CN106961509A - Session parameter processing method, device and electronic equipment - Google Patents
Session parameter processing method, device and electronic equipment Download PDFInfo
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- CN106961509A CN106961509A CN201710279451.7A CN201710279451A CN106961509A CN 106961509 A CN106961509 A CN 106961509A CN 201710279451 A CN201710279451 A CN 201710279451A CN 106961509 A CN106961509 A CN 106961509A
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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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- 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
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/605—Portable telephones adapted for handsfree use involving control of the receiver volume to provide a dual operational mode at close or far distance from the user
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Environmental & Geological Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The embodiment of the invention discloses a kind of session parameter processing method, device and electronic equipment.The session parameter processing method includes：When carrying out hand-free call, voice signal is obtained；Calculate the snr value of the voice signal；Obtain hand-free call processing parameter corresponding with the snr value；Terminal is configured according to the hand-free call processing parameter, so that user carries out hand-free call.The embodiment of the present invention can improve flexibility when terminal carries out hand-free call.
Description
Technical field
The invention belongs to communication technical field, more particularly to a kind of session parameter processing method, device and electronic equipment.
Background technology
Hand-free call is a basic function of terminal, and it make it that terminal need not be achieved that voice by user close to ear
Call.But in correlation technique, terminal is when carrying out hand-free call, and the mode of operation of its up pickup is fixed, namely terminal
Pickup distance is fixed.This causes mode of operation of the terminal when carrying out hand-free call can not adapt to the change of surrounding environment,
Flexibility is poor.
The content of the invention
The embodiment of the present invention provides a kind of session parameter processing method, device and electronic equipment, can improve terminal progress
Flexibility during hand-free call.
The embodiment of the present invention provides a kind of session parameter processing method, including：
When carrying out hand-free call, voice signal is obtained；
Calculate the snr value of the voice signal；
Obtain hand-free call processing parameter corresponding with the snr value；
Terminal is configured according to the hand-free call processing parameter, so that user carries out hand-free call.
The embodiment of the present invention provides a kind of session parameter processing unit, including：
First acquisition module, for when carrying out hand-free call, obtaining voice signal；
Computing module, the snr value for calculating the voice signal；
Second acquisition module, for obtaining hand-free call processing parameter corresponding with the snr value；
Setup module, for being configured according to the hand-free call processing parameter to terminal, so that user's progress is hands-free
Call.
The embodiment of the present invention also provides a kind of electronic equipment, including memory, processor, and is stored in the memory
In and the computer program that can be run in the processor, the present invention is realized described in the computing device during computer program
Step in the session parameter processing method that embodiment is provided.
Session parameter processing method provided in an embodiment of the present invention, device and electronic equipment, when carrying out hand-free call, eventually
End can first obtain the voice signal of external environment, and calculate the snr value for obtaining the voice signal.Then, terminal can be obtained
Hand-free call processing parameter corresponding with the snr value is taken, and terminal is carried out according to the corresponding hand-free call processing parameter
Set, to complete hand-free call business.Therefore, the embodiment of the present invention can be according to the different noises of external environmental sounds signal
Ratio, is correspondingly configured to complete hand-free call business with different hand-free call processing parameters to terminal, so as to
Improve flexibility when terminal carries out hand-free call.
Brief description of the drawings
Below in conjunction with the accompanying drawings, it is described in detail by the embodiment to the present invention, technical scheme will be made
And its advantage is apparent.
Fig. 1 is the schematic flow sheet of session parameter processing method provided in an embodiment of the present invention.
Fig. 2 is another schematic flow sheet of session parameter processing method provided in an embodiment of the present invention.
Fig. 3 A to Fig. 3 B are the schematic diagram of a scenario of session parameter processing method provided in an embodiment of the present invention.
Fig. 4 is the structural representation of session parameter processing unit provided in an embodiment of the present invention.
Fig. 5 is another structural representation of session parameter processing unit provided in an embodiment of the present invention.
Fig. 6 is the structural representation of mobile terminal provided in an embodiment of the present invention.
Embodiment
It refer to schema, wherein identical element numbers represent identical component, principle of the invention is to implement one
Illustrated in appropriate computing environment.The following description is that, based on the illustrated specific embodiment of the invention, it should not be by
It is considered as the limitation present invention other specific embodiments not detailed herein.
It will be detailed below.
