CN105657150A - Noise elimination method and device and electronic device - Google Patents
Noise elimination method and device and electronic device Download PDFInfo
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- CN105657150A CN105657150A CN201510632541.0A CN201510632541A CN105657150A CN 105657150 A CN105657150 A CN 105657150A CN 201510632541 A CN201510632541 A CN 201510632541A CN 105657150 A CN105657150 A CN 105657150A
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 230000008030 elimination Effects 0.000 title abstract 3
- 238000003379 elimination reaction Methods 0.000 title abstract 3
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 230000006854 communication Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Quality & Reliability (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computational Linguistics (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a noise elimination method and device and an electronic device. The method comprises following steps: analyzing original voices recorded by the electronic device in real time; obtaining noise feature information of environment noises; determining reverse noises based on the noise feature information, wherein the determined reverse noises are used for overlapping the environment noises so as to cancel each other; and using the reverse noises to carry out noise elimination processing to the original voices, thus obtaining user voices. Visually, through the reverse noise technique provided by the invention, the environment noises are effectively eliminated; in application of the method and the devices provided by the invention, the environment noises of a terminal device in the call process can be effectively eliminated; and the call quality of the terminal device can be promoted.
Description
Technical field
The invention belongs to technical field of noise treatment, particularly relate to a kind of method of canceling noise, device and electronics.
Background technology
At present, the terminating units such as smart mobile phone are in communication process, and the sound that can be received by microphone is sent to without distinction answers terminal.
In communication process, there will be the situation that noise is bigger unavoidably, such as, terminal user is when conversing in the public places such as public transport, subway or station, and the noise of surrounding enviroment is often bigger. The terminating units such as existing smart mobile phone, filter owing to not having relevant noise, remove or noise reduction means, thus the user speech of mutual superposition and environment noise can be transferred to together and meet hearer, finally speech quality can be produced bigger impact. Based on this, this area need to provide a kind of effective noise filtration, clearance technique, to promote speech quality.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of method of canceling noise, device and electronics, it is intended to effectively eliminate the environment noise in terminating unit communication process, promote the speech quality of terminating unit.
For this reason, the present invention's openly following technical scheme:
A kind of method of canceling noise, is applied to electronics, and described method comprises:
Obtaining the original voice that described electronics is included in real time, described original voice comprises user speech and the environment noise of mutual superposition;
Resolve described original voice, obtain the feature of noise information of described environment noise;
Based on described feature of noise information, it is determined that a reverse noise, described reverse noise for cancelling out each other after superposing with described environment noise;
Utilize described reverse noise, described original voice is carried out noise eliminating process, obtains described user speech.
Aforesaid method, it is preferable that, the noise waveform of environment noise described in described feature of noise information and frequency noise, the then described original voice of described parsing, obtain the feature of noise information of described environment noise, comprising:
According to the user's tone color prestored, parse in described original voice the user speech waveform of the described user speech comprised; The user speech sample that described user's tone color gathers in advance by analyzing obtains;
Based on the original voice waveform that described user speech waveform and described original voice are corresponding, parse the described noise waveform of described environment noise and described frequency noise.
Aforesaid method, it is preferable that, based on described feature of noise information, it is determined that a reverse noise, comprising:
Based on described noise waveform and described frequency noise, it is determined that go out a reverse noise;The frequency of described reverse noise is identical with described frequency noise, and waveform and the described noise waveform of described reverse noise are reverse.
Aforesaid method, it is preferable that, described utilize described reverse noise, described original voice carried out noise eliminating process, obtains described user speech, comprising:
With described original voice, described reverse noise is carried out sound superpose, obtain described user speech.
A kind of noise absorber, is applied to electronics, and described device comprises:
Acquisition module, for obtaining the original voice that described electronics is included in real time, described original voice comprises user speech and the environment noise of mutual superposition;
Parsing module, for resolving described original voice, obtains the feature of noise information of described environment noise;
Determination module, for based on described feature of noise information, it is determined that a reverse noise, and described reverse noise for cancelling out each other after superposing with described environment noise;
Noise eliminating module, for utilizing described reverse noise, carries out noise eliminating process to described original voice, obtains described user speech.
