CN107734416A - A kind of lasing area line identification denoising device, earphone and method - Google Patents
A kind of lasing area line identification denoising device, earphone and method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000007613 environmental effect Effects 0.000 claims abstract description 12
- 230000009467 reduction Effects 0.000 claims abstract description 12
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 238000012545 processing Methods 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 8
- 238000001228 spectrum Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- 201000009310 astigmatism Diseases 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000010985 leather Substances 0.000 claims description 3
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 210000001097 facial muscle Anatomy 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 238000003909 pattern recognition Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000008921 facial expression Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/166—Detection; Localisation; Normalisation using acquisition arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/10—Details of earpieces, attachments therefor, earphones or monophonic headphones covered by H04R1/10 but not provided for in any of its subgroups
- H04R2201/105—Manufacture of mono- or stereophonic headphone components
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2410/00—Microphones
- H04R2410/01—Noise reduction using microphones having different directional characteristics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Engineering & Computer Science (AREA)
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- Acoustics & Sound (AREA)
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- Manufacturing & Machinery (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Human Computer Interaction (AREA)
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Abstract
The invention discloses a kind of lasing area line identification denoising device, earphone and method, it is related to audio frequency apparatus technical field, lasing area line identification denoising device includes：The microphone and infrared laser scan module of electric connection；The microphone is used for the acoustic information for gathering external environment condition, including the voice messaging and environmental noise that user sends, and the acoustic information is sent into the infrared laser scan module；The infrared laser scan module is used for the synchronous face-image for obtaining user and corresponding generation face line coding, and is compared with the face line coded data of storage inside so that it is determined that the voice messaging that user sends.By scan the changes in faces of user determine active user whether sounding, and the voice messaging that user sends is extracted and isolated from the acoustic information of the external environment condition accordingly, even under the external environment condition of complexity, higher noise reduction depth can still be reached, the normal talking that confidence level is higher under adverse circumstances can be met.
Description
Technical field
The present invention relates to audio frequency apparatus technical field, more particularly to a kind of lasing area line identification denoising device, earphone and side
Method.
Background technology
During the use of audio product, in order to eliminate noise on one's own initiative, people have invented " Active Noise Control " this skill
Art, its principle are：All sound is all made up of certain frequency spectrum, if a kind of sound can be found, its frequency spectrum is with wanting
The noise of elimination is just the same, and simply phase is just opposite (180 ° of difference), it is possible to is completely counterbalanced by this noise.Traditional
Active noise reduction earphone is typically produced using noise reduction MIC (microphone) sampling environmental noises and then by electronic technology and environmental noise
Frequency spectrum is the same, and the sound wave of phase just opposite (180 ° of difference) balances out environmental noise, and traditional active noise reduction earphone can only
Noise is set to reduce 20dB~30dB or so.
In process of the present invention is realized, inventor has found that at least there are the following problems in the prior art：Traditional active noise reduction
Earphone (such as complicated battlefield) effect under high-strength noisy environment is not especially good, and user still can be by noise jamming, very
Pain is felt bad, it is impossible to keeps clearheaded well.
The content of the invention
In order to overcome the shortcomings of Related product in the prior art, the present invention propose a kind of lasing area line identification denoising device,
Earphone and method, solves the problems, such as existing active noise reduction earphone noise reduction difference under high-strength noisy environment.