Referring to Fig. 1, Fig. 1 is the schematic flow sheet of session parameter processing method provided in an embodiment of the present invention, flow can
With including：
In step S101, when carrying out hand-free call, voice signal is obtained.
It is understood that the terminal that the executive agent of the embodiment of the present invention can be smart mobile phone or panel computer is set
It is standby.
Such as, terminal is when carrying out hand-free call business, and the mode of operation of its up pickup is fixed, namely terminal
Pickup distance immobilizes.But, terminal is likely to be at more noisy environment, it is also possible to be in when carrying out hand-free call
Relatively quiet environment.If the pickup of terminal is in larger distance, then hands-free logical when being carried out in terminal out of doors more noisy environment
During words, noise in surrounding environment will be arrived by the microphone pickup of terminal, and this will cause the voice signal noise that sends other side to
It is miscellaneous.If the pickup of terminal is in small distance, then when carrying out videoconference using hand-free call in relatively quiet meeting room, compared with
The voice signal of distant location will be difficult to be arrived by microphone pickup, cause other side to hear voice signal.That is, pickup distance
Immobilizing causes terminal can not adapt to the change of environment when carrying out hand-free call, and flexibility is poor.
In the step S101 of the embodiment of the present invention, such as when carrying out hand-free call, terminal can first pass through microphone
Obtain the voice signal of external environment.
In step s 102, the snr value of the voice signal is calculated.
Such as, after the voice signal of external environment is got, terminal can calculate the snr value of the voice signal
(Signal-Noise Ratio, SNR).
It is understood that snr value is bigger, show that voice signal is purer.Therefore, external environment is being got
After voice signal, if the snr value that terminal calculates the obtained voice signal is larger, then it is considered that now terminal
Residing surrounding environment is more quiet.And if terminal to calculate the obtained snr value of the voice signal smaller, then can be with
Think that the surrounding environment residing for now terminal is more noisy.
In one embodiment, terminal can calculate the snr value of voice signal in the following way：
For example, typically having two microphones on mobile terminal, the two microphones can pick up the sound of external environment
Signal (analog signal), then this two-way analog signal can be sent in corresponding analog-digital converter by terminal is converted to accordingly
Data signal, i.e. terminal can obtain two ways of digital signals, for example, data signal A and data signal B.
Then, this two ways of digital signals can be respectively transmitted to digital signal processor (Digital Signal by terminal
Processor, abbreviation DSP) middle fast algorithm (Fast Fourier of the progress based on discrete Fourier transform
Transformation, abbreviation FFT) processing, that is, data signal transformed into frequency-region signal by time-domain signal divided
Analysis.Afterwards, terminal can calculate in the corresponding frequency-region signal of two ways of digital signals all frequencies in 200Hz~4KHz bandwidth respectively
The amplitude size of signal, then the amplitude of correspondence frequency in two ways of digital signals is subtracted each other, obtain two ways of digital signals and own
The amplitude difference of frequency, and calculate the absolute value of these amplitude differences.
For example, the frequency signal of data signal A and data signal B in 200Hz~4KHz bandwidth includes h, i, j, k, l, m
This six frequency signals.Terminal can be calculated first respectively obtains data signal A and data signal B in h, i, j, k, l, m frequency letter
Amplitude size at number, is then subtracted each other this two ways of digital signals in the amplitude for corresponding to frequency, such as with data signal A
The amplitude of h frequency signals and the amplitude of h frequencies signal in data signal B are subtracted each other, and obtain the difference in magnitude at h frequency signals
Value, and take its absolute value.On the amplitude difference at other frequency signals absolute value calculating by that analogy, so as to obtain two
The absolute value of amplitude difference of the railway digital signal at each frequency signal.
Afterwards, terminal can reach the numerical value of absolute value pre- according to the absolute value of the amplitude difference at each frequency signal
The frequency signal for determining absolute value threshold value is selected, such as the absolute value of the amplitude difference at frequency h, i, j, k, which reaches, to be made a reservation for absolutely
To value threshold value.Then, terminal is chosen in two ways of digital signals all the way, such as data signal A.Then, terminal calculates numeral letter
The average value of amplitude at number A intermediate-frequeney points h, i, j, k, for example, X.Average value X can characterize useful signal.Then, terminal
The frequency signal that the absolute value numerical value of amplitude difference is not up into predetermined absolute value threshold value, which is selected, to be come, such as at frequency l, m
The absolute value of amplitude difference is not up to predetermined absolute value threshold value.Then, terminal calculate above-mentioned selection data signal A intermediate-frequeney points l,
The average value of amplitude at m, for example, N.Average value N can characterize noise signal.
