CN103745720A - Bluetooth system with voice recognition - Google Patents
Bluetooth system with voice recognition Download PDFInfo
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- CN103745720A CN103745720A CN201310727218.2A CN201310727218A CN103745720A CN 103745720 A CN103745720 A CN 103745720A CN 201310727218 A CN201310727218 A CN 201310727218A CN 103745720 A CN103745720 A CN 103745720A
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Abstract
The invention discloses a Bluetooth system with voice recognition. The Bluetooth system comprises a hand-free assembly (HF) module and an audio gateway (AG) module, wherein the HF module comprises a voice recognition module, the voice recognition module is used for receiving a voice instruction of a user and sending recognized text information to the AG module through Bluetooth, and the AG module executes a corresponding instruction after receiving the text information. The Bluetooth system provided by the invention prevents the damage caused by compression coding to voice quality and can improve recognition effects. At the same time, when the voice recognition module is disposed at an HF end, echo elimination and noise reduction modules can also be added later, so that the recognition effects are further improved.
Description
Technical field
The present invention relates to a kind of Bluetooth system with speech recognition, belong to speech recognition technology.
Background technology
Hands free applications framework agreement HFP based in Bluetooth Communication Technology, allows bluetooth equipment can control phone in this agreement, as answer, hang up, rejection, phonetic dialing etc., it has defined audio frequency net gate way (AG) and two roles of hands-free assembly (HF).AG is the gateway device of audio frequency input and output.Typical audio frequency net gate way mainly contains bluetooth cellular phone; HF refers to the equipment that can receive and dispatch audio frequency remote control AG, and typical hands-free assembly mainly contains bluetooth earphone and bluetooth vehicle-mounted hand free device.Current Bluetooth technology and the combination of speech recognition are all to say that sound identification module is placed on AG, user sends phonetic order to HF, HF records and recording is carried out to compressed encoding processing, audio frequency after coding sends to AG by Bluetooth communication protocol and holds, and at AG end, to the audio frequency recovery of decode, then the voice after recovery is sent into sound identification module and identify, yet existing audio coding mode mostly is lossy compression method, after coding is decoded again, voice quality can change, and affects recognition effect.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, a kind of Bluetooth system with speech recognition is provided, avoided the destruction of compressed encoding to voice quality, can promote recognition effect, sound identification module being placed on to HF end can also add echo elimination and noise reduction module in the later stage simultaneously, further promotes recognition effect.
The technology of the present invention solution: a kind of Bluetooth system with speech recognition, as shown in Figure 1, comprising: hands-free assembly (HF) module and audio frequency net gate way (AG) module, HF module comprises sound identification module; Sound identification module is used for receiving user's phonetic order, and the Word message identifying is sent to AG module by bluetooth; AG module is carried out corresponding instruction after receiving Word message.
Described sound identification module is achieved as follows:
(1) user wakes up after sound identification module, and system can be carried out bluetooth connection to HF and AG;
(2) after connection completes, it is synchronous that system can be carried out telephone directory, by Bluetooth transmission, the telephone directory of AG end downloaded to HF and hold;
(3) build speech recognition network, speech recognition network is divided into two parts: contact identification network and everyday words recognition network; Everyday words identification is the identification of order word, comprising: call, hang up, answer and rejection; Speech recognition process is the process that the characteristic information of voice is compared, mated and obtain a result with the information in recognition network of extracting;
(4) after speech recognition network struction completes, the recording of the phonetic order that user is sent is sent into speech recognition network and is identified, system can identify order word in everyday words recognition network, and identifies name of contact person in contact identification network, thereby obtains complete recognition result;
(5) HF connects by the bluetooth of setting up the Word message identifying send to AG and hold, and AG end receives after Word message that transcription is corresponding command information, and carries out instruction, calls;
Can realize in the same way answering of incoming call, rejection, hangs up.
The present invention's advantage is compared with prior art:
(1) the present invention combines speech recognition technology and Bluetooth Communication Technology, can realize voice and control bluetooth equipment, and realization is called, and rejection is answered, and the function such as hangs up.Prior art is all to say that sound identification module is placed on AG end, need HF end user's voice command is recorded and carry out audio coding, be transferred to again AG end, and after being decoded, audio frequency carries out again speech recognition, then existing audio coding mode mostly is lossy compression method, after coding is decoded again, voice quality can change, and affects recognition effect.The present invention is placed on HF end by sound identification module, after HF end is recorded to user's voice command, directly identifies, and has avoided the destruction of compressed encoding to voice quality, can promote recognition effect.
(2) sound identification module being placed on to HF end can also add echo elimination and noise reduction module in the later stage, further promotes recognition effect.
