CN103077725A - Speech processing method and device - Google Patents
Speech processing method and device Download PDFInfo
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- CN103077725A CN103077725A CN2012105933608A CN201210593360A CN103077725A CN 103077725 A CN103077725 A CN 103077725A CN 2012105933608 A CN2012105933608 A CN 2012105933608A CN 201210593360 A CN201210593360 A CN 201210593360A CN 103077725 A CN103077725 A CN 103077725A
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- 238000003672 processing method Methods 0.000 title abstract 3
- 238000000034 methods Methods 0.000 claims description 65
- 230000000694 effects Effects 0.000 claims description 42
- 230000000875 corresponding Effects 0.000 claims description 28
- 230000004913 activation Effects 0.000 claims description 12
- 230000002708 enhancing Effects 0.000 description 7
- 238000010586 diagrams Methods 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 2
- 235000009808 lpulo Nutrition 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Abstract
Description
Technical field
The present invention relates to electronic information technical field, relate in particular to a kind of method and device of speech processes.
Background technology
The voice enhancing is called again speech de-noising or voice de-noising, its objective is to extract clean voice signal from the voice signal with noise, thereby improves speech tonequality, improves the intelligibility of voice, reduces obedient person's auditory fatigue sense.Current, the voice enhancing has obtained application in actual industrial or consumer products, flourish along with mobile terminal devices such as mobile phones, when under various abominable natures or man-made environment, conversing, a large amount of environmental noises can be superimposed together with speaker's voice signal, pass in obedient person's ear, so that voice quality reduces greatly, also this situation has promoted speech enhancement technique developing rapidly in mobile phone just.In order to improve good speech quality to the user, speech enhancement technique is widely used in mobile phone.
Current speech enhancement technique generally is that voice signal is carried out noise reduction, to improve the sharpness of voice.If but noise reduction is excessive, might damage the voice signal that the user needs, thereby reduce the intelligibility of voice, also may produce some disgusting single frequency tone simultaneously.
Because everyone sense of hearing and psychology there are differences perception and the understanding of sound, so the effect after speech de-noising is also had to different impressions, the same section voice signal after speech enhancement technique is processed, the somebody may think that denoising effect is pretty good, the somebody may think that effect is generally even bad, and the somebody may feel denoising method on the damage of the voice signal of needs affected he to voice signal understanding, also the somebody may think that the single frequency tone set that denoising method brings is comparatively irritated
In the process that realizes the embodiment of the invention, the inventor finds that there are the following problems at least in the prior art:
Voice enhancement method in the current mobile terminal devices such as mobile phone is comparatively single, and the voice signal after strengthening through voice is comparatively single.
Summary of the invention
Embodiments of the invention provide a kind of method and device of speech processes, can solve in the prior art because the voice enhancement method in the mobile terminal devices such as mobile phone is comparatively single, through the comparatively single problem of voice signal after the voice enhancing.
For achieving the above object, the present invention adopts following technical scheme:
A kind of method of speech processes comprises:
Receive the call voice signal;
After in a plurality of speech processing module that set in advance one is activated, according to described speech processing module described call voice signal is carried out noise reduction process in mobile terminal device; Wherein, described a plurality of speech processing module is not identical to the noise reduction capability of described call voice signal.
A kind of device of speech processes comprises:
Receiving element is used for receiving the call voice signal;
Noise reduction processing unit after being used in a plurality of speech processing module that mobile terminal device sets in advance one and being activated, is carried out noise reduction process according to described speech processing module to described call voice signal; Wherein, described a plurality of speech processing module is not identical to the noise reduction capability of described call voice signal.
The method of speech processes provided by the invention and device, owing to be provided with a plurality of speech processing module in the mobile terminal device, described a plurality of speech processing module is not identical to the noise reduction capability of described call voice signal, by described a plurality of speech processing module noise reduction process the effect of call voice signal have difference.And voice enhancement method of the prior art is comparatively single, and general same mobile terminal device only has a kind of voice enhancement method, and the voice signal after strengthening through voice is also comparatively single.Therefore, the present invention has diversity through the call voice signal behind the noise reduction, can adapt to varying environment and different user to the requirement of voice signal.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The process flow diagram of the method for the speech processes that Fig. 1 (a) provides for the embodiment of the invention;
The synoptic diagram of a kind of mobile terminal device in the method for the speech processes that Fig. 1 (b) provides for the embodiment of the invention;
The process flow diagram of the method for the speech processes that Fig. 2 (a) provides for further embodiment of this invention;
The synoptic diagram of a kind of mobile terminal device in the method for the speech processes that Fig. 2 (b) provides for further embodiment of this invention;
The process flow diagram of the method for the speech processes that Fig. 3 provides for yet another embodiment of the invention;
The structural representation one of the device of the speech processes that Fig. 4 provides for the embodiment of the invention;
The structural representation two of the device of the speech processes that Fig. 5 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
For the advantage that makes technical solution of the present invention is clearer, below in conjunction with drawings and Examples the present invention is elaborated.