Said apparatus, it is preferable that, described parsing module comprises:
First resolution unit, for according to the user's tone color prestored, parsing in described original voice the user speech waveform of the described user speech comprised; The user speech sample that described user's tone color gathers in advance by analyzing obtains;
2nd resolution unit, for the original voice waveform corresponding based on described user speech waveform and described original voice, parses the described noise waveform of described environment noise and described frequency noise.
Said apparatus, it is preferable that, described determination module comprises:
Determining unit, for based on described noise waveform and described frequency noise, it is determined that go out a reverse noise; The frequency of described reverse noise is identical with described frequency noise, and waveform and the described noise waveform of described reverse noise are reverse.
Said apparatus, it is preferable that, described noise eliminating module comprises:
Sound overlap-add procedure unit, superposes for described reverse noise is carried out sound with described original voice, obtains user speech.
A kind of electronics, comprises noise absorber as above.
By above scheme it will be seen that method of canceling noise disclosed in the present application, device and electronics, resolve the original voice that electronics is included in real time, obtain the feature of noise information of environment noise; And determine a reverse noise based on described feature of noise information, determined reverse noise is for cancelling out each other after superposing with described environment noise; Afterwards, utilize described reverse noise that described original voice is carried out noise eliminating process, obtain user speech. Visible, the application is by providing a kind of oppositely noise technology, it is achieved that effectively eliminated by environment noise, thus, application the application can effectively eliminate the environment noise of terminating unit in communication process, promotes the speech quality of terminating unit.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the method for canceling noise schema that the embodiment of the present invention one provides;
Fig. 2 is the environment noise of the embodiment of the present invention one offer and the waveform superposition schematic diagram of reverse noise;
The reverse noise that Fig. 3 is the reverse noise source that the embodiment of the present invention one provides exports schematic diagram;
Fig. 4 is the structural representation of the noise absorber that the embodiment of the present invention two provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
The open a kind of method of canceling noise of the embodiment of the present invention one, described method can be applicable to electronics, and with reference to figure 1, described method can comprise the following steps:
S101: obtain the original voice that described electronics is included in real time, described original voice comprises user speech and the environment noise of mutual superposition.
The application's method specifically can be applied to the terminating units such as the smart mobile phone with call function, it is intended to carries out noise eliminating process by the original voice included in real time in communication process by terminating unit, promotes the speech quality of terminating unit.
Specifically, after terminating unit enters call state, can monitoring based on to the voice collection situation of terminating unit, obtain the original voice that terminating unit is included in real time by microphone, this original voice comprises user speech and the environment noise of mutual superposition.
S102: resolve described original voice, obtains the feature of noise information of described environment noise.
From physics angle, the sound that any sounding body sends has tone color corresponding separately, and the tone color that same sounding body is sounded is stablized constant. Tone color refers to the sensorial characteristics of sound, determine by the ratio of sound waveform each harmonic and sound waveform decay size in time, different sounding bodies is due to material, structure difference, cause the tone color sounded also different, thus, distinguish by tone color, determine the sound that different sounding body sends.
Based on this, the application utilizes user's tone color, resolves in original voice the waveform of the user speech comprised. For this reason, the application needs first to carry out following preprocessing process: gather user speech samples, based on gather user speech sample analysis user's tone color and preserve.
On described pretreated basis, when listening to the original voice that terminating unit is included in real time by microphone, user's tone color of storage can be utilized, the sound waveform figure of user speech is parsed from described original voice, owing to original voice comprises user speech and the environment noise two parts of mutual superposition altogether, therefore, in original voice, other sound except user speech all can be summed up as environment noise, thus can according to total waveform of original voice and the user speech waveform parsed, continue to parse the noise waveform of environment noise, meanwhile, the frequency noise of environment noise can be obtained.
S103: based on described feature of noise information, it is determined that a reverse noise, described reverse noise for cancelling out each other after superposing with described environment noise.
The application, by providing a kind of oppositely noise technology, realizes the environment noise to comprising in original voice and effectively eliminates. Namely with reference to figure 2, after the noise waveform parsing environment noise and frequency noise, determine that a kind of frequency is identical with described frequency noise, waveform and the reverse reverse noise of described noise waveform, follow-up superpose by this reverse noise and original voice are carried out sound, eliminate the environment noise in original voice.
