CN105391829B - A kind of the call tone quality ameliorative way and system of mobile terminal - Google Patents
A kind of the call tone quality ameliorative way and system of mobile terminal Download PDFInfo
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- CN105391829B CN105391829B CN201510838065.8A CN201510838065A CN105391829B CN 105391829 B CN105391829 B CN 105391829B CN 201510838065 A CN201510838065 A CN 201510838065A CN 105391829 B CN105391829 B CN 105391829B
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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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Abstract
The invention discloses the call tone quality ameliorative ways and system of a kind of mobile terminal, acquire voice data when conversing by mobile terminal main microphon and are converted into corresponding electric signal, are handled the electric signal to obtain corresponding signal value；The signal value is compared with preset signal standards value, when the signal value is less than signal standards value, according to the signal value compensation signal value corresponding with the difference of signal standards value；Real-time compensation is carried out to the signal of main microphon, so that the signal magnitude of main microphon is remained above time microphone signal size, call tone quality is improved, brings to user and greatly facilitate.
Description
Technical field
The present invention relates to technical field of mobile terminals more particularly to a kind of call tone quality ameliorative ways of mobile terminal
And system.
Background technique
Mobile terminal includes mobile phone, tablet computer, handheld device etc..Existing mobile terminal all has microphone, can carry out
Voice-enabled chat and call function etc., microphone are all the standard configurations of mobile terminal.It takes the mobile phone as an example, microphone is a passive member
Part, when surrounding has noise, microphone can also be acquired, and after collecting antenna and being sent to other side's mobile phone, other side's mobile phone is heard
Noise, call tone quality is poor, affect call experience.In this regard, many cell phone manufacturers give some de-noising schemes, to make other side
The minimum that mobile phone is heard, wherein compare mainstream is exactly dual microphone de-noising scheme.The base of dual microphone de-noising scheme
Present principles are: mobile phone terminal configures 2 microphones, and each 1 microphone in bottom and top is referred to as main wheat and time wheat, main wheat
It is responsible for collecting voice and noise, secondary wheat is responsible for collecting noise, and the signal subtraction that the two is collected into, noise is canceled out, remaining
It is exactly voice, it is thus achieved that preferable de-noising purpose.But this de-noising scheme want can the premise of preferably working effect be:
The voice that main wheat is collected into is had to bigger than secondary wheat, and otherwise, de-noising effect not only declines, in extreme circumstances can also be by voice
As noise to curbing, call tone quality is substantially reduced.For example it is accustomed to according to the grip position of common people, main wheat is due at mobile phone bottom
Portion, natural closer from mouth portion, collected voice is also bigger than secondary wheat, disappears then can generally meet above-mentioned dual microphone
The requirement of the denoising algorithm for scheme of making an uproar, but the problem of due to use habit, in some cases, mobile phone bottom instead can from mouth portion
Far, so that the collected signal of winner wheat is less than time wheat instead, can not meet algorithm requirement, call tone quality is caused to decline.
For reality, when grip position variation, theoretically main wheat, the collected signal magnitude of secondary wheat can all change.But
It since earpiece is at the top of mobile phone, speaks to not hear other side, the change in location of mobile phone top area is very little in fact, substantially
It maintains near human ear, it is believed that position is basically unchanged.And secondary wheat also is located at the top of mobile phone, it is closer from earpiece, therefore its opposite position
It sets it is also assumed that constant, i.e., the secondary collected voice size of wheat is also relatively constant.And mobile phone bottom is limited since nothing is excessive,
Change in location is randomness, may be become closer from mouth, it is also possible to farther.Most of the time, since antenna is at mobile phone bottom
Portion, many people's habits can get mobile phone bottom from mouth farther out to reduce radiation, then the collected signal of main wheat will become
It is small, so that the main collected signal of wheat is less than time wheat instead, and call tone quality is caused to decline.