Shown in Fig. 1 (a), the method for the speech processes that the embodiment of the invention provides comprises:
101, receive the call voice signal.
Concrete, the voice signal when described call voice signal is conversed by mobile terminal device for the user.
102, after in a plurality of speech processing module that set in advance one is activated, according to described speech processing module described call voice signal is carried out noise reduction process in mobile terminal device.
Wherein, described a plurality of speech processing module is not identical to the noise reduction capability of described call voice signal.
Concrete, can be provided with a plurality of speech processing module in the described mobile terminal device, described a plurality of speech processing module can when mobile terminal device is produced, set in advance in described mobile terminal device.For example set in advance three kinds of selections " severe noise reduction ", " moderate noise reduction ", " slight noise reduction ", wherein the noise part can be effectively removed in " severe noise reduction " expression from Noisy Speech Signal, make the call voice signal sound comparatively clean, but might damage the call voice signal, thereby reduce the intelligibility of call voice, also may be with simultaneously and serve unpleasant single frequency tone set; May also can comprise the part noise in the call voice signal of " moderate noise reduction " expression after the noise reduction process, effective but the voice intelligibility may be than " severe noise reduction ", simultaneously single frequency tone set is less; And " slight noise reduction " is the noise in the slight reduction signal, but can itself damage do not arranged to former voice signal.For example, such as the design sketch of the described mobile terminal device of Fig. 1 (b).
In addition, described a plurality of speech processing module can also be that the demands of individuals according to the user arrange, and its concrete mode can be seen as among Fig. 2 (a), the embodiment shown in Figure 3, be repeated no more herein.
What deserves to be explained is that above-mentioned mobile terminal device can be the equipment that can carry out the mobile call business such as smart mobile phone etc.
The method of the speech processes that the embodiment of the invention provides, owing to be provided with a plurality of speech processing module in the mobile terminal device, described a plurality of speech processing module is not identical to the noise reduction capability of described call voice signal, by described a plurality of speech processing module noise reduction process the effect of call voice signal have difference.And voice enhancement method of the prior art is comparatively single, general same mobile terminal device only has a kind of voice enhancement method, also comparatively single through the voice signal after the voice enhancing, different user is not necessarily identical for the impression of this voice signal like this, might cause the individual user comparatively to be sick of the single voice signal of this kind.Therefore, the present invention has diversity through the call voice signal behind the noise reduction, can adapt to varying environment and different user to the requirement of voice signal.
Shown in Fig. 2 (a), the method for the speech processes that further embodiment of this invention provides comprises:
201, receive voice signal to be measured.
Concrete, the signal in the recording file that described voice signal to be measured can be the frequent residing environment of user.For example, the user works in factory, and this user need to be general just in this factory with the environment that mobile terminal device is conversed.Therefore, after described mobile terminal device is recorded to described residing environment, will be with the signal in the recording file that generates as voice signal to be measured, but not only be confined to this.
202, described voice signal to be measured is input in a plurality of phonetic algorithm modules that set in advance in the mobile terminal device carries out noise reduction process, to form a plurality of the first effect voice signals.
Concrete, described phonetic algorithm comprises can comprise four large classes: the method that subtracts based on frequency spectrum, based on the method for sef-adapting filter, based on the method for statistical model and the method for subspace-based, each class has comprised again a variety of algorithms, and they have characteristics separately.Described phonetic algorithm module is based on the formed module of various algorithms in the above-mentioned four large class methods.
203, play respectively described the first effect voice signal.
204, behind the first preferred voice signal in determining described the first effect voice signal, phonetic algorithm module corresponding to the described first preferred voice signal is set to speech processing module.
Concrete, with described a plurality of the first effect speech play out, listen to and estimate by the user, thus the first preferred voice signal in definite a plurality of the first effect voice.Like this, represent that the described first preferred voice signal is more suitable for the user and listens to, therefore just can phonetic algorithm module corresponding to the described first preferred voice signal be set to speech processing module.
205, receive the call voice signal.
Concrete, the voice signal when described call voice signal is conversed by mobile terminal device for the user.
206, show speech processing module information and described activation sign.
Concrete, described speech processing module information is used for the outwards effect of the described speech processing module of prompting, but not only is confined to this.For example, described speech processing module information can be the prompting of the expression environment such as " factory ", " office ", " highway ".Described activation sign is corresponding one by one with described speech processing module information, is used for carrying out the selection of speech processing module.
For example, the design sketch of the mobile terminal device shown in Fig. 2 (b) can comprise the speech processing module information of multiple environment and activate sign.
