and more than one Bluetooth transmission module.
In above-mentioned speech recognition system, described main control integrated circuit has button, and described main control integrated circuit is selected to carry out voice recognition processing from the digital audio and video signals of audio coding circuit or from the digital audio and video signals of bluetooth receiver module to the operation of this button according to the user.
Above-mentioned speech recognition system also comprises: the system master micro-control unit is used for receiving the audio data stream from main control integrated circuit;
This system master micro-control unit has button, and this system master micro-control unit sends to main control integrated circuit the operation of this button according to the user and selects from the instruction of the digital audio and video signals of audio coding circuit or select instruction from the digital audio and video signals of bluetooth receiver module;
Main control integrated circuit is carried out voice recognition processing according to the Instruction Selection of system master micro-control unit from the digital audio and video signals of audio coding circuit or from the digital audio and video signals of bluetooth receiver module.
By as seen above-mentioned, in scheme of the present utility model, because speech recognition system comprises microphone array link and Bluetooth link two-way phonetic entry link, when carrying out speech recognition, in the two-way link, select, Bluetooth link wherein can realize the reception of remote speech, therefore can identify remote voice.
Description of drawings
Fig. 1 is the synoptic diagram of the composition structure of existing a kind of audio ﹠ video equipment;
Fig. 2 is the synoptic diagram of the composition structure of the audio ﹠ video equipment that comprises speech recognition system among the utility model embodiment.
Embodiment
In the utility model, by the microphone array received speech signal and convert simulated audio signal to, then convert this simulated audio signal to digital audio and video signals, obtain first via digital audio and video signals; And by the bluetooth audio link received speech signal and convert digital audio and video signals to, obtain the second railway digital sound signal; Then select first via digital audio and video signals or the second railway digital sound signal to carry out voice recognition processing.Like this, can pick up by microphone array for some nearer voice, and for the voice of local far away, the Bluetooth link that then can pass through realizes receiving, and has therefore solved the problem of only having microphone array can't identify remote speech as the speech recognition system of audio frequency input.
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
Fig. 2 is the synoptic diagram of the composition structure of the audio ﹠ video equipment that comprises speech recognition system among the utility model embodiment.As shown in Figure 2, this system comprises: microphone array 101, audio coding circuit 102, camera 103, video processing circuits 104, main control integrated circuit 205, system master micro-control unit 206, loudspeaker 107, display screen 108, bluetooth receiver module 201 and Bluetooth transmission module 202.Here the number of Bluetooth transmission module 202 is one or more, has illustrated a plurality of Bluetooth transmission modules 202 among Fig. 2.In addition owing among the embodiment of the present utility model the function of main control integrated circuit and system master micro-control unit is all improved, therefore adopted from Fig. 1 in different Reference numeral.
Wherein, microphone array 101 is exported to audio coding circuit 102 after being used for received speech signal and converting simulated audio signal to.Audio coding circuit 102 is exported to main control integrated circuit 205 after converting the simulated audio signal that receives to digital audio and video signals.Camera 103 is used for the capturing video signal and exports to video processing circuits 104, and video processing circuits 104 is exported to main control integrated circuit 205 after processing for the signal of camera 103 outputs is encoded;
Bluetooth transmission module 202 sends to bluetooth receiver module 201 by bluetooth approach after being used for received speech signal and converting digital audio and video signals to; Bluetooth receiver module 201 is used for the digital audio and video signals that receives is sent to main control integrated circuit 205;
Main control integrated circuit 205 be used for to be selected to carry out voice recognition processing from the digital audio and video signals of audio coding circuit 102 or from the digital audio and video signals of bluetooth receiver module 201.Be that main control integrated circuit 205 is selected between from the digital audio and video signals of audio coding circuit 102 and the digital audio and video signals from bluetooth receiver module 102 first, then the digital audio and video signals selected and digital video signal from video processing circuits 104 are compiled, export to system master micro-control unit 206 after the synthesized voice video data stream.System master micro-control unit 206 is responsible for the management of audio, video data link.Become voice signal from the sound signal of system master micro-control unit 206 outputs by audio tweeter 107, the vision signal of exporting from system master micro-control unit 206 shows by display screen 108.
As seen, two audio frequency input links are arranged in the embodiment shown in Figure 2, be respectively microphone array audio link and bluetooth audio link.Wherein, the microphone array audio link comprises: microphone array 101 and audio coding circuit 102, microphone array 101 received speech signals and convert simulated audio signal to after export to audio coding circuit 102, audio coding circuit 102 is exported to main control integrated circuit 205 as first via digital audio and video signals after converting the simulated audio signal that receives to digital audio and video signals.Bluetooth audio link comprises: Bluetooth transmission module 202 and bluetooth receiver module 201; Send to bluetooth receiver module 201 by Bluetooth transmission module 202 received speech signals and after converting digital audio and video signals to, bluetooth receiver module 201 is exported to main control integrated circuit 205 with the digital audio and video signals that receives as the second railway digital sound signal.Main control integrated circuit 205 is selected between first via digital audio and video signals and the second railway digital sound signal.
In the bright above-mentioned enforcement of this law, kept microphone array, to realize in-plant speech recognition.Increased on this basis the blue tooth voice input mode, to realize remote speech identification.The communication of Bluetooth transmission technical support one-to-many namely can arrange a bluetooth receiver module and a plurality of Bluetooth transmission modules.Can be equipped with as required a plurality of Bluetooth transmission modules in the practice, to realize multi-point speech identification.Because can remote transmission signal with bluetooth approach, so native system can carry out remote speech identification.
In embodiment of the present utility model, can be by the selection to digital audio and video signals by key control main control integrated circuit 205.
For example, can a touch-tone control end be set in main control integrated circuit 205, main control integrated circuit 205 is selected to carry out voice recognition processing from the digital audio and video signals of audio coding circuit 102 or from the digital audio and video signals of bluetooth receiver module 201 to the operation of this button according to the user.
Perhaps, also can touch-tone control end be set at system master micro-control unit 206, system master micro-control unit 206 sends to main control integrated circuit 205 operation of this button according to the user and selects from the instruction of the digital audio and video signals of audio coding circuit 102 or select instruction from the digital audio and video signals of bluetooth receiver module 201; Main control integrated circuit 205 is carried out voice recognition processing according to the Instruction Selection of system master micro-control unit 206 from the digital audio and video signals of audio coding circuit 102 or from the digital audio and video signals of bluetooth receiver module 201.Improvement to the system master micro-control unit among the utility model embodiment also is this just.
In sum, in scheme of the present utility model, because speech recognition system comprises microphone array link and Bluetooth link two-way phonetic entry link, when carrying out speech recognition, in the two-way link, select, Bluetooth link wherein can realize the reception of remote speech and realize multi-point speech control, therefore can identify a plurality of remote voice, make the user better know from experience the superiority of speech recognition.
The above is preferred embodiment of the present utility model only, is not be used to limiting protection domain of the present utility model.All any modifications of within spirit of the present utility model and principle, doing, be equal to replacement, improvement etc., all be included in the protection domain of the present utility model.
Claims (4)
1. a speech recognition system is characterized in that, comprising: microphone array, audio coding circuit, main control integrated circuit, bluetooth receiver module and Bluetooth transmission module, wherein:
Microphone array is exported to the audio coding circuit after being used for received speech signal and converting simulated audio signal to;
The audio coding circuit is exported to main control integrated circuit after converting the simulated audio signal that receives to digital audio and video signals;
The Bluetooth transmission module sends to the bluetooth receiver module by bluetooth approach after being used for received speech signal and converting digital audio and video signals to;
The bluetooth receiver module is used for the digital audio and video signals that receives is sent to main control integrated circuit;
Main control integrated circuit be used for to be selected to carry out voice recognition processing from the digital audio and video signals of audio coding circuit or from the digital audio and video signals of bluetooth receiver module.
2. speech recognition system according to claim 1, it is characterized in that: this system has a bluetooth receiver module and more than one Bluetooth transmission module.
3. speech recognition system according to claim 1 and 2, it is characterized in that, described main control integrated circuit has button, and described main control integrated circuit is selected to carry out voice recognition processing from the digital audio and video signals of audio coding circuit or from the digital audio and video signals of bluetooth receiver module to the operation of this button according to the user.
4. speech recognition system according to claim 1 and 2 is characterized in that, this speech recognition system also comprises: the system master micro-control unit is used for receiving the audio data stream from main control integrated circuit;
This system master micro-control unit has button, and this system master micro-control unit sends to main control integrated circuit the operation of this button according to the user and selects from the instruction of the digital audio and video signals of audio coding circuit or select instruction from the digital audio and video signals of bluetooth receiver module;
Main control integrated circuit is carried out voice recognition processing according to the Instruction Selection of system master micro-control unit from the digital audio and video signals of audio coding circuit or from the digital audio and video signals of bluetooth receiver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405477 CN202796042U (en) | 2012-08-15 | 2012-08-15 | Voice recognition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405477 CN202796042U (en) | 2012-08-15 | 2012-08-15 | Voice recognition system |
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| CN202796042U true CN202796042U (en) | 2013-03-13 |
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| CN 201220405477 Expired - Lifetime CN202796042U (en) | 2012-08-15 | 2012-08-15 | Voice recognition system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820032A (en) * | 2012-08-15 | 2012-12-12 | 歌尔声学股份有限公司 | Speech recognition system and method |
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2012
- 2012-08-15 CN CN 201220405477 patent/CN202796042U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820032A (en) * | 2012-08-15 | 2012-12-12 | 歌尔声学股份有限公司 | Speech recognition system and method |
| WO2014026605A1 (en) * | 2012-08-15 | 2014-02-20 | 歌尔声学股份有限公司 | Voice recognition system and method |
| CN102820032B (en) * | 2012-08-15 | 2014-08-13 | 歌尔声学股份有限公司 | Speech recognition system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: GOERTEK Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
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| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
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| CX01 | Expiry of patent term |