The invention provides a kind of lasing area line to identify denoising device, including：Microphone and infrared laser scan module,
The microphone is electrically connected with infrared laser scan module；The microphone is used for the acoustic information for gathering external environment condition, bag
Voice messaging and environmental noise that user sends are included, and the acoustic information is sent to the infrared laser scan module；
The infrared laser scan module is used for the synchronous face-image for obtaining user and corresponding generation face line coding, and with inside
The face line coded data of storage is compared so that it is determined that the voice messaging that user sends；
The infrared laser scan module includes CCD camera, Infrared laser emission device and processing circuit module, described
The combination of Infrared laser emission device is arranged on the CCD camera, and the CCD camera electrically connects with the processing circuit module
Connect；The Infrared laser emission device is radiated at face, the CCD camera collection face reflection for exporting uniform light
The light returned, and identify face internal feature change to attributes so that it is determined that its corresponding face according to the Strength Changes of the light
Line encodes, while is compared with the face line coded data of storage inside and exports comparison result to the processing circuit module,
The processing circuit module is used to carry out the efficient voice in the acoustic information according to the comparing result that the face line encodes
Extraction and separation, the efficient voice refer to the voice messaging that user sends.
As a further improvement on the present invention, the Infrared laser emission device includes infrared laser LED, optical filter, even
Light film and diverging lens, the infrared laser LED, optical filter, even smooth film and diverging lens are coaxially disposed, and the optical filter is used
In filtering out interference light, the even smooth film and diverging lens are then respectively used to even light and astigmatism and coordinating is radiated at uniform light
On face；The infrared laser LED is as light source output infrared laser, and the infrared laser is successively by optical filter, even light
It is radiated at after film and diverging lens on face.
As a further improvement on the present invention, the processing circuit module include microprocessor, voice recognition chip,
FLASH storage chips and dsp chip, the microprocessor, FLASH storage chips and dsp chip with the speech recognition
Chip is electrically connected with；The voice recognition chip is used for the microphone is gathered according to the comparing result that the face line encodes
The acoustic information of external environment condition carries out feature extraction, while coordinates described and with FLASH storage chip storage insides voice special
Sign data, which are compared, determines its corresponding voice；The microprocessor is used for the ring in addition to the voice messaging that user sends
The sound wave spectrum that border noise produces opposite in phase carries out whole counteractings or filtered out；The dsp chip is used for by data signal
The voice messaging that user sends is extracted and isolated to reason from the acoustic information of the external environment condition.
As a further improvement on the present invention, the processing circuit module also includes AMP chips, the AMP chips and institute
Dsp chip electric connection is stated, the voice messaging that the dsp chip extracts is amplified processing by the AMP chips.
The invention provides a kind of lasing area line to identify noise cancelling headphone, knows applied to the lasing area line described in any of the above-described
Other denoising device, including：Lasing area line identification denoising device, first support, second support and two earmuffs；Described first
Frame is arcuate structure, and described two earmuffs are arranged oppositely and are separately fixed at two lower ends of the first support, the laser
Face line identification denoising device is fixedly mounted on one of earmuff by the second support.
As a further improvement on the present invention, CCD windows, red are offered on lasing area line identification denoising device respectively
Outer window and Mike's window, correspond to respectively in the CCD windows, infrared window and Mike's window and the CCD is installed taken the photograph
As head, Infrared laser emission device and microphone, wherein, the CCD windows are used for the CCD camera and obtain image, described
Infrared window is used for the Infrared laser emission device and exports uniform light, and Mike's window is used for microphone collection and used
The voice messaging that family is sent.
As a further improvement on the present invention, the earmuff includes ear casing, loudspeaker, plastic layer, cotton layer, the first sponge
Layer；The inside of the outlet sound mouth correspondence position of the ear casing, is disposed with the loudspeaker, plastic layer, cotton layer from inside to outside
And first spongy layer.
As a further improvement on the present invention, the plastic layer is that double-layer plastic is used for sound insulation, and the plastic layer is close
Edge is machined with stomata at the internal layer of the loudspeaker.
As a further improvement on the present invention, the earmuff also includes the second spongy layer, and second spongy layer is leather sheath
Sound-isolating sponge, second spongy layer are coated on the outlet sound mouth periphery of the ear casing.