207, after in a plurality of activation sign that sets in advance one is clicked, according to the corresponding speech processing module of described sign information described call voice signal is carried out noise reduction process in mobile terminal device.
What deserves to be explained is that mobile terminal device of the present invention can be the smart mobile phone of outfit single microphone or a plurality of microphones etc., but not only is confined to this.
The method of the speech processes that further embodiment of this invention provides, owing to be provided with a plurality of speech processing module in the mobile terminal device, described a plurality of speech processing module is not identical to the noise reduction capability of described call voice signal, by described a plurality of speech processing module noise reduction process the effect of call voice signal have difference.And voice enhancement method of the prior art is comparatively single, general same mobile terminal device only has a kind of voice enhancement method, also comparatively single through the voice signal after the voice enhancing, different user is not necessarily identical for the impression of this voice signal like this, might cause the individual user comparatively to be sick of the single voice signal of this kind.Therefore, the present invention has diversity through the call voice signal behind the noise reduction, can adapt to varying environment and different user to the requirement of voice signal.
As shown in Figure 3, the method for the speech processes that yet another embodiment of the invention provides specifically comprises:
301, receive voice signal to be measured.
Concrete, the signal in the recording file that described voice signal to be measured can be the frequent residing environment of user.For example, the user works in factory, and this user need to be general just in this factory with the environment that mobile terminal device is conversed.Therefore, after described mobile terminal device is recorded to described residing environment, will be with the signal in the recording file that generates as voice signal to be measured, but not only be confined to this.
302, described voice signal to be measured is input in a plurality of phonetic algorithm modules that set in advance in the mobile terminal device carries out noise reduction process, to form a plurality of the first effect voice signals.
Concrete, described phonetic algorithm comprises can comprise four large classes: the method that subtracts based on frequency spectrum, based on the method for sef-adapting filter, based on the method for statistical model and the method for subspace-based, each class has comprised again a variety of algorithms, and they have characteristics separately.Described phonetic algorithm module is based on the formed module of various algorithms in the above-mentioned four large class methods.
303, play respectively described the first effect voice signal.
304, behind the first preferred voice signal in determining described the first effect voice signal, adjust the parameter of the parameter sets in phonetic algorithm module corresponding to the described first preferred voice signal.
Wherein, carry the key parameter of the described noise reduction capability of impact in the described parameter sets.
Concrete, described parameter sets comprises concerning each phonetic algorithm, determine the key parameter of its anti-acoustic capability, concrete can offer the user by cell phone manufacturer, for the user easy to use, such parameter is unsuitable too much, preferably one or two, for example for the method that subtracts based on frequency spectrum, in the theoretical algorithm to behind the signal subsection, the amplitude of multistage on average will affect the effect of noise reduction, mainly is to select how many segment signals to average meeting better, so just the signal hop count can be supplied user selection as an important parameter, can establish 2 sections, 3 sections, 4 sections, 5 sections these 4 selections; In addition, in noise reduction process, the reduction degree of the noise part of non-speech segment will have a strong impact on user's auditory perception, in general realize by going to reduce this part with a decay factor, this factor can not be too little can not be too large, so can arrange 0.1,0.2,0.3 0.4 several numerals are for user selection.For the method that subtracts based on frequency spectrum, just can offer above these two parameters of user for you to choose so, specifically can regulate to select the parameter sets of an optimization.
305, by the phonetic algorithm module after the parameter of adjusting described parameter sets described voice signal to be measured is carried out noise reduction process, to form a plurality of the second effect voice signals.
306, play respectively described the second effect voice signal.
307, behind the second preferred voice signal in determining described the second effect voice signal, according to the parameter of parameter sets corresponding to the described second preferred voice signal, dispose phonetic algorithm module corresponding to the described first preferred voice signal.
Concrete, with described a plurality of the second effect speech play out, listen to and estimate by the user, thus the second preferred voice signal in definite a plurality of the second effect voice.Like this, represent that the described second preferred voice signal is more suitable for the user and listens to, therefore can according to the parameter of parameter sets corresponding to the described second preferred voice signal, dispose phonetic algorithm module corresponding to the described first preferred voice signal.
308, phonetic algorithm module corresponding to the described first preferred voice signal is set to speech processing module.
309, receive the call voice signal.
Concrete, the voice signal when described call voice signal is conversed by mobile terminal device for the user.
310, show described speech processing module information and described activation sign.
Concrete, described speech processing module information is used for the outwards effect of the described speech processing module of prompting, but not only is confined to this.For example, described speech processing module information can be the prompting of the expression environment such as " factory ", " office ", " highway ".Described activation sign is corresponding one by one with described speech processing module information, is used for carrying out the selection of speech processing module.
311, after in a plurality of activation sign that sets in advance one is clicked, according to the corresponding speech processing module of described sign information described call voice signal is carried out noise reduction process in mobile terminal device.