Then, terminal can calculate the snr value for obtaining current voice signal according to formula S NR=20lg (X/N).
In step s 103, hand-free call processing parameter corresponding with the snr value is obtained.
In step S104, terminal is configured according to the hand-free call processing parameter, so that user carries out hands-free lead to
Words.
Such as, step S103 and S104 can include：
After the snr value of voice signal is got, terminal can obtain hand-free call corresponding with the snr value
Processing parameter, and the hand-free call business of terminal is configured according to the hand-free call processing parameter, to carry out hand-free call.
For example, terminal can pre-set multiple snr values, and hand-free call corresponding with each snr value processing
Parameter.Such as, hand-free call processing parameter corresponding with snr value A is a, hand-free call processing corresponding with snr value B
Parameter is b, etc..So, when it is A that terminal, which calculates the obtained snr value of external environmental sounds signal, terminal just can be with
Hand-free call business is configured according to hand-free call processing parameter a.When terminal calculates obtained external environmental sounds signal
Snr value when being B, terminal can be just configured according to hand-free call processing parameter b to hand-free call business, etc..
In one embodiment, the noise reduction intensity of the corresponding hand-free call processing parameter of different snr values can not
Together.Such as, can be that snr value is bigger, the noise reduction intensity of its corresponding hand-free call processing parameter is smaller.
It should be noted that the noise reduction intensity of hand-free call processing parameter is bigger, then its corresponding pickup is apart from smaller.Example
Such as, snr value A is more than snr value B, then hand-free call processing parameter a noise reduction intensity can be less than hand-free call processing
Parameter b.Pickup is corresponded to apart from upper, hand-free call processing parameter a pickup distance will be more than hand-free call processing parameter b.
That is, when carrying out hand-free call under relatively quiet environment, can set the noise reduction intensity of terminal is smaller,
So that the pickup of terminal is in larger distance.And when carrying out hand-free call under more noisy environment, can be by the noise reduction of terminal
It is larger that intensity is set, so that the pickup of terminal is in small distance.
In one embodiment, the step of hand-free call processing parameter corresponding with the snr value is obtained in S103 can
With as follows：
Obtain multiple snr values interval, and session parameter corresponding with each snr value interval, snr value interval
Numerical value it is bigger, the noise reduction intensity of corresponding session parameter is smaller；
Determine that the target signal ratio belonging to the snr value of voice signal is interval；
By the interval corresponding session parameter of target signal ratio, it is defined as hand-free call processing corresponding with the snr value
Parameter.
For example, terminal can set four snr value intervals in advance：(0dB,10dB]、(10dB,20dB]、(20dB,
30dB] and more than 30dB.There is corresponding a set of session parameter in each snr value interval.For example, corresponding to (0dB,
10dB] interval session parameter is c, corresponding to (10dB, 20dB] interval session parameter is d, corresponding to (20dB, 30dB] area
Between session parameter be e, corresponding to (0dB, 10dB] interval session parameter is f.Wherein, c, d, e, f noise reduction intensity can be with
Successively decrease successively.For example, session parameter c noise reduction intensity can be 15dB, session parameter d noise reduction intensity can be 10dB, lead to
The noise reduction intensity for talking about parameter e can be 5dB, and session parameter f noise reduction intensity can be 0dB.Pickup is corresponded to apart from upper, works as end
When end carries out hand-free call with session parameter c, d, e, f respectively, the pickup distance of terminal is incremented by successively.
So, after terminal calculates the snr value of current voice signal, terminal can obtain what is pre-set
Snr value interval and correspondence session parameter.Then, terminal can determine that the target signal ratio belonging to snr value is interval,
And by the interval corresponding session parameter of target signal ratio, be defined as corresponding with the snr value of present sound signals hands-free logical
Talk about processing parameter.For example, terminal determine the snr value of current voice signal belong to (20dB, 30dB] it is interval, then eventually
Session parameter e can just be defined as corresponding hand-free call processing parameter by end, and according to session parameter e to hand-free call business
It is configured, to carry out hand-free call.
Therefore, the embodiment of the present invention can be according to the different snr values of external environmental sounds signal, correspondingly with not
Same hand-free call processing parameter is configured to terminal to carry out hand-free call business, hands-free so as to improve terminal progress
Flexibility during call.