It brings inconvenience to users.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is that the call tone quality ameliorative way and system of a kind of mobile terminal are provided,
The problem of aiming to solve the problem that existing mobile terminal call lower tone.
The technical proposal for solving the technical problem of the invention is as follows:
A kind of call tone quality ameliorative way of mobile terminal, wherein include:
A, voice data when conversing is acquired by mobile terminal main microphon and is converted into corresponding electric signal, to described
Electric signal is handled to obtain corresponding signal value；
B, the signal value is compared with preset signal standards value, when the signal value is less than signal standards value
When, according to the signal value compensation signal value corresponding with the difference of signal standards value.
The call tone quality ameliorative way of the mobile terminal, wherein the step B further include:
B11, when the signal value be greater than or equal to signal standards value when, the signal value is not compensated.
The call tone quality ameliorative way of the mobile terminal, wherein in the step B, according to the signal value with
The difference of signal standards value corresponds to the compensation signal value
The signal value is compensated by the way that denoising algorithm is corresponding with the difference of signal standards value according to the signal value, to improve
Call tone quality.
The call tone quality ameliorative way of the mobile terminal, wherein the step B is specifically included:
B10, according to signal value difference corresponding with preset signal standards value calculating, the difference is equal to signal post
Quasi- value subtraction signal value；
B20, the difference is compared with preset threshold value, it is corresponding according to difference when the difference is greater than threshold value
Compensate the signal value；When the difference is less than or equal to threshold value, signal value described in corresponding uncompensation.
The call tone quality ameliorative way of the mobile terminal, wherein the threshold value is 0.
A kind of call tone quality improvement system of mobile terminal, wherein include:
Acquisition module, for acquiring voice data when conversing by mobile terminal main microphon and being converted into corresponding electricity
Signal handles the electric signal to obtain corresponding signal value；
Compensating module, for the signal value to be compared with preset signal standards value, when the signal value is less than
When signal standards value, according to the signal value compensation signal value corresponding with the difference of signal standards value.
The call tone quality of the mobile terminal improves system, wherein the compensating module includes:
Compensating unit, for not mended to the signal value when the signal value is greater than or equal to signal standards value
It repays.
The call tone quality of the mobile terminal improves system, wherein the compensating module is also used to according to the signal
Value compensates the signal value by the way that denoising algorithm is corresponding with the difference of signal standards value, to improve call tone quality.
The call tone quality of the mobile terminal improves system, wherein the compensating module includes:
Difference computational unit is used for according to signal value difference corresponding with preset signal standards value calculating, described
Difference is equal to signal standards value subtraction signal value；
Difference comparsion unit, for the difference to be compared with preset threshold value, when the difference is greater than threshold value,
The signal value is compensated according to difference is corresponding；When the difference is less than or equal to threshold value, signal value described in corresponding uncompensation.
The call tone quality of the mobile terminal improves system, wherein the threshold value is 0.
The call tone quality ameliorative way and system of a kind of mobile terminal provided by the present invention, efficiently solve existing
The collected signal of main microphon, which is less than time microphone, when mobile terminal uses dual microphone de-noising scheme causes call tone quality poor
The problem of, voice data when conversing is acquired by mobile terminal main microphon and is converted into corresponding electric signal, to the electricity
Signal is handled to obtain corresponding signal value；The signal value is compared with preset signal standards value, when the letter
When number value is less than signal standards value, the signal value is compensated according to the signal value is corresponding with the difference of signal standards value；To master
The signal of microphone carries out real-time compensation, so that the signal magnitude of main microphon is remained above time microphone signal size, improves
Call tone quality, brings to user and greatly facilitates.
Detailed description of the invention
Fig. 1 is the flow chart of the call tone quality ameliorative way preferred embodiment of mobile terminal provided by the invention.
Fig. 2 is that the call tone quality of mobile terminal provided by the invention improves the structural block diagram of system preferred embodiment.