What deserves to be explained is that mobile terminal device of the present invention can be the smart mobile phone of outfit single microphone or a plurality of microphones etc., but not only is confined to this.
The method of the speech processes that yet another embodiment of the invention provides, owing to be provided with a plurality of speech processing module in the mobile terminal device, described a plurality of speech processing module is not identical to the noise reduction capability of described call voice signal, by described a plurality of speech processing module noise reduction process the effect of call voice signal have difference.And voice enhancement method of the prior art is comparatively single, general same mobile terminal device only has a kind of voice enhancement method, also comparatively single through the voice signal after the voice enhancing, different user is not necessarily identical for the impression of this voice signal like this, might cause the individual user comparatively to be sick of the single voice signal of this kind.Therefore, the present invention has diversity through the call voice signal behind the noise reduction, can adapt to varying environment and different user to the requirement of voice signal.
As shown in Figure 4, the device of the speech processes that the embodiment of the invention provides comprises:
Receiving element 41 is used for receiving the call voice signal.Its specific implementation repeats no more referring to shown in the step 101 among Fig. 1 (a) herein.
Noise reduction processing unit 42 after being used in a plurality of speech processing module that mobile terminal device sets in advance one and being activated, is carried out noise reduction process according to described speech processing module to described call voice signal.
Wherein, described a plurality of speech processing module is not identical to the noise reduction capability of described call voice signal.Its specific implementation repeats no more referring to shown in the step 102 among Fig. 1 (a) herein.
Further, as shown in Figure 5, described device also comprises:
Setting unit 43 is used at mobile terminal device a plurality of speech processing module being set.
Further, as shown in Figure 5, described receiving element 41 also is used for receiving voice signal to be measured.
Described noise reduction processing unit 42 also is used for described voice signal to be measured is input in a plurality of phonetic algorithm modules that mobile terminal device sets in advance and carries out noise reduction process, to form a plurality of the first effect voice signals.
As shown in Figure 5, described device also comprises:
Broadcast unit 44 is used for playing respectively described the first effect voice signal.
Described setting unit 43, concrete being used for behind the first preferred voice signal of determining described the first effect voice signal, phonetic algorithm module corresponding to the described first preferred voice signal is set to speech processing module.
Further, as shown in Figure 5, described device also comprises:
Adjustment unit 45 is for the parameter of the parameter sets of adjusting phonetic algorithm module corresponding to the described first preferred voice signal.
Wherein, carry the key parameter of the described noise reduction capability of impact in the described parameter sets.
Described noise reduction processing unit 42 also is used for by the phonetic algorithm module after the parameter of adjusting described parameter sets described voice signal to be measured being carried out noise reduction process, to form a plurality of the second effect voice signals.
Described broadcast unit 44 also is used for playing respectively described the second effect voice signal.
Described setting unit 43 also is used for according to the parameter of parameter sets corresponding to the described second preferred voice signal, disposing phonetic algorithm module corresponding to the described first preferred voice signal behind the second preferred voice signal of determining described the second effect voice signal.
Concrete, as shown in Figure 5, described speech processing module carries and activates sign and sign information.
Described device also comprises:
Display unit 46 is used for showing described speech processing module information and described activation sign.
Described noise reduction processing unit 42 specifically is used for:
After in a plurality of activation sign that sets in advance one is clicked, according to the corresponding speech processing module of described sign information described call voice signal is carried out noise reduction process in mobile terminal device.
The device of the speech processes that the embodiment of the invention provides, owing to be provided with a plurality of speech processing module in the mobile terminal device, described a plurality of speech processing module is not identical to the noise reduction capability of described call voice signal, by described a plurality of speech processing module noise reduction process the effect of call voice signal have difference.And voice enhancement method of the prior art is comparatively single, general same mobile terminal device only has a kind of voice enhancement method, also comparatively single through the voice signal after the voice enhancing, different user is not necessarily identical for the impression of this voice signal like this, might cause the individual user comparatively to be sick of the single voice signal of this kind.Therefore, the present invention has diversity through the call voice signal behind the noise reduction, can adapt to varying environment and different user to the requirement of voice signal.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection domain with claim.
Claims (10)
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| CN103456305A (en) * | 2013-09-16 | 2013-12-18 | 东莞宇龙通信科技有限公司 | Terminal and speech processing method based on multiple sound collecting units |
| CN104217728A (en) * | 2014-09-09 | 2014-12-17 | 联想(北京)有限公司 | Audio processing method and electronic device |
| CN106375584A (en) * | 2016-09-13 | 2017-02-01 | 珠海市魅族科技有限公司 | Voice signal control method and device |
| CN108766454A (en) * | 2018-06-28 | 2018-11-06 | 浙江飞歌电子科技有限公司 | A kind of voice noise suppressing method and device |
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