From the foregoing, the session parameter processing method that the present embodiment is provided, when carrying out hand-free call, terminal can be first
The voice signal of external environment is obtained, and calculates the snr value for obtaining the voice signal.Then, terminal can be obtained and the letter
The corresponding hand-free call processing parameter of ratio of making an uproar, and terminal is configured according to the corresponding hand-free call processing parameter, with
Complete hand-free call business.Therefore, the embodiment of the present invention can be according to the different snr values of external environmental sounds signal, phase
Ground is answered to be configured with different hand-free call processing parameters to terminal to complete hand-free call business, so as to improve terminal
Carry out flexibility during hand-free call.
Referring to Fig. 2, Fig. 2 is another schematic flow sheet of session parameter processing method provided in an embodiment of the present invention, stream
Journey can include：
In step s 201, when carrying out hand-free call, terminal obtains voice signal.
In step S202, terminal calculates the snr value of the voice signal.
Such as, step S201 and S202 can include：
When carrying out hand-free call, terminal can pick up the voice signal of external environment by microphone.Then, terminal can
To calculate the snr value for the voice signal that microphone is picked up.
In one embodiment, terminal can calculate an external environmental sounds letter every a default time interval
Number snr value.For example, terminal can calculate the external environmental sounds letter that a microphone is picked up every 5 seconds or 6 seconds
Number snr value.
In step S203, terminal obtains default first parameter and default second parameter, the noise reduction of default first parameter
Intensity is less than default second parameter.
Such as, after calculating obtains the snr value of external environmental sounds signal, terminal can obtain default first ginseng
Number and default second parameter, the noise reduction intensity of wherein default first parameter are less than default second parameter.It should be noted that
Noise reduction intensity is bigger, then its corresponding pickup distance can be smaller.Therefore, compared to default second parameter, in terminal according to default
When first parameter carries out hand-free call, the microphone of terminal can pick up the external environmental sounds signal of further distance.
In step S204, when detecting the snr value more than or equal to predetermined threshold value, this is preset first by terminal
Parameter is defined as corresponding hand-free call processing parameter；When detecting the snr value less than predetermined threshold value, terminal is pre- by this
If the second parameter is defined as corresponding hand-free call processing parameter.
In step S205, the hand-free call processing parameter that terminal is determined according to this is set to hand-free call business
Put, to carry out hand-free call.
Such as, step S204 and S205 can include：
After default first parameter and default second parameter is got, terminal can be detected to be calculated in step S202
To the snr value of external environmental sounds signal be greater than or equal to predetermined threshold value, be also less than predetermined threshold value.
When terminal detects the snr value more than or equal to predetermined threshold value, it is believed that the environment that terminal is presently in
For a quiet environment of comparison.In this case, default first parameter can be defined as and the snr value pair by terminal
The hand-free call processing parameter answered, and according to the hand-free call processing parameter (presetting the first parameter) to the hand-free call of terminal
Business is configured, so that user carries out hand-free call.
When terminal detects the snr value less than predetermined threshold value, it is believed that the environment that terminal is presently in is one
Compare noisy environment.In this case, default second parameter can be defined as exempt from corresponding with the snr value by terminal
Call processing parameter is put forward, and the hand-free call business of terminal is entered according to the hand-free call processing parameter (presetting the second parameter)
Row is set, so that user carries out hand-free call.
That is, terminal can pre-set two sets of parameters, the first parameter and default second parameter are respectively preset, its
In preset the pickup distance of the first parameter and be more than default second parameter.When judging that terminal is in relatively more quiet environment,
Terminal can be configured according to default first parameter to hand-free call business, to carry out hand-free call.When judging end
When in relatively more noisy environment, terminal can be configured according to default second parameter to hand-free call business, to be exempted from
Propose call.
In step S206, terminal obtains the multiple snr values for calculating and obtaining, and according to the order for calculating time order and function,
The difference of the adjacent each two snr value of order is calculated successively, obtains multiple differences.
In step S207, terminal counts the difference number that numerical value in the plurality of difference reaches preset difference value threshold value.
In step S208, when detecting the difference number and reaching predetermined number, terminal is according to default second parameter pair
Hand-free call business is configured, and in preset duration, keeps the terminal to carry out hand-free call according to default second parameter.