Specific embodiment
The present invention provides the call tone quality ameliorative way and system of a kind of mobile terminal, to make the purpose of the present invention, technology
Scheme and advantage are clearer, clear, and the present invention is described in more detail as follows in conjunction with drawings and embodiments.It should manage
Solution, the specific embodiments described herein are merely illustrative of the present invention, is not intended to limit the present invention.
By mobile terminal be mobile phone for, the present invention be on the basis of existing mobile phone dual microphone de-noising scheme, it is right
The signal of the main microphon acquisition of mobile phone carries out real-time compensation, so that its signal magnitude moment be made to be all larger than the signal of time microphone
Size, to improve call tone quality, avoids to guarantee that the denoising algorithm of dual microphone de-noising scheme can preferably work
Because main microphon collected signal is less than time microphone, can not meet algorithm requirement, causes what call tone quality declined to ask
Topic.
Referring to Fig. 1, Fig. 1 is the process of the call tone quality ameliorative way preferred embodiment of mobile terminal provided by the invention
Figure, as shown, the described method comprises the following steps:
Step S100, voice data when conversing is acquired by mobile terminal main microphon and is converted into corresponding telecommunications
Number, the electric signal is handled to obtain corresponding signal value；
Step S200, the signal value is compared with preset signal standards value, when the signal value is less than signal
When standard value, according to the signal value compensation signal value corresponding with the difference of signal standards value.
Above-mentioned steps are described in detail below with reference to specific embodiment.
In the step s 100, voice data when conversing is acquired by mobile terminal main microphon and is converted into corresponding electricity
Signal handles the electric signal to obtain corresponding signal value.Specifically, it is said so that mobile terminal is mobile phone as an example
Bright as follows, mobile phone includes a main microphon and peripheral circuit.Main microphon picks up sound and is converted to electric signal, and electric signal is through outer
Corresponding signal value is obtained after enclosing processing of circuit.
In step s 200, the signal value is compared with preset signal standards value, when the signal value is less than
When signal standards value, according to the signal value compensation signal value corresponding with the difference of signal standards value.Specifically, about
Signal standards value, after certain Cell Phone Design determines, main microphon and secondary microphone type selecting, relative position, peripheral circuit etc.
It is formed simultaneously.The present invention determines a standard grip position according to the use habit of most people.Under the grip position, main microphon letter
Number it is significantly greater than time microphone signal, existing denoising algorithm works well.By the collected signal of main microphon under this grip position
Size is defined as signal standards value Uo, and the value is pre-stored in cell phone system.Due to Mobile phone modeling, then main under standard grip position
The collected signal standards value Uo of microphone can also be decided accordingly, i.e., the signal standards value Uo of each mobile phone corresponds to each
A mobile phone.
The signal value is compared with preset signal standards value, when the signal value is less than signal standards value,
According to the signal value compensation signal value corresponding with the difference of signal standards value.Further, when the signal value is greater than
Or when being equal to signal standards value, the signal value is not compensated.Specifically, when grip position changes, main microphon acquisition
The signal value U variation arrived, generates a difference with Uo.When signal becomes smaller, is i.e. when U < Uo, difference is compensated, compensated letter is made
Number value U '=Uo, conversely, then uncompensation, i.e. offset are 0.It is final when main wheat is from remote mouth by the compensation to difference
Signal when can reach the denoising algorithm of existing dual microphone de-noising scheme is still able to maintain consistent with standard grip position and is significantly greater than
Secondary wheat signal thereby guarantees that existing denoising algorithm works normally, provides good call tone quality.The present invention is to existing de-noising
The improvement of algorithm.
In practical application, including: according to the signal value compensation signal value corresponding with the difference of signal standards value
The signal value is compensated by the way that denoising algorithm is corresponding with the difference of signal standards value according to the signal value, to improve conversation voice
Matter.Then, using the denoising algorithm of existing dual microphone de-noising scheme, the signal that primary and secondary wheat transmits is received, inhibits noise,
Retain and optimize vocal sections, improves call tone quality.