The invention provides a kind of lasing area line to identify noise-reduction method, knows applied to the lasing area line described in any of the above-described
Other denoising device, including：Gather the acoustic information of external environment condition, including the voice messaging and environmental noise that user sends；It is defeated
Go out uniform light to be radiated on face, the light that collection face reflects, and identified according to the Strength Changes of the light
Face internal feature change to attributes is compared so that it is determined that its corresponding face line coding with the face line coded data of storage inside
It is right；The efficient voice in the acoustic information is extracted and separated according to the comparing result that the face line encodes, it is described to have
Effect voice refers to the voice messaging that user sends.
Compared with prior art, the invention has the advantages that：
In embodiments of the present invention, described lasing area line identification denoising device, earphone and method are by scanning user's
Changes in faces come determine active user whether sounding, and extract and isolate from the acoustic information of the external environment condition accordingly
The voice messaging that user sends, even under the external environment condition of complexity, it can still reach higher noise reduction depth, Ke Yiman
The higher normal talking of confidence level under sufficient adverse circumstances.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, it will use below required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is the structural representation that lasing area line of the present invention identifies denoising device；
Fig. 2 is the structural representation that lasing area line of the present invention identifies noise cancelling headphone；
Fig. 3 is the schematic flow sheet that lasing area line of the present invention identifies noise-reduction method.
Description of reference numerals：1- microphones；2- infrared laser scan modules；21-CCD cameras；22- Infrared laser emissions
Device；221- infrared laser LEDs；222- optical filters；The even smooth films of 223-；224- diverging lens；23- processing circuit modules；231- is micro-
Processor；232-FLASH storage chips；233- voice recognition chips；234-DSP chips；235-AMP chips；100- lasing areas
Line identifies denoising device；101-CCD windows；102- infrared windows；103- Mike's windows；200- first supports；300- second
Frame；400- earmuffs；401- ear casings；402- loudspeaker；403- plastic layers；404- cotton layers；The spongy layers of 405- first；406- second
Spongy layer.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is only
Part of the embodiment of the present invention, rather than whole embodiments, presently preferred embodiments of the present invention is given in accompanying drawing.The present invention can
To realize in many different forms, however it is not limited to embodiment described herein, on the contrary, provide the mesh of these embodiments
Be to make the understanding more thorough and comprehensive to the disclosure.Based on the embodiment in the present invention, the common skill in this area
The every other embodiment that art personnel are obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.In description and claims of this specification and above-mentioned accompanying drawing
Term " comprising " and " having " and their any deformations, it is intended that cover non-exclusive include.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can wrap in conjunction with the embodiments
In at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
As shown in fig.1, lasing area line identification denoising device 100 includes the microphone 1 being electrically connected with and infrared
Laser scanning module 2；The microphone 1 is used to gathering the acoustic information of external environment condition, including the voice messaging that sends of user with
And environmental noise, and the acoustic information is sent to the infrared laser scan module 2；The infrared laser scan module 2
For the synchronous face-image for obtaining user and corresponding generation face line coding, and enter with the face line coded data of storage inside
Row compares so that it is determined that the voice messaging that user sends, described face line coding are intended to indicate that the collection of face facial information feature
Close.
The infrared laser scan module 2 images including CCD (Charge-coupled Device, charge coupled cell)
First 21, Infrared laser emission device 22 and processing circuit module 23, the combination of Infrared laser emission device 22 are arranged on the CCD
On camera 21, the CCD camera 21 is electrically connected with the processing circuit module 23.