Such as, step S206, S207 and S208 can include：
For example, terminal calculated the snr value for the voice signal that a microphone is picked up every 5 seconds.In such case
Under, terminal can obtain the multiple snr values for calculating and obtaining.Obtained for example, terminal can obtain to calculate in preset time range
Multiple snr values.For example, terminal can obtain all snr values for calculating and obtaining in nearest 3 minutes, i.e., 36 altogether
Snr value.
Then, terminal can calculate the adjacent each two snr value of order successively according to the order for calculating time order and function
Difference, obtain multiple differences.For example, terminal, which has altogether to calculate, obtains 35 differences on snr value.
Afterwards, terminal can be counted in this 35 differences, and numerical values recited reaches the difference number of preset difference value threshold value.
When detecting the difference number and reaching predetermined number, can with triggering terminal according to default second parameter to hands-free logical
Call business is configured.For example, predetermined number is 30.So when in 35 differences, no less than the numerical values recited of 30 differences
Preset difference value threshold value is reached, then hand-free call business can be configured according to default second parameter with triggering terminal.
It should be noted that according to the order for calculating time order and function, the difference of adjacent each two snr value can recognize
To be the fluctuating range of the two snr values.If difference reaches preset difference value threshold value in numerical values recited, it is considered that
Fluctuating range between two neighboring snr value is larger.
35 differences that above-mentioned calculating is obtained may be considered the continuous fluctuation width of the snr value of voice signal in 3 minutes
Degree.If numerical value reaches that the difference number of preset difference value threshold value has reached predetermined number in this 35 differences, then it is considered that
The snr value of voice signal is continuously greatly fluctuated in this 3 minutes.
For example, user out of doors walking when, surrounding environment change is larger, when and comparison is quiet, when and comparison is noisy, cause
The snr value for the voice signal that microphone is picked up continuously is fluctuated by a relatively large margin.In this case, terminal can be according to pre-
If the second parameter is configured to hand-free call business, that is, according to pickup apart from smaller parameter come to hand-free call industry
Business is configured.
Meanwhile, terminal can also keep terminal according to default second parameter to carry out in preset duration (such as 5 minutes)
Hand-free call business.That is, in this section of preset duration (such as 5 minutes), terminal is carried out according to default second parameter
Hand-free call business, without being configured according to default first parameter to hand-free call business.
It is understood that by the case where the continuous fluctuating range of the snr value of voice signal is larger, according to pre-
If the second parameter is configured to hand-free call business, and keeps terminal to be carried out in preset duration according to default second parameter
This mode of hand-free call, can avoid terminal from excessively frequently being cut between default first parameter and default second parameter
Change, this can mitigate the burden that terminal carries out session parameter switching.
Refer to the field that Fig. 3 A and Fig. 3 B, Fig. 3 A and Fig. 3 B are the processing methods of session parameter provided in an embodiment of the present invention
Scape schematic diagram.
For example, at the T1 moment, user clicks the hand-free call button on terminal screen after phone is connected, and carries out
Hand-free call, as shown in Figure 3A.
Now, terminal can pick up external environment by being arranged at two the microphones M1 and M2 on terminal top and bottom
Voice signal, and the first snr value of the voice signal is calculated, as shown in Figure 3 B.
After calculating obtains the snr value of the voice signal, terminal can obtain the multiple snr values pre-set
Interval, and session parameter corresponding with each snr value interval.For example, terminal gets four snr value intervals：(0dB,
10dB], (10dB, 20dB], (20dB, 30dB] and more than 30dB.There is corresponding a set of call in each snr value interval
Parameter.For example, corresponding to (0dB, 10dB] interval session parameter is c, corresponding to (10dB, 20dB] interval session parameter is
D, corresponding to (20dB, 30dB] interval session parameter is e, corresponding to (0dB, 10dB] interval session parameter is f.Wherein,
C, d, e, f noise reduction intensity are successively decreased successively.For example, session parameter c noise reduction intensity can be 15dB, session parameter d noise reduction
Intensity can be 10dB, and session parameter e noise reduction intensity can be 5dB, and session parameter f noise reduction intensity can be 0dB.Correspondence
To pickup apart from upper, when terminal carries out hand-free call with session parameter c, d, e, f respectively, the pickup distance of terminal is to pass successively
Increase.
