CN110310637A - A kind of sound control method and system based on distributed multi-microphone and bluetooth Mesh - Google Patents
A kind of sound control method and system based on distributed multi-microphone and bluetooth Mesh Download PDFInfo
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/28—Constructional details of speech recognition systems
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L17/00—Speaker identification or verification techniques
- G10L17/06—Decision making techniques; Pattern matching strategies
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
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- H04W84/00—Network topologies
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- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
- G10L2015/223—Execution procedure of a spoken command
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
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Abstract
The invention discloses a kind of sound control method and system based on distributed multi-microphone and bluetooth Mesh.Including control method and control system, control system includes bluetooth Mesh module, microphone Mesh network and equipment Mesh network, control method includes: that the raw tone for acquiring the microphone will inhibit noise and processing reverberation, carry out Application on Voiceprint Recognition, verify the legitimacy of main body speaker, activate corresponding edge side microphone, obtain effective audio feature information, local edge side carries out speech recognition, obtain user voice command, pass through bluetooth Mesh module, realize the control to target device, the problem of present invention can not be detached from terminal device to obtain voice input information at a distance, the significant response speed for improving voice control simultaneously.
Description
Technical field
The present invention relates to electronic communication field fields, and in particular to a kind of based on distributed multi-microphone and bluetooth Mesh
Sound control method and system.
Background technique
Voice technology starts to change our life and work mode in recent years gradually, is mainly reflected in following three sides
The variation in face:
(1) technologies such as multi-core processor, general-purpose computations graphics processor, CPU/GPU cluster make available calculating power significantly
It improves.
(2) more training data resources can be obtained by increasingly advanced internet and cloud computing.
(3) mobile device, wearable device, intelligentized Furniture equipment, vehicle-mounted information and entertainment system are just becoming more popular, phase
Than the interactive mode of keyboard and mouse, the convenience of voice technology is then enough that it is made to show one's talent.
In voice control field, featured on the market at present is still control based on voice assistant with single microphone
Interactive mode.On the one hand, the control terminal of human-computer interaction, which still needs, depends on end product, derived from being pure voice assistant
Voice input information can not be obtained at a distance；On the other hand, for the intellectual product of high practicability, intelligence requires voice technology
Not only has speech identifying function, with greater need for more intelligent semantic understanding ability, cloud data processing is then becoming for current main-stream
Gesture.
Therefore, traditional voice assistant has relatively stringent limitation for the placement position of pick up facility, it is difficult to practical full
Sufficient client is to the space adaptability demand of intelligent control, and from bringing the hidden danger of user data personal secrets to a certain degree
Chinese patent literature CN109754802A discloses a kind of sound control method and device, and user is logical in the technology
It crosses mobile phone, plate or computer and issues phonetic order；Slave identifies the instruction that user issues, and slave makes corresponding judgement；From
Recognition result band mark is fed back to host by machine；Host makes corresponding actions and feeds back to controlled node；Controlled node receiving host
Action command, and make corresponding operating, networking wherein carried out by bluetooth Mesh networking technology between host and control node,
Between host and slave by WIFI networking technology carry out networking, therefore this method and device still rely on mobile phone, computer and
The terminal devices such as plate, and the phase mutual feedback between host and slave is needed to instruct to issue to each control point, there is no de-
Information, the response speed for the voice control that also do not increase significantly are inputted from terminal device to obtain voice at a distance.
Summary of the invention
For this purpose, the present invention need to be to solve voice assistant in existing voice technology can not obtain voice input letter at a distance
While ceasing and not can guarantee privacy of user the problem of the order of quick response user, to provide a kind of method of voice control
And system.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of sound control method and system based on distributed multi-microphone and bluetooth Mesh provided by the present invention leads to
Following technical scheme is crossed to be achieved:
A kind of speech control system based on distributed multi-microphone and bluetooth Mesh characterized by comprising
Bluetooth Mesh module, for setting up every group of Mesh network of the speech control system and for every group of Mesh network
Between connection；With
At least one set of microphone Mesh network, each group of microphone Mesh network have it is multiple can portable installation independent Mike
Wind, it is the multiple can the separate microphone of portable installation different location is mounted on according to needed for practical application scene and by described
Bluetooth Mesh module is connected with each other；It is the multiple can portable installation separate microphone have speech processing module and speech recognition
Module；And
Hardware device needed for practical application scene is connected by the bluetooth Mesh module and is formed by equipment Mesh network
Equipment Mesh network；
Only pass through indigo plant between the Bluetooth microphone Mesh network and the network internal and network of the equipment Mesh network
Tooth Mesh module is connected and is worked offline locally.
Further, the bluetooth Mesh module is transmitted between network by using code sequence in every group of Mesh network
Information；
The code sequence is divided into three groups of independent code sequence groups, be respectively used to microphone and microphone, microphone with
The transmitting of the information of equipment and equipment and equipment.
Further, the bluetooth Mesh module can add the section that network is detached from close to the node of network or deletion automatically
Point, and judge whether to belong to same Mesh network,
Further, the bluetooth Mesh module can also be communicated by serial ports with other modules, change module
Nodal information,
Further, the bluetooth Mesh module can also be defined existing node or newly-increased according to communication data format
The control command of node.
Further, the microphone Mesh network is specifically used for:
Raw tone in acquisition applications scene carries out processing to voice and extracts main body speaker phonetic feature, and identifies
Then main body speaker's special sound order activates and controls corresponding hardware device.
A kind of sound control method based on distributed multi-microphone and bluetooth Mesh, which is characterized in that the voice control
Method processed is as follows:
When main speaker issues voice command, each separate microphone is triggered in microphone Mesh network, automatically selects
The maximum K microphone of audio signal strength is received to be monitored (K value is set according to microphone deployment density), meanwhile, the K
In a microphone speech processing module the raw tone of acquisition is reinforced, except make an uproar and reverberation processing, extract main body and speak
People's phonetic feature verifies speaker's identity according to the phonetic feature, and after confirming speaker's identity, speech recognition modeling passes through
Its acoustic model for being included and language model carry out local offline speech recognition to the special sound order of main body speaker, lead to
It crosses bluetooth Mesh network and the result of the offline speech recognition in the local is sent to the hardware device for needing to control.
Further, the detailed process of the verifying speaker's identity are as follows:
According to the phonetic feature, measuring similarity is carried out to the voice data of multi-microphone acquisition, verifies the person of speaking
Part.
Further, the detailed process of the offline speech recognition in the local are as follows:
The acoustic model and language model have voice and corpus, and the speech recognition modeling passes through to the voice
Study with corpus can effectively identify the general sentence of practical application scene, while be directed to the hardware device of control again
Building identification grammer forms specific aim speech recognition modeling by this process in the microphone Mesh network, will be described
Specific aim speech model is embedded in the microphone Mesh network to identify to voice command.
Compared with prior art, the invention has the following beneficial effects:
1, a kind of speech control system based on distributed multi-microphone and bluetooth Mesh provided by the invention selects distribution
Formula multi-microphone multi-angle obtains raw tone, while speech processing module and speech recognition module are a variety of to original sound progress
Class processing, can extract pure main speaker's sound, so that the voice command to main speaker precisely identifies, of the invention is de-
Constraint from terminal device, pickup are not limited by a space, and voice command recognition is accurate.
2, a kind of sound control method based on distributed multi-microphone and bluetooth Mesh provided by the invention, the voice control
Method processed carries out identified off-line using local edge side speech recognition, to voice command, by applying bluetooth Mesh mould after identification
The microphone Mesh network and equipment Mesh network that block is established, which are realized to required device to be controlled, sends control command, such
Sound control method is avoided using cloud computing, it is therefore prevented that the leakage of user data and privacy, while using local edge side voice
Identification carries out identified off-line to voice command, can significantly improve response speed, realize the fast reaction of controlled device.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the method flow diagram of embodiment；
Fig. 2 is the system construction drawing of embodiment.
Appended drawing reference is as follows: 100- microphone Mesh network, 101- microphone, 102- microphone, 103- microphone, 200-
Microphone Mesh network, 201- microphone, 202- microphone, 203- microphone.
Specific embodiment
Technical solution of the present invention is clearly and completely described below, it is clear that described embodiment is the present invention
A part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Embodiment
The present embodiment provides a kind of sound control method and system based on distributed multi-microphone and bluetooth Mesh, Fig. 2
The structure chart of speech control system in the present embodiment is shown；
The speech control system is provided with two groups of microphone Mesh networks, respectively microphone according to application scenarios needs
Mesh network 100 and microphone Mesh network 200 wherein distributed 3 microphones, respectively in microphone Mesh network 100
Microphone 101, microphone 102 and microphone 103 also distributed 3 microphones, respectively wheat in microphone Mesh network 200
Gram wind 201, microphone 202 and microphone 203 all have speech processing module and speech recognition in two groups of microphone Mesh networks
Module, two groups of microphone Mesh networks and microphone therein pass through bluetooth Mesh module respectively and are connected.
The hardware device for needing to control in this speech control system has computer, printer, heater, kitchen ventilator and camera shooting
Machine, this 5 equipment connect component devices Mesh network by bluetooth Mesh module, also pass through bluetooth Mesh module and two
Group microphone Mesh is connected.
Fig. 1 shows the sound control method of this speech control system:
S1 multi-microphone acquires speaker's raw tone；
S2 verifies speaker's identity；
S3 extracts the voice of theme speaker order；
The local S4 identified off-line voice command content；
S5 controls the hardware device in Mesh network.
Specifically, S1: main speaker issues voice command, triggers microphone Mesh network 100 and microphone Mesh network
200, the microphone in two groups of microphone Mesh networks starts to acquire voice, selects and receives the maximum microphone of audio signal strength
201 and microphone 103 be used as main monitoring microphone；
S2: being converged to voice messaging on main monitoring microphone by Mesh network after each microphone voice collecting,
Application on Voiceprint Recognition is carried out, the legitimacy of main speaker is verified, firstly, speech processing module is to the language converged on main monitoring microphone
Sound is handled, and sound is enhanced, and the environmental noise removed in voice allows rear reverberation, pure voice data is obtained, by this voice
The main speaker's acoustic feature recorded in data and microphone is measured by using the method for cosine similarity, to verify
The legitimacy of main speaker confirms speaker's identity.
S3: after confirming main speaker's identity, microphone Mesh network 100 and microphone Mesh network 200 carry out voice
Local identified off-line, firstly, speech recognition module by the study to speech corpus, is identified for speech control system institute
The general sentence of the scene at place, meanwhile, for 5 equipment in equipment Mesh network, extraly building identification grammer, covers more
The control command of kind clause,
S4 and S5: after the completion of the speech recognition module building of scene locating for speech control system, speech recognition module
The clean speech order of identification after processing, is sent to hardware device by bluetooth Mesh network for recognition result.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (9)
1. a kind of speech control system based on distributed multi-microphone and bluetooth Mesh characterized by comprising
Bluetooth Mesh module, for setting up every group of Mesh network of the speech control system and between every group of Mesh network
Connection；With
At least one set of microphone Mesh network, each group of microphone Mesh network have it is multiple can portable installation separate microphone,
It is the multiple can the separate microphone of portable installation different location is mounted on according to needed for practical application scene and by the indigo plant
Tooth Mesh module is connected with each other；It is the multiple can portable installation separate microphone have speech processing module and speech recognition mould
Block；And
Hardware device needed for practical application scene is connected component devices by the bluetooth Mesh module by equipment Mesh network
Mesh network；
Only pass through bluetooth between the Bluetooth microphone Mesh network and the network internal and network of the equipment Mesh network
Mesh module connects to form bluetooth Mesh network, and works offline locally.
2. a kind of speech control system based on distributed multi-microphone and bluetooth Mesh according to claim 1, special
Sign is that the bluetooth Mesh module transmits information by using code sequence between network in every group of Mesh network；
The code sequence is divided into three groups of independent code sequence groups, is respectively used to microphone and microphone, microphone and equipment
And the information transmitting of equipment and equipment.
3. according to claim 1 or a kind of 2 described in any item voice controls based on distributed multi-microphone and bluetooth Mesh
System, which is characterized in that the bluetooth Mesh module can add the node that network is detached from close to the node of network or deletion automatically,
And judge whether to belong to same bluetooth Mesh network.
4. according to claim 1 or a kind of 2 described in any item voice controls based on distributed multi-microphone and bluetooth Mesh
System, which is characterized in that the bluetooth Mesh module can also be communicated by serial ports with other modules, and the section of module is changed
Point information.
5. according to claim 1 or a kind of 2 described in any item voice controls based on distributed multi-microphone and bluetooth Mesh
System, which is characterized in that the bluetooth Mesh module can also be defined existing node or newly-increased according to communication data format
The control command of node.
6. a kind of speech control system based on distributed multi-microphone and bluetooth Mesh according to claim 1, special
Sign is that the microphone Mesh network is specifically used for:
Raw tone in acquisition applications scene carries out processing to voice and extracts main body speaker phonetic feature, and identifies main body
Then speaker's special sound order activates and controls corresponding hardware device.
7. a kind of sound control method based on distributed multi-microphone and bluetooth Mesh, which is characterized in that the voice control
Method is as follows:
When main speaker issues voice command, each separate microphone is triggered in microphone Mesh network, automatically selects reception
The maximum K microphone of audio signal strength is monitored,
Meanwhile in the K microphone speech processing module raw tone of acquisition is reinforced, except make an uproar and reverberation processing,
Main body speaker's phonetic feature is extracted,
According to the phonetic feature, speaker's identity is verified, after confirming speaker's identity, speech recognition modeling is included by it
Acoustic model and language model local offline speech recognition is carried out to the special sound order of main body speaker, pass through bluetooth
The result of the offline speech recognition in the local is sent to the hardware device for needing to control by Mesh network.
8. a kind of sound control method based on distributed multi-microphone and bluetooth Mesh according to claim 7, special
Sign is, the detailed process of the verifying speaker's identity are as follows:
According to the phonetic feature, measuring similarity is carried out to the voice data of multi-microphone acquisition, verifies speaker's identity.
9. a kind of sound control method based on distributed multi-microphone and bluetooth Mesh according to claim 7, special
Sign is, the detailed process of the offline speech recognition in local are as follows:
The acoustic model and language model have voice and corpus, and the speech recognition modeling passes through to the voice and language
The study in material library can effectively identify the general sentence of practical application scene, while construct again for the hardware device of control
It identifies grammer, by this process, forms specific aim speech recognition modeling in the microphone Mesh network, be directed to by described in
Property speech model be embedded in the microphone Mesh network to be identified to voice command.
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| CN112652310A (en) * | 2020-12-31 | 2021-04-13 | 乐鑫信息科技（上海）股份有限公司 | Distributed speech processing system and method |
| WO2022144009A1 (en) * | 2020-12-31 | 2022-07-07 | 乐鑫信息科技（上海）股份有限公司 | Distributed speech processing system and method |
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Application publication date: 20191008 |