The Infrared laser emission device 22 is radiated at face, including infrared laser LED for exporting uniform light
221st, optical filter 222, even smooth film 223 and diverging lens 224, the infrared laser LED 221, optical filter 222, even smooth film 223
And diverging lens 224 are coaxially disposed, the optical filter 222 is used to filter out interference light, the even smooth film 223 and diverging lens
224 be respectively used to even light and astigmatism and coordinate uniform light is radiated on face；The conduct of infrared laser LED 221
Light source output infrared laser, the infrared laser are radiated at after optical filter 222, even smooth film 223 and diverging lens 224 successively
On face, the CCD camera 21 gathers the light that face reflects, and identifies face according to the Strength Changes of the light
Internal feature change to attributes is so that it is determined that its corresponding face line encodes, while is compared with the face line coded data of storage inside
Comparison result is exported and refers to the anti-of face surface to the processing circuit module 23, described face internal feature change to attributes
Penetrate attribute (such as reflectance factor, usual abbreviation texture Texture), face 3D shapes (surface normal direction), human face expression,
The change of the attributes such as beard；Human body biological characteristics identification threshold mainly uses human body lip, jawbone, throat and facial muscle position at present
Deng vibrations relevance biology analytic technique, can by parsing the fundamental frequency and corresponding various harmonic waves and overtone of body sounds
To identify the identification feature of sound very well, by the physiological characteristic of human body have human body intrinsic not reproducible uniqueness and
Stability, therefore can not reproducible, stolen or pass into silence.So it can be passed exactly using human body these unique physiological characteristics
Defeated target sound, useless sound to filtering out, the confidence level and robustness of call, the embodiment of the present invention are improved to greatest extent
The CCD camera 21 determines that the face line encodes by the face internal feature change to attributes.
Corresponding human body face vibrations are detected by the infrared laser scan module 2 and can determine that whether active user enters
Row sounding, and the voice messaging that user sends is determined according to the face line coding and comparison result that recognize；The infrared laser
Scan module 2, which detects human body face vibrations, can include at least one of following several ways：
1st, the template of one or several standard faces muscle groups is designed first, then calculates the sample and standard of test collection
Matching degree between template, and pronunciation behavior is judged whether by threshold value；
2nd, because face muscle group has certain structure distribution feature, by extracting the corresponding rule of these features generation
To judge that the muscle whether test sample is included after human body generation behavior changes；
3rd, using the method for artificial neural network in pattern-recognition, i.e., by opposite as sample sets and non-face are as sample sets
Study produces grader；
4th, all muscle group image surface set are considered as an image surface subspace, and based on detection sample and its between sub-aperture
The distance between projection judges whether the image surface of muscle group vibrations；
5th, the tracking of muscle group looks or complexion model tracking, method based on model or are combined based on motion with model
Method carries out dynamic target tracking to the looks being detected；
6th, identity validation is carried out to the looks picture being detected or carries out target search in image surface storehouse, this is actually
Say, the image surface sampled is compared successively with the image surface of stock, and find out optimal matching object.It is main using special at present
Sign vector and two kinds of describing modes of face line template：
Characteristic vector is first to determine lip, throat, cheilogramma flesh, the image surface face profile such as jawbone muscle group, the wing of nose, corners of the mouth
The attributes such as size, position, distance, their geometric feature is then calculated again, and these characteristic quantities form one and describe the face
The characteristic vector of picture；
Face line template is to store some standard facial muscle group image surface template or image surface organ templates in storehouse, is being compared
Pair when, all pixels of image surface will be sampled and matched with all templates in storehouse using normalization correlative measurement.
In addition, also having auto-correlation network or feature using pattern-recognition by the way of template is combined, the present invention is implemented
Example will not be repeated here.
In embodiments of the present invention, the face line coded data of the storage inside can be the sample data prestored,
Can also be that the CCD camera 21 obtains the data for post-processing and storing immediately.
The comparing result that the processing circuit module 23 is used to be encoded according to the face line is to having in the acoustic information
Effect voice is extracted and separated, and the efficient voice refers to the voice messaging that user sends；The processing circuit module 23 is wrapped
Include microprocessor 231, voice recognition chip 233, FLASH storage chips 232, DSP (Digital Signal Processing) chip 234 and AMP
(power amplifier) chip 235, the microprocessor 231 and FLASH storage chips 232 are electrical with the voice recognition chip 233
Connection, the dsp chip 234 are electrically connected with the voice recognition chip 233 and AMP chips 235 respectively；The speech recognition
The acoustic information for the external environment condition that chip 233 is used to gather the microphone 1 according to the comparing result that the face line encodes enters
Row feature extraction, while coordinate described and determination is compared with the voice feature data of the storage inside of FLASH storage chips 232
Its corresponding voice；The microprocessor 231 is used for sound that is every unrelated with user and not being consistent (i.e. except user sends
Voice messaging beyond environmental noise) frequency spectrum produces the sound wave spectrum of opposite in phase (phase differ 180 °) and carries out whole counteractings
Or filter out；The dsp chip 234 is used to extract and separate from the acoustic information of the external environment condition by Digital Signal Processing
Go out the voice messaging that user sends；The voice messaging that the dsp chip 234 extracts is amplified processing by the AMP chips 235
And it is input to the audio frequency apparatuses such as loudspeaker and communication apparatus and carries out internal broadcasting or voice communication transmission.
In embodiments of the present invention, described lasing area line identification denoising device 100 is swept by infrared laser scan module 2
Retouch the changes in faces of user determine active user whether sounding, and extracted accordingly from the acoustic information of the external environment condition
And the voice messaging that user sends is isolated, even under the external environment condition of complexity, the noise reduction that can still reach 80dB is deep
Degree, can meet the normal talking that confidence level is higher under adverse circumstances.
On the basis of above-described embodiment, as shown in fig.2, to apply the lasing area line identification described in above-described embodiment
The structural representation of the lasing area line identification noise cancelling headphone of denoising device 100.
Lasing area line identification noise cancelling headphone described in the embodiment of the present invention be headphone, including the identification of lasing area line is dropped
Make an uproar device 100, first support 200, second support 300 and two earmuffs 400；The first support 200 is arcuate structure, with
The head shape matching of people, described two earmuffs 400 are arranged oppositely and are separately fixed under two of the first support 200
End, described two earmuffs 400 are respectively at two ears of people；The lasing area line identification denoising device 100 passes through described second
Support 300 is fixedly mounted on one of earmuff 400, and the lasing area line identification denoising device 100 is being located at the mouth of people just
Front is about at 10cm~20cm.
CCD windows 101, infrared window 102 and Mike are offered respectively on the lasing area line identification denoising device 100
Window 103, correspond to respectively in the CCD windows 101, infrared window 102 and Mike's window 103 and the CCD shootings are installed
First 21, Infrared laser emission device 22 and microphone 1, wherein, the CCD windows 101 are used for the CCD camera 21 and obtain figure
Picture, the infrared window 102 export uniform light for the Infrared laser emission device 22, and Mike's window 103 is used for
The microphone 1 gathers the voice messaging that user sends.
The earmuff 400 includes ear casing 401, loudspeaker 402, plastic layer 403, cotton layer 404, the first spongy layer 405, the
Two spongy layers 406；The outlet sound mouth periphery of the ear casing 401 is coated with second spongy layer 406, second spongy layer
406 be leather sheath sound-isolating sponge, and the inner side of the ear casing 401 is fixed on by EVA glue or other binding agents；The ear casing
The inside of 401 outlet sound mouth correspondence position, be disposed with from inside to outside the loudspeaker 402, plastic layer 403, cotton layer 404 with
And first spongy layer 405；The loudspeaker 402 are used to receive the voice messaging that the lasing area line identification denoising device 100 exports
And sounding, the plastic layer 403 is that double-layer plastic is used for sound insulation, and the plastic layer 403 is at the internal layer of the loudspeaker 402
Edge is machined with stomata, mainly prevents from expanding with heat and contract with cold and heaves and tympanitic note；The spongy layer 405 of cotton layer 404 and first
Thickness is relatively thin, for space dust-proof while that reduction is shared.
Lasing area line identification noise cancelling headphone described in the embodiment of the present invention applies the lasing area that above-described embodiment is provided
Line identifies denoising device, and the lasing area line identification noise cancelling headphone possesses lasing area line described in above-described embodiment and identifies denoising device
Corresponding functional part and beneficial effect, not ins and outs of detailed description in the present embodiment, reference can be made to above-mentioned lasing area
Line identifies the embodiment of denoising device, and the embodiment of the present invention will not be repeated here.
On the basis of above-described embodiment, the lasing area line identification noise cancelling headphone can also be In-Ear Headphones, described
Earmuff 400 replaces with earplug and corresponding function can be achieved.
On the basis of above-described embodiment, as shown in fig.3, identifying noise reduction side for lasing area line described in the embodiment of the present invention
The schematic flow sheet of method, comprises the following steps：
S301：Gather the acoustic information of external environment condition, including the voice messaging and environmental noise that user sends；
S302：Export uniform light to be radiated on face, the light that collection face reflects, and according to the light
Strength Changes identification face internal feature change to attributes so that it is determined that its corresponding face line coding, is compiled with the face line of storage inside
Code data are compared；
S303：The efficient voice in the acoustic information is extracted and divided according to the comparing result that the face line encodes
From the efficient voice refers to the voice messaging that user sends.
Lasing area line identification noise-reduction method described in the embodiment of the present invention is applied to the lasing area that above-described embodiment is provided
Line identifies denoising device, and the lasing area line identification noise-reduction method possesses lasing area line described in above-described embodiment and identifies denoising device
Corresponding functional part and beneficial effect, not ins and outs of detailed description in the present embodiment, reference can be made to above-mentioned lasing area
Line identifies the embodiment of denoising device, and the embodiment of the present invention will not be repeated here.
In above-described embodiment provided by the present invention, it should be understood that the module illustrated as separating component can
To be or may not be physically separate, you can with positioned at a place, or can also be distributed on multiple positions.
It can select therein some or all of to realize the purpose of this embodiment scheme according to the actual needs.
Embodiments of the invention are these are only, the scope of the claims of the present invention are not intended to limit, although with reference to the foregoing embodiments
The present invention is described in detail, for those skilled in the art comes, it still can be to foregoing each specific real
Apply the technical scheme described in mode to modify, or equivalence replacement is carried out to which part technical characteristic.It is every to utilize this
The equivalent structure that description of the invention and accompanying drawing content are done, other related technical areas are directly or indirectly used in, similarly
Within scope of patent protection of the present invention.
Claims (10)
1. a kind of lasing area line identifies denoising device, it is characterised in that including：Microphone and infrared laser scan module, institute
Microphone is stated to be electrically connected with infrared laser scan module；The microphone is used for the acoustic information for gathering external environment condition, including
The voice messaging and environmental noise that user sends, and the acoustic information is sent to the infrared laser scan module；Institute
State infrared laser scan module be used for it is synchronous obtain the face-image of user and corresponding generation face line encodes, and deposited with inside
The face line coded data of storage is compared so that it is determined that the voice messaging that user sends；
The infrared laser scan module includes CCD camera, Infrared laser emission device and processing circuit module, described infrared
Generating laser combination is arranged on the CCD camera, and the CCD camera is electrically connected with the processing circuit module；
The Infrared laser emission device is radiated at face for exporting uniform light, and the CCD camera collection face is reflected back
The light come, and identify face internal feature change to attributes so that it is determined that its corresponding face line according to the Strength Changes of the light
Coding, while be compared with the face line coded data of storage inside and export comparison result to the processing circuit module, institute
Processing circuit module is stated to be used to carry the efficient voice in the acoustic information according to the comparing result that the face line encodes
Take and separate, the efficient voice refers to the voice messaging that user sends.
2. lasing area line according to claim 1 identifies denoising device, it is characterised in that：The Infrared laser emission device bag
Include infrared laser LED, optical filter, even smooth film and diverging lens, the infrared laser LED, optical filter, even smooth film and dissipate
Light microscopic is coaxially disposed, and the optical filter is used to filter out interference light, the even smooth film and diverging lens be then respectively used to even light and
Astigmatism and coordinate uniform light is radiated on face；The infrared laser LED is described red as light source output infrared laser
Outer laser is radiated on face after optical filter, even smooth film and diverging lens successively.
3. lasing area line according to claim 1 identifies denoising device, it is characterised in that：The processing circuit module includes
Microprocessor, voice recognition chip, FLASH storage chips and dsp chip, the microprocessor, FLASH storage chips and
Dsp chip is electrically connected with the voice recognition chip；The voice recognition chip is used for pair encoded according to the face line
The acoustic information of the external environment condition gathered than result to the microphone carries out feature extraction, while coordinates described and and FLASH
The voice feature data of storage chip storage inside, which is compared, determines its corresponding voice；The microprocessor is used for except use
The sound wave spectrum that environmental noise beyond the voice messaging that family is sent produces opposite in phase carries out whole counteractings or filtered out；It is described
Dsp chip is used to the language that user sends is extracted and isolated from the acoustic information of the external environment condition by Digital Signal Processing
Message ceases.
4. lasing area line according to claim 3 identifies denoising device, it is characterised in that：The processing circuit module is also wrapped
AMP chips are included, the AMP chips are electrically connected with the dsp chip, the voice that the AMP chips extract the dsp chip
Information is amplified processing.
5. a kind of lasing area line identifies noise cancelling headphone, applied to the lasing area line identification described in the claims any one of 1-4
Denoising device, it is characterised in that including：Lasing area line identification denoising device, first support, second support and two earmuffs；
The first support is arcuate structure, and described two earmuffs are arranged oppositely and are separately fixed under two of the first support
End, the lasing area line identification denoising device are fixedly mounted on one of earmuff by the second support.
6. lasing area line according to claim 5 identifies noise cancelling headphone, it is characterised in that：The lasing area line identifies noise reduction
CCD windows, infrared window and Mike's window, the CCD windows, infrared window and Mike's window are offered on device respectively
Inside correspond to respectively and the CCD camera, Infrared laser emission device and microphone are installed, wherein, the CCD windows are used for institute
State CCD camera and obtain image, the infrared window is used for the Infrared laser emission device and exports uniform light, the Mike
Window is used for the voice messaging that microphone collection user sends.
7. lasing area line according to claim 5 identifies noise cancelling headphone, it is characterised in that：The earmuff include ear casing,
Loudspeaker, plastic layer, cotton layer, the first spongy layer；The inside of the outlet sound mouth correspondence position of the ear casing, sets successively from inside to outside
It is equipped with the loudspeaker, plastic layer, cotton layer and the first spongy layer.
8. lasing area line according to claim 6 identifies noise cancelling headphone, it is characterised in that：The plastic layer is double-layer plastic
For sound insulation, and the plastic layer is machined with stomata in edge at the internal layer of the loudspeaker.
9. lasing area line according to claim 6 identifies noise cancelling headphone, it is characterised in that：The earmuff also includes the second sea
Continuous layer, second spongy layer are leather sheath sound-isolating sponge, and second spongy layer is coated on the outlet sound mouth periphery of the ear casing.
10. a kind of lasing area line identifies noise-reduction method, applied to the lasing area line identification described in the claims any one of 1-4
Denoising device, it is characterised in that including：
Gather the acoustic information of external environment condition, including the voice messaging and environmental noise that user sends；
Export uniform light to be radiated on face, the light that collection face reflects, and become according to the intensity of the light
Change identification face internal feature change to attributes so that it is determined that its corresponding face line coding, enters with the face line coded data of storage inside
Row compares；
The efficient voice in the acoustic information is extracted and separated according to the comparing result that the face line encodes, it is described to have
Effect voice refers to the voice messaging that user sends.
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