Then, terminal can determine that the target signal ratio belonging to first snr value is interval.For example, terminal is determined
First snr value belong to (20dB, 30dB] it is interval, then session parameter e can just be defined as corresponding hands-free logical by terminal
Processing parameter is talked about, and hand-free call business is configured according to session parameter e, to carry out hand-free call.
During hand-free call is carried out, terminal can calculate the snr value of a voice signal every 5 seconds, and examine
Survey whether the interval of the snr value belonging to voice signal changes.
For example, after the T1 moment T2 moment of five minutes, terminal, which is calculated, obtains second letter for corresponding to the T2 moment
Make an uproar ratio, and detect the second snr value belong to (10dB, 20dB] it is interval, then parameter d can be defined as correspondence by terminal
Hand-free call processing parameter, and hand-free call business is configured according to session parameter d, to carry out hand-free call.That is,
Terminal is now switched to parameter d by parameter e, hand-free call is carried out.
Terminal according to it is interval (0dB, 10dB], (10dB, 20dB] and (20dB, 30dB] corresponding session parameter carries out
During hand-free call, it is believed that terminal is in more noisy environment, and now terminal can also open the drop of two microphones
Make an uproar function.And when the snr value for the voice signal that terminal is picked up reaches more than 30dB, terminal is except can be according to call
Parameter f is carried out outside hand-free call, can also without using two microphones decrease of noise functions, while by automatic growth control
(Automatic Gain Control, AGC) lifts 10dB, namely when terminal carries out hand-free call in relatively quiet environment
When, by the way that automatic growth control gain is lifted into 10dB, microphone can be made to pick up the voice signal of further distance.
Referring to Fig. 4, Fig. 4 is the structural representation of session parameter processing unit provided in an embodiment of the present invention.Call ginseng
Number processing unit 300 can include：First acquisition module 301, computing module 302, the second acquisition module 303, and mould is set
Block 304.
First acquisition module 301, for when carrying out hand-free call, obtaining voice signal.
Computing module 302, the snr value for calculating the voice signal.
Such as, when carrying out hand-free call, the first acquisition module 301 of terminal can first pass through microphone and obtain extraneous ring
The voice signal in border.After the first acquisition module 301 gets the voice signal of external environment, computing module 302 can be calculated
The snr value of the voice signal.
It is understood that snr value is bigger, show that voice signal is purer.Therefore, external environment is being got
After voice signal, if the snr value that computing module 302 calculates the obtained voice signal is larger, then it is considered that this
When terminal residing for surrounding environment it is more quiet.And if computing module 302 calculates the snr value of the obtained voice signal
It is smaller, then it is considered that the surrounding environment now residing for terminal is more noisy.
In one embodiment, computing module 302 can calculate the snr value of voice signal in the following way：
For example, typically having two microphones on mobile terminal, the two microphones can pick up the sound of external environment
Signal (analog signal), then computing module 302 this two-way analog signal can be sent to corresponding analog-digital converter transfer
Two ways of digital signals can be obtained by being changed to corresponding data signal, i.e. computing module 302, and for example, data signal A and numeral are believed
Number B.
Then, this two ways of digital signals can be respectively transmitted to digital signal processor (Digital by computing module 302
Signal Processor, abbreviation DSP) middle fast algorithm (Fast Fourier of the progress based on discrete Fourier transform
Transformation, abbreviation FFT) processing, that is, data signal transformed into frequency-region signal by time-domain signal divided
Analysis.Afterwards, computing module 302 can be calculated in the corresponding frequency-region signal of two ways of digital signals in 200Hz~4KHz bandwidth respectively
The amplitude size of all frequency signals, then the amplitude of correspondence frequency in two ways of digital signals is subtracted each other, obtain two railway digitals
The amplitude difference of all frequencies of signal, and calculate the absolute value of these amplitude differences.
For example, the frequency signal of data signal A and data signal B in 200Hz~4KHz bandwidth includes h, i, j, k, l, m
This six frequency signals.Terminal can be calculated first respectively obtains data signal A and data signal B in h, i, j, k, l, m frequency letter
Amplitude size at number, is then subtracted each other this two ways of digital signals in the amplitude for corresponding to frequency, such as with data signal A
The amplitude of h frequency signals and the amplitude of h frequencies signal in data signal B are subtracted each other, and obtain the difference in magnitude at h frequency signals
Value, and take its absolute value.On the amplitude difference at other frequency signals absolute value calculating by that analogy, so as to obtain two
The absolute value of amplitude difference of the railway digital signal at each frequency signal.