Preferably, the step S200 is specifically included:
S210, according to signal value difference corresponding with preset signal standards value calculating, the difference is equal to signal
Standard value subtraction signal value；
S220, the difference is compared with preset threshold value, it is corresponding according to difference when the difference is greater than threshold value
Compensate the signal value；When the difference is less than or equal to threshold value, signal value described in corresponding uncompensation.
Specifically, according to the collected signal value U of the main microphon and signal standards value Uo that prestores, calculating difference Δ U=
Uo-U.The difference is compared with preset threshold value, when the difference is greater than threshold value, according to the corresponding compensation of difference
Signal value；When the difference is less than or equal to threshold value, signal value described in corresponding uncompensation.In practical application, the threshold value
It is 0, certainly, threshold value can also be according to being actually configured.
Call tone quality ameliorative way based on above-mentioned mobile terminal, the present invention also provides a kind of conversation voices of mobile terminal
Matter improves system, as shown in Fig. 2, the system comprises:
Acquisition module 10, for acquiring voice data when conversing by mobile terminal main microphon and being converted into corresponding
Electric signal handles the electric signal to obtain corresponding signal value；Specifically as described in step S100；
Compensating module 20, for the signal value to be compared with preset signal standards value, when the signal value is small
When signal standards value, according to the signal value compensation signal value corresponding with the difference of signal standards value；Specific such as step
Described in S200.
Further, the compensating module 20 includes:
Compensating unit, for not mended to the signal value when the signal value is greater than or equal to signal standards value
It repays.
Further, the compensating module 20 is also used to the difference according to the signal value and signal standards value by disappearing
Algorithm of making an uproar is corresponding to compensate the signal value, to improve call tone quality.
Further, the compensating module 20 includes:
Difference computational unit is used for according to signal value difference corresponding with preset signal standards value calculating, described
Difference is equal to signal standards value subtraction signal value；
Difference comparsion unit, for the difference to be compared with preset threshold value, when the difference is greater than threshold value,
The signal value is compensated according to difference is corresponding；When the difference is less than or equal to threshold value, signal value described in corresponding uncompensation.
Further, the threshold value is 0.
Mobile terminal of the present invention is the mobile terminal with microphone such as mobile phone, tablet computer.
In conclusion the call tone quality ameliorative way and system of a kind of mobile terminal provided by the invention, by mobile whole
Voice data when the main microphon acquisition call of end is simultaneously converted into corresponding electric signal, is handled to obtain pair to the electric signal
The signal value answered；The signal value is compared with preset signal standards value, when the signal value is less than signal standards value
When, according to the signal value compensation signal value corresponding with the difference of signal standards value；The signal of main microphon is carried out real
When compensate so that the signal magnitude of main microphon is remained above time microphone signal size, improve call tone quality, to user with
Greatly to facilitate, by software realization, has realized that simply cost is relatively low.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of call tone quality ameliorative way of mobile terminal, which is characterized in that comprising steps of
A, voice data when conversing is acquired by mobile terminal main microphon and is converted into corresponding electric signal, to the telecommunications
It number is handled to obtain corresponding signal value；
B, the signal value is compared with preset signal standards value, when the signal value is less than signal standards value, root
According to the signal value compensation signal value corresponding with the difference of signal standards value, wherein the signal standards value corresponds to each
A mobile terminal；
The set-up mode of the signal standards value specifically: a standard grip position is determined, under the standard grip position, by the mark
The collected signal magnitude of main microphon is defined as signal standards value under quasi- grip position, and the signal standards value is prestored and mobile phone
In system.
2. the call tone quality ameliorative way of mobile terminal according to claim 1, which is characterized in that the step B is also wrapped
It includes:
B11, when the signal value be greater than or equal to signal standards value when, the signal value is not compensated.
3. the call tone quality ameliorative way of mobile terminal according to claim 1, which is characterized in that in the step B,
Include: according to the signal value compensation signal value corresponding with the difference of signal standards value
The signal value is compensated by the way that denoising algorithm is corresponding with the difference of signal standards value according to the signal value, to improve call
Sound quality.
4. the call tone quality ameliorative way of mobile terminal according to claim 1, which is characterized in that the step B is specific
Include:
B10, according to signal value difference corresponding with preset signal standards value calculating, the difference is equal to signal standards value
Subtraction signal value；
B20, the difference is compared with preset threshold value, when the difference is greater than threshold value, is compensated according to difference is corresponding
The signal value；When the difference is less than or equal to threshold value, signal value described in corresponding uncompensation.
5. the call tone quality ameliorative way of mobile terminal according to claim 4, which is characterized in that the threshold value is 0.
6. a kind of call tone quality of mobile terminal improves system characterized by comprising
Acquisition module, for acquiring voice data when conversing by mobile terminal main microphon and being converted into corresponding telecommunications
Number, the electric signal is handled to obtain corresponding signal value；
Compensating module, for the signal value to be compared with preset signal standards value, when the signal value is less than signal
When standard value, according to the signal value compensation signal value corresponding with the difference of signal standards value, wherein the signal standards
Value corresponds to each mobile terminal；
Under the standard grip position, main microphon under the standard grip position is adopted for determining a standard grip position for setup module
The signal magnitude collected is defined as signal standards value, and by the signal standards value prestore in cell phone system.
7. the call tone quality of mobile terminal according to claim 6 improves system, which is characterized in that the compensating module packet
It includes:
Compensating unit, for not compensated to the signal value when the signal value is greater than or equal to signal standards value.
8. the call tone quality of mobile terminal according to claim 6 improves system, which is characterized in that the compensating module,
It is also used to compensate the signal value by the way that denoising algorithm is corresponding with the difference of signal standards value according to the signal value, it is logical to improve
Speech matter.
9. the call tone quality of mobile terminal according to claim 6 improves system, which is characterized in that the compensating module packet
It includes:
Difference computational unit, for according to signal value difference corresponding with preset signal standards value calculating, the difference
Equal to signal standards value subtraction signal value；
Difference comparsion unit, for the difference to be compared with preset threshold value, when the difference is greater than threshold value, according to
Difference is corresponding to compensate the signal value；When the difference is less than or equal to threshold value, signal value described in corresponding uncompensation.
10. the call tone quality of mobile terminal according to claim 9 improves system, which is characterized in that the threshold value is 0.
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| CN106887237A (en) * | 2017-02-09 | 2017-06-23 | 惠州Tcl移动通信有限公司 | Mobile terminal and its noise-reduction method conversed under headset mode, system |
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| CN102223428A (en) * | 2011-06-24 | 2011-10-19 | 中兴通讯股份有限公司 | Noise reducing method and mobile terminal |
| CN104378474A (en) * | 2014-11-20 | 2015-02-25 | 惠州Tcl移动通信有限公司 | Mobile terminal and method for lowering communication input noise |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1809105B (en) * | 2006-01-13 | 2010-05-12 | 北京中星微电子有限公司 | Dual-microphone speech enhancement method and system applicable to mini-type mobile communication devices |
| CN102801861B (en) * | 2012-08-07 | 2015-08-19 | 歌尔声学股份有限公司 | A kind of sound enhancement method and device being applied to mobile phone |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223428A (en) * | 2011-06-24 | 2011-10-19 | 中兴通讯股份有限公司 | Noise reducing method and mobile terminal |
| CN104378474A (en) * | 2014-11-20 | 2015-02-25 | 惠州Tcl移动通信有限公司 | Mobile terminal and method for lowering communication input noise |
| CN104994456A (en) * | 2015-07-07 | 2015-10-21 | 惠州Tcl移动通信有限公司 | Earphone capable of improving conversation tone quality and method thereof |
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