(3) the present invention is in speech recognition process, and AG end can enter holding state, saves the energy of AG end.
Accompanying drawing explanation
Fig. 1 is composition frame chart of the present invention;
Fig. 2 is that process flow diagram called in voice.
Embodiment
In conjunction with Fig. 2, the voice of take are called function as example, illustrate that sound identification module of the present invention is achieved as follows:
(1) user wakes (available voice and button wake up) after sound identification module up, and system can be carried out bluetooth connection to HF and AG.
(2) after connection completes, it is synchronous that system can be carried out telephone directory, by Bluetooth transmission, the telephone directory of AG end downloaded to HF and hold.The object of doing is like this in order to build contact identification network.
(3) build speech recognition network.Speech recognition network is divided into two parts: contact identification network and everyday words recognition network.Everyday words identification is the identification of order word, comprising: call, hang up, answer, rejection etc.Speech recognition process is the process that the characteristic information of voice is compared, mated and obtain a result with the information in recognition network of extracting.
(4), after speech recognition network struction completes, the recording of the phonetic order that user is sent is sent into speech recognition network and is identified.For example user says " phoning XXX ", and system can identify order word and " phone " in everyday words recognition network, and in contact identification network, identifies name of contact person " XXX ", thereby obtain complete recognition result, " phones XXX ".
Step 3 and step 4 complete by sound identification module.
(5) HF connects by the bluetooth of setting up the Word message identifying send to AG and hold, and AG end receives after Word message that transcription is corresponding command information, and carries out instruction, calls to XXX.
Can realize in the same way answering of incoming call, rejection, hangs up.
Claims (2)
1. with a Bluetooth system for speech recognition, it is characterized in that comprising: hands-free assembly (HF) module and audio frequency net gate way (AG) module, HF module comprises sound identification module; Described sound identification module is used for receiving user's phonetic order, and the Word message identifying is sent to AG module by bluetooth; Described AG module is carried out corresponding instruction after receiving Word message.
2. the Bluetooth system with speech recognition according to claim 1, is characterized in that: described sound identification module is achieved as follows:
(1) user wakes up after sound identification module, and system can be carried out bluetooth connection to HF and AG;
(2) after connection completes, it is synchronous that system can be carried out telephone directory, by Bluetooth transmission, the telephone directory of AG end downloaded to HF and hold;
(3) build speech recognition network, speech recognition network is divided into two parts: contact identification network and everyday words recognition network; Everyday words identification is the identification of order word, comprising: call, hang up, answer and rejection; Speech recognition process is the process that the characteristic information of voice is compared, mated and obtain a result with the information in recognition network of extracting;
(4) after speech recognition network struction completes, the recording of the phonetic order that user is sent is sent into speech recognition network and is identified, system can identify order word in everyday words recognition network, and identifies name of contact person in contact identification network, thereby obtains complete recognition result;
(5) HF connects by the bluetooth of setting up the Word message identifying send to AG and hold, and AG end receives after Word message that transcription is corresponding command information, and carries out instruction, calls;
Can realize in the same way answering of incoming call, rejection, hangs up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310727218.2A CN103745720A (en) | 2013-12-25 | 2013-12-25 | Bluetooth system with voice recognition |
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| CN201310727218.2A CN103745720A (en) | 2013-12-25 | 2013-12-25 | Bluetooth system with voice recognition |
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| CN103745720A true CN103745720A (en) | 2014-04-23 |
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Cited By (6)
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| CN106341532A (en) * | 2016-08-30 | 2017-01-18 | 李达航 | Method enabling voice input of different types of mobile phone applications via voice input device |
| CN106900080A (en) * | 2015-12-18 | 2017-06-27 | 展讯通信（上海）有限公司 | Bluetooth connecting method and device |
| CN106900079A (en) * | 2015-12-18 | 2017-06-27 | 展讯通信（上海）有限公司 | Bluetooth connecting method and device |
| CN108632430A (en) * | 2018-03-12 | 2018-10-09 | 杭州点壹下通讯科技有限公司 | A kind of cloud fixed line method based on intelligent sound |
| CN109637542A (en) * | 2018-12-25 | 2019-04-16 | 圆通速递有限公司 | A kind of outer paging system of voice |
| CN110191443A (en) * | 2019-04-30 | 2019-08-30 | 努比亚技术有限公司 | Bluetooth communication connection method, communication equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109637542A (en) * | 2018-12-25 | 2019-04-16 | 圆通速递有限公司 | A kind of outer paging system of voice |
| CN110191443A (en) * | 2019-04-30 | 2019-08-30 | 努比亚技术有限公司 | Bluetooth communication connection method, communication equipment and storage medium |
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Application publication date: 20140423 |