Afterwards, terminal can reach the numerical value of absolute value pre- according to the absolute value of the amplitude difference at each frequency signal
The frequency signal for determining absolute value threshold value is selected, such as the absolute value of the amplitude difference at frequency h, i, j, k, which reaches, to be made a reservation for absolutely
To value threshold value.Then, terminal is chosen in two ways of digital signals all the way, such as data signal A.Then, terminal calculates numeral letter
The average value of amplitude at number A intermediate-frequeney points h, i, j, k, for example, X.Average value X can characterize useful signal.Then, terminal
The frequency signal that the absolute value numerical value of amplitude difference is not up into predetermined absolute value threshold value, which is selected, to be come, such as at frequency l, m
The absolute value of amplitude difference is not up to predetermined absolute value threshold value.Then, terminal calculate above-mentioned selection data signal A intermediate-frequeney points l,
The average value of amplitude at m, for example, N.Average value N can characterize noise signal.
Then, computing module 302 can calculate the letter for obtaining current voice signal according to formula S NR=20lg (X/N)
Make an uproar ratio.
Second acquisition module 303, for obtaining hand-free call processing parameter corresponding with the snr value.
Setup module 304, for being configured according to the hand-free call processing parameter to terminal, so that user is exempted from
Propose call.
Such as, after computing module 302 calculates and obtains the snr value of voice signal, the second acquisition module 303 can be with
Hand-free call processing parameter corresponding with the snr value is obtained, and by setup module 304 according to the hand-free call processing parameter
Hand-free call business to terminal is configured, to carry out hand-free call.
For example, terminal can pre-set multiple snr values, and hand-free call corresponding with each snr value processing
Parameter.Such as, hand-free call processing parameter corresponding with snr value A is a, hand-free call processing corresponding with snr value B
Parameter is b, etc..So, when the snr value that computing module 302 calculates obtained external environmental sounds signal is A, set
Module 304 can be just configured according to hand-free call processing parameter a to hand-free call business.When computing module 302 is calculated
When the snr value of the external environmental sounds signal arrived is B, setup module 304 just can be b pairs according to hand-free call processing parameter
Hand-free call business is configured, etc..
It is understood that the embodiment of the present invention can be according to the different snr values of external environmental sounds signal, phase
Ground is answered to be configured with different hand-free call processing parameters to terminal to carry out hand-free call business, so as to improve terminal
Carry out flexibility during hand-free call.
In one embodiment, the noise reduction intensity of the corresponding hand-free call processing parameter of different snr values can not
Together.Such as, can be that snr value is bigger, the noise reduction intensity of its corresponding hand-free call processing parameter is smaller.
It should be noted that the noise reduction intensity of hand-free call processing parameter is bigger, then its corresponding pickup is apart from smaller.Example
Such as, snr value A is more than snr value B, then hand-free call processing parameter a noise reduction intensity can be less than hand-free call processing
Parameter b.Pickup is corresponded to apart from upper, hand-free call processing parameter a pickup distance will be more than hand-free call processing parameter b.
That is, when carrying out hand-free call under relatively quiet environment, can set the noise reduction intensity of terminal is smaller,
So that the pickup of terminal is in larger distance.And when carrying out hand-free call under more noisy environment, can be by the noise reduction of terminal
It is larger that intensity is set, so that the pickup of terminal is in small distance.
In one embodiment, the second acquisition module 303 can be used for：
Default first parameter and default second parameter are obtained, the noise reduction intensity for presetting the first parameter is less than described default
Second parameter；
When detecting the snr value more than or equal to predetermined threshold value, default first parameter is defined as correspondence
Hand-free call processing parameter；
When detecting the snr value less than predetermined threshold value, default second parameter is defined as corresponding hands-free
Call processing parameter.
Such as, after the calculating of computing module 302 obtains the snr value of external environmental sounds signal, the second acquisition module
303 can obtain default first parameter and default second parameter, and the noise reduction intensity of wherein default first parameter is default less than this
Second parameter.It should be noted that noise reduction intensity is bigger, then its corresponding pickup distance can be smaller.Therefore, compared to default the
Two parameters, when terminal carries out hand-free call according to default first parameter, the microphone of terminal can pick up further distance
External environmental sounds signal.
After default first parameter and default second parameter is got, the second acquisition module 303 can detect calculating mould
The snