CN203721182U - A vehicle-mounted speech processing system - Google Patents
A vehicle-mounted speech processing system Download PDFInfo
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- CN203721182U CN203721182U CN201320863721.6U CN201320863721U CN203721182U CN 203721182 U CN203721182 U CN 203721182U CN 201320863721 U CN201320863721 U CN 201320863721U CN 203721182 U CN203721182 U CN 203721182U
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Abstract
A vehicle-mounted speech processing system includes a microprocessor, a microphone module group, a sound recording apparatus, a speech noise reduction module, an echo elimination module, an audio frequency output apparatus and a storage apparatus. The microphone module group is in connection with the sound recording apparatus. The sound recording apparatus is in connection with the microprocessor. The microphone module group acquires sound information, and audio frequency input is carried out through the sound recording apparatus. The input audio frequency is further transmitted to the microprocessor, and so that sound acquisition operations are completed. The microprocessor is connected to an audio frequency output apparatus. Speech transmitted to the sound recording apparatus is subjected to corresponding processing and then transmitted to the audio frequency output apparatus. The audio frequency output apparatus transmits the processed audio frequency to a rear stage speech identification system. The speech noise reduction module and the echo elimination module which are with a speech noise reduction function and an echo elimination function operate in the microprocessor. The vehicle-mounted speech processing system of the utility model raises the accuracy degree of speech recognition and raises the speech quality.
Description
Technical field
The utility model relates to interactive voice application front end voice processing technology, especially at the front end speech processing system of vehicle-mounted industry voice interactive application.
Background technology
Along with scientific and technological development, interactive voice technology has been widely used in all trades and professions, has promoted greatly the experience effect of man-machine interaction.And under vehicular applications scene, engine noise, tyre noise, the wind producing in driving process is made an uproar, the ground unrests such as the music that loudspeaker are play, radio, under the impact of these noises, the signal of microphone collection includes the voice signal of use and a large amount of noise signals, and signal quality is poor, the accuracy of speech recognition reduces greatly, has greatly affected the effect of interactive voice.
Utility model content
The utility model technology is dealt with problems: overcome the deficiencies in the prior art, promote the accuracy of speech recognition, promote user's experience effect of vehicle-mounted interactive voice, the utility model provides a kind of efficient voice front-end processing system, improves voice quality.
The utility model adopts following technical solution to realize above-mentioned purpose: a kind of vehicle-mounted voice disposal system, is characterized in that comprising: microprocessor, microphone module, recording device, voice de-noising module, echo cancellation module, audio output device, memory storage;
Described microphone module is connected with recording device, and recording device is connected with microprocessor, and microphone module gathers acoustic information, by recording device, is carried out audio frequency typing and is sent to microprocessor, completes sound collection operation;
Described microprocessor is connected with audio output device, and the voice that recording device is transmitted send audio output device to after processing accordingly, and audio output device sends the audio frequency after processing to rear class speech recognition system;
Described voice de-noising comprises audio collecting device, noise reduction process module and the instantaneous speech power connecting successively.
The elimination of described echo comprises audio collecting device, echo cancellation module and the instantaneous speech power connecting successively.
Described memory storage is Flash storer.
Compare with prior art scheme, the beneficial effects of the utility model are: the utility model can effectively promote the recording quality under environment, promote the accuracy of interactive voice, truly interactive voice are come true in vehicle-mounted sector application.Interactive voice technology is in the application of vehicle-mounted industry, and what in actual driving process, driver can be correlated with by voice controls, and discharges both hands and carries out driver behavior, has improved the security of driving.
Accompanying drawing explanation
Fig. 1 is the utility model system chart;
Fig. 2 is that the utility model is specifically implemented schematic diagram in automotive field;
Fig. 3 is the composition frame chart of voice de-noising module;
Fig. 4 is the composition frame chart of echo cancellation module.
Embodiment
As shown in Figure 1, 2, the utility model vehicle-mounted voice disposal system comprises: microprocessor 1, recording device 2, storer 3 and microphone module 4, and wherein voice de-noising module, echo cancellation module are moved in microprocessor 1; Recording device 2 adopts high precision recording chip, and high-quality recording is provided; Storer 3 adopts Flash storer, for stores system code; Microphone module 4 adopts dual microphone framework, and microphone is selected high performance-price ratio silicon microphone.
The utility model course of work is as follows:
Scene one, when user listens to music or radio in driving, the radio or the musical sound that by loudspeaker, play back are picked up by microphone, now user's the voice command sending can be flooded by speaker sound, thereby causes interactive voice to lose efficacy.Vehicle-mounted voice disposal system of the present utility model is used under this scene, recording device 2 picks up microphone signal (microphone signal comprises user voice command signal and the music back of the body is made an uproar) on the one hand, gather on the one hand loudspeaker broadcast signal as with reference to signal, the simulating signal that the utility model is used broadcast path is as with reference to signal, the echo cancellation module that this two paths of signals is delivered in microprocessor 1 is processed, eliminate the ground unrest in microphone pickoff signals, the voice messaging that retains user, then the signal after processing is delivered to and operated in voice interactive system in arm processor 5.
Scene two, under user is windowing situation, run at high speed, engine noise, tyre noise, wind are made an uproar very large, and now user's the voice command sending can be flooded by each noise like, thereby cause interactive voice to lose efficacy.Under this scene, recording device 2 dual microphones pick up user voice command signal on the one hand, pick up on the one hand each noise-like signal, this two-way microphone signal is delivered to voice de-noising module in microprocessor 1 to be processed, eliminate the noise in microphone pickoff signals, promote Signal-to-Noise, then the signal after processing is delivered to and operated in voice interactive system in arm processor 5.
Voice de-noising module operates in high-performance double-nuclear DSP chip, and as shown in Figure 3, voice de-noising module routine is as described below:
The first step: acoustic training model: speech recognition system acoustic training model data are trained through voice de-noising module, obtain the speech recognition acoustic model suitable with voice de-noising module;
Second step: identifying processing: microphone module gathers voice signal and carries out voice de-noising processing, and by the transmitting voice signal after processing to sound identification module;
The 3rd step: result output: send feedback result to recording device after voice recognition processing.
Echo cancellation module operates in high-performance double-nuclear DSP chip, and as shown in Figure 4, the echo cancellation module course of work is as described below:
The first step: audio collection: recording device synchronous acquisition near end signal and remote signaling;
Second step: echo cancellation: the near end signal obtaining by the first step and remote signaling, the remote signaling near end signal is eliminated, retain the target voice signal near end signal;
The 3rd step: voice output: the target voice signal after second step echo cancellation is flowed to voice wake module and carry out voice wake operation.
Above-described is only the utility model preferred implementation, and user, when all kinds of environment, can obtain good voice quality by speech processing system equally, promotes interactive voice effect.
It should be pointed out that for the staff of this area, without departing from the concept of the premise utility, can also make some distortion and improvement, this all belongs to protection category of the present utility model.
Claims (5)
1. a vehicle-mounted voice disposal system, is characterized in that comprising: microprocessor, microphone module, recording device, voice de-noising module, echo cancellation module, audio output device, memory storage;
Described microphone module is connected with recording device, and recording device is connected with microprocessor, and microphone module gathers acoustic information, by recording device, is carried out audio frequency typing and is sent to microprocessor, completes sound collection operation;
Described microprocessor is connected with audio output device, and the voice that recording device is transmitted send audio output device to after processing accordingly, and audio output device sends the audio frequency after processing to rear class speech recognition system;
The voice de-noising module of described voice de-noising and echo cancellation performance, echo cancellation module operate in microprocessor.
2. according to a kind of vehicle-mounted voice disposal system described in right 1, it is characterized in that: described microphone module is two-microphone array.
3. according to a kind of vehicle-mounted voice disposal system described in right 1, it is characterized in that: described voice de-noising comprises audio collecting device, noise reduction process module and the instantaneous speech power connecting successively.
4. according to a kind of vehicle-mounted voice disposal system described in right 1, it is characterized in that: the elimination of described echo comprises audio collecting device, echo cancellation module and the instantaneous speech power connecting successively.
5. according to a kind of vehicle-mounted voice disposal system described in right 1, it is characterized in that: described memory storage is Flash storer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863721.6U CN203721182U (en) | 2013-12-25 | 2013-12-25 | A vehicle-mounted speech processing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320863721.6U CN203721182U (en) | 2013-12-25 | 2013-12-25 | A vehicle-mounted speech processing system |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505099A (en) * | 2014-12-08 | 2015-04-08 | 北京云知声信息技术有限公司 | Method and equipment for removing known interference in voice signal |
| CN104505095A (en) * | 2014-12-22 | 2015-04-08 | 上海语知义信息技术有限公司 | Voice control system and voice control method for alarm clock |
| CN104575510A (en) * | 2015-02-04 | 2015-04-29 | 深圳酷派技术有限公司 | Noise reduction method, noise reduction device and terminal |
| CN105427866A (en) * | 2015-10-29 | 2016-03-23 | 北京云知声信息技术有限公司 | Voice processing method and device, and pickup circuit |
| CN105448294A (en) * | 2015-12-09 | 2016-03-30 | 江苏天安智联科技股份有限公司 | Intelligent voice recognition system for vehicle equipment |
| CN106094673A (en) * | 2016-08-30 | 2016-11-09 | 奇瑞商用车（安徽）有限公司 | Automobile wakes up word system and control method thereof up |
| CN106131350A (en) * | 2016-09-20 | 2016-11-16 | 深圳市同行者科技有限公司 | Control method and the device thereof of electricity call is discarded based on speech recognition active release |
| CN106527742A (en) * | 2017-01-10 | 2017-03-22 | 深圳市互联互通汽电科技有限公司 | Intelligent switching device for vehicle-mounted display screen |
| CN106541896A (en) * | 2017-01-10 | 2017-03-29 | 深圳市互联互通汽电科技有限公司 | It is a kind of based on the upgrading navigation of vehicle intelligent platform, backing device |
| CN106548797A (en) * | 2017-01-10 | 2017-03-29 | 深圳市互联互通汽电科技有限公司 | A kind of collection is visual, the vehicle intelligent platform of Voice command integration |
| CN106601245A (en) * | 2016-12-15 | 2017-04-26 | 北京塞宾科技有限公司 | Vehicle-mounted intelligent audio device and audio processing method |
| CN106847286A (en) * | 2016-12-30 | 2017-06-13 | 深圳暴风统帅科技有限公司 | A kind of smart machine and its far say voice interactive system and method |
| CN107146629A (en) * | 2017-04-27 | 2017-09-08 | 深圳市益光实业有限公司 | The echo cancellation system recognized based on vehicle-mounted voice |
| CN107454509A (en) * | 2017-09-21 | 2017-12-08 | 安徽辉墨教学仪器有限公司 | A kind of classroom sound collection equipment |
| CN107479854A (en) * | 2017-08-30 | 2017-12-15 | 谢锋 | A kind of projecting apparatus and projecting method |
| CN107566874A (en) * | 2017-09-22 | 2018-01-09 | 百度在线网络技术（北京）有限公司 | Far field speech control system based on television equipment |
| CN109754803A (en) * | 2019-01-23 | 2019-05-14 | 上海华镇电子科技有限公司 | Vehicle multi-sound area voice interactive system and method |
| CN109830249A (en) * | 2018-12-29 | 2019-05-31 | 百度在线网络技术（北京）有限公司 | Data processing method, device and storage medium |
| CN112102816A (en) * | 2020-08-17 | 2020-12-18 | 北京百度网讯科技有限公司 | Speech recognition method, apparatus, system, electronic device and storage medium |
| WO2021068345A1 (en) * | 2019-10-09 | 2021-04-15 | 杭州微纳科技股份有限公司 | Integrated far-field pickup and charging apparatus |
| CN112885365A (en) * | 2021-01-08 | 2021-06-01 | 上海锐承通讯技术有限公司 | Echo eliminating device and vehicle-mounted intelligent terminal |
-
2013
- 2013-12-25 CN CN201320863721.6U patent/CN203721182U/en not_active Expired - Lifetime
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505099A (en) * | 2014-12-08 | 2015-04-08 | 北京云知声信息技术有限公司 | Method and equipment for removing known interference in voice signal |
| CN104505095A (en) * | 2014-12-22 | 2015-04-08 | 上海语知义信息技术有限公司 | Voice control system and voice control method for alarm clock |
| CN104575510A (en) * | 2015-02-04 | 2015-04-29 | 深圳酷派技术有限公司 | Noise reduction method, noise reduction device and terminal |
| CN104575510B (en) * | 2015-02-04 | 2018-08-24 | 深圳酷派技术有限公司 | Noise-reduction method, denoising device and terminal |
| CN105427866A (en) * | 2015-10-29 | 2016-03-23 | 北京云知声信息技术有限公司 | Voice processing method and device, and pickup circuit |
| CN105448294A (en) * | 2015-12-09 | 2016-03-30 | 江苏天安智联科技股份有限公司 | Intelligent voice recognition system for vehicle equipment |
| CN106094673A (en) * | 2016-08-30 | 2016-11-09 | 奇瑞商用车（安徽）有限公司 | Automobile wakes up word system and control method thereof up |
| CN106131350A (en) * | 2016-09-20 | 2016-11-16 | 深圳市同行者科技有限公司 | Control method and the device thereof of electricity call is discarded based on speech recognition active release |
| CN106601245A (en) * | 2016-12-15 | 2017-04-26 | 北京塞宾科技有限公司 | Vehicle-mounted intelligent audio device and audio processing method |
| CN106847286A (en) * | 2016-12-30 | 2017-06-13 | 深圳暴风统帅科技有限公司 | A kind of smart machine and its far say voice interactive system and method |
| CN106541896A (en) * | 2017-01-10 | 2017-03-29 | 深圳市互联互通汽电科技有限公司 | It is a kind of based on the upgrading navigation of vehicle intelligent platform, backing device |
| CN106548797A (en) * | 2017-01-10 | 2017-03-29 | 深圳市互联互通汽电科技有限公司 | A kind of collection is visual, the vehicle intelligent platform of Voice command integration |
| CN106527742A (en) * | 2017-01-10 | 2017-03-22 | 深圳市互联互通汽电科技有限公司 | Intelligent switching device for vehicle-mounted display screen |
| CN107146629A (en) * | 2017-04-27 | 2017-09-08 | 深圳市益光实业有限公司 | The echo cancellation system recognized based on vehicle-mounted voice |
| CN107479854A (en) * | 2017-08-30 | 2017-12-15 | 谢锋 | A kind of projecting apparatus and projecting method |
| CN107454509A (en) * | 2017-09-21 | 2017-12-08 | 安徽辉墨教学仪器有限公司 | A kind of classroom sound collection equipment |
| CN107566874A (en) * | 2017-09-22 | 2018-01-09 | 百度在线网络技术（北京）有限公司 | Far field speech control system based on television equipment |
| CN109830249A (en) * | 2018-12-29 | 2019-05-31 | 百度在线网络技术（北京）有限公司 | Data processing method, device and storage medium |
| CN109830249B (en) * | 2018-12-29 | 2021-07-06 | 百度在线网络技术（北京）有限公司 | Data processing method, device and storage medium |
| CN109754803A (en) * | 2019-01-23 | 2019-05-14 | 上海华镇电子科技有限公司 | Vehicle multi-sound area voice interactive system and method |
| WO2021068345A1 (en) * | 2019-10-09 | 2021-04-15 | 杭州微纳科技股份有限公司 | Integrated far-field pickup and charging apparatus |
| CN112102816A (en) * | 2020-08-17 | 2020-12-18 | 北京百度网讯科技有限公司 | Speech recognition method, apparatus, system, electronic device and storage medium |
| CN112885365A (en) * | 2021-01-08 | 2021-06-01 | 上海锐承通讯技术有限公司 | Echo eliminating device and vehicle-mounted intelligent terminal |
| CN112885365B (en) * | 2021-01-08 | 2024-04-30 | 上海锐承通讯技术有限公司 | Echo cancellation device and vehicle-mounted intelligent terminal |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: IFLYTEK CO., LTD. Free format text: FORMER NAME: ANHUI USTC IFLYTEK CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Wangjiang Road high tech Development Zone Hefei city Anhui province 230088 No. 666 Patentee after: IFLYTEK Co.,Ltd. Address before: Wangjiang Road high tech Development Zone Hefei city Anhui province 230088 No. 666 Patentee before: ANHUI USTC IFLYTEK Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
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Granted publication date: 20140716 |