S104: utilize described reverse noise, carries out noise eliminating process to described original voice, obtains described user speech.
On the basis determining described reverse noise, can utilize described reverse noise that described original voice is carried out noise eliminating process, with reference to figure 3, the present embodiment specifically arranges a kind of oppositely noisemaker in terminating unit, this reverse noisemaker can the parsing situation of real-time follow-up environment noise, and according to the noise waveform parsed and frequency noise, corresponding reverse noise is exported in real time to original voice, by original voice being carried out reverse noise superposition, it is achieved effectively eliminate the environment noise in original voice.
During practical application the application, by in the whole communication process of terminating unit, the feature of noise of real time parsing environment noise, and the reverse noise that the original voice output included to terminating unit of the feature of noise gone out based on real time parsing is corresponding, realize noise eliminating, finally obtain the user speech without noise doping. Thus on this basis, the user speech after noise treatment can be transferred to and answer terminal, and then can effectively promote speech quality.
During practical application the application, speech samples collection and the tone color analytic function of multi-user can be provided in terminating unit, thus, terminal owner can gather the speech samples of multiple user according to actual demand, and preserve the timbre information of multiple user, such as, preserve the timbre information etc. of each kinsfolk, thus on this basis, described terminating unit can be each kinsfolk and provides based on the high quality call function that noise filters.
By above scheme it will be seen that method of canceling noise disclosed in the present application, resolve the original voice that electronics is included in real time, obtain the feature of noise information of environment noise; And determine a reverse noise based on described feature of noise information, determined reverse noise for cancelling out each other after superposing with described environment noise; Afterwards, utilize described reverse noise that described original voice is carried out noise eliminating process, obtain user speech. Visible, the application is by providing a kind of oppositely noise technology, it is achieved that effectively eliminated by environment noise, thus, application the application can effectively eliminate the environment noise of terminating unit in communication process, promotes the speech quality of terminating unit.
Embodiment two
The open a kind of noise absorber of the present embodiment two, with reference to figure 4, described device comprises acquisition module 100, parsing module 200, determination module 300 and noise eliminating module 400.
Acquisition module 100, for obtaining the original voice that described electronics is included in real time, described original voice comprises user speech and the environment noise of mutual superposition.
Parsing module 200, for resolving described original voice, obtains the feature of noise information of described environment noise.
Described parsing module 200 comprises the first resolution unit and the 2nd resolution unit.
First resolution unit, for according to the user's tone color prestored, parsing in described original voice the user speech waveform of the user speech comprised; The user speech sample that described user's tone color gathers in advance by analyzing obtains;
2nd resolution unit, for the original voice waveform corresponding based on described user speech waveform and described original voice, parses noise waveform and the frequency noise of described environment noise.
Determination module 300, for based on described feature of noise information, it is determined that a reverse noise, and described reverse noise for cancelling out each other after superposing with described environment noise.
Described determination module 300 comprises determining unit, for based on described noise waveform and frequency noise, it is determined that go out a reverse noise; The frequency of described reverse noise is identical with described frequency noise, and waveform and the described noise waveform of described reverse noise are reverse.
Noise eliminating module 400, for utilizing described reverse noise, carries out noise eliminating process to described original voice, obtains user speech.
Described noise eliminating module 400 comprises sound overlap-add procedure unit, superposes for described reverse noise is carried out sound with described original voice, obtains described user speech.
For noise absorber disclosed in the embodiment of the present invention two, due to its with embodiment one disclosed in method of canceling noise corresponding, so what describe is fairly simple, relevant similarity refers to the explanation of method of canceling noise part in embodiment one, no longer describes in detail herein.
Embodiment three
The open a kind of electronics of the present embodiment three, described electronics can be specifically the terminating unit such as smart mobile phone with call function, and described electronics comprises the noise absorber as described in embodiment two. Utilizing described noise absorber, the environment noise in the voice included in communication process can effectively be eliminated by described electronics, and then can promote speech quality.
It should be noted that, each embodiment in this specification sheets all adopts the mode gone forward one by one to describe, each embodiment emphasis illustrate be the difference with other embodiments, between each embodiment identical similar part mutually see.
For convenience of description, it is divided into various module or unit to describe respectively with function when describing above system or device. Certainly, the function of each unit can be realized in same or multiple software and/or hardware when implementing the application.
As seen through the above description of the embodiments, the technician of this area can be well understood to the application and can realize by the mode that software adds required general hardware platform. Based on such understanding, the technical scheme of the application in essence or says that part prior art contributed can embody with the form of software product, this computer software product can be stored in storage media, such as ROM/RAM, magnetic disc, CD etc., comprise some instructions with so that a computer equipment (can be Personal Computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the application or embodiment.
Finally, also it should be noted that, herein, the relational terms of such as first, second, third and fourth etc. and so on is only used for separating an entity or operation with another entity or operational zone, and not necessarily requires or imply to there is any this kind of actual relation or sequentially between these entities or operation. And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, so that comprise the process of a series of key element, method, article or equipment not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise the key element intrinsic for this kind of process, method, article or equipment. When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. a method of canceling noise, is applied to electronics, it is characterised in that, described method comprises:
Obtaining the original voice that described electronics is included in real time, described original voice comprises user speech and the environment noise of mutual superposition;
Resolve described original voice, obtain the feature of noise information of described environment noise;
Based on described feature of noise information, it is determined that a reverse noise; Described reverse noise for cancelling out each other after superposing with described environment noise;
Utilize described reverse noise, described original voice is carried out noise eliminating process, obtains described user speech.
2. method according to claim 1, it is characterised in that, the noise waveform of environment noise described in described feature of noise information and frequency noise, the then described original voice of described parsing, obtain the feature of noise information of described environment noise, comprising:
According to the user's tone color prestored, parse in described original voice the user speech waveform of the described user speech comprised; The user speech sample that described user's tone color gathers in advance by analyzing obtains;
Based on the original voice waveform that described user speech waveform and described original voice are corresponding, parse the described noise waveform of described environment noise and described frequency noise.
3. method according to claim 2, it is characterised in that, based on described feature of noise information, it is determined that a reverse noise, comprising:
Based on described noise waveform and described frequency noise, it is determined that go out a reverse noise; The frequency of described reverse noise is identical with described frequency noise, and waveform and the described noise waveform of described reverse noise are reverse.
4. method according to claim 3, it is characterised in that, described utilize described reverse noise, described original voice is carried out noise eliminating process, obtains described user speech, comprising:
With described original voice, described reverse noise is carried out sound superpose, obtain described user speech.
5. a noise absorber, is applied to electronics, it is characterised in that, described device comprises:
Acquisition module, for obtaining the original voice that described electronics is included in real time, described original voice comprises user speech and the environment noise of mutual superposition;
Parsing module, for resolving described original voice, obtains the feature of noise information of described environment noise;
Determination module, for based on described feature of noise information, it is determined that a reverse noise, and described reverse noise for cancelling out each other after superposing with described environment noise;
Noise eliminating module, for utilizing described reverse noise, carries out noise eliminating process to described original voice, obtains described user speech.
6. device according to claim 5, it is characterised in that, the noise waveform of environment noise described in described feature of noise information and frequency noise, then described parsing module comprises:
First resolution unit, for according to the user's tone color prestored, parsing in described original voice the user speech waveform of the described user speech comprised; The user speech sample that described user's tone color gathers in advance by analyzing obtains;
2nd resolution unit, for the original voice waveform corresponding based on described user speech waveform and described original voice, parses the described noise waveform of described environment noise and described frequency noise.
7. device according to claim 6, it is characterised in that, described determination module comprises:
Determining unit, for based on described noise waveform and described frequency noise, it is determined that go out a reverse noise; The frequency of described reverse noise is identical with described frequency noise, and waveform and the described noise waveform of described reverse noise are reverse.
8. device according to claim 7, it is characterised in that, described noise eliminating module comprises:
Sound overlap-add procedure unit, superposes for described reverse noise is carried out sound with described original voice, obtains user speech.
9. an electronics, it is characterised in that, comprise the noise absorber as described in claim 5-8 any one.
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| CN201510632541.0A CN105657150A (en) | 2015-09-29 | 2015-09-29 | Noise elimination method and device and electronic device |
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| CN106453760A (en) * | 2016-10-11 | 2017-02-22 | 努比亚技术有限公司 | Method for improving environmental noise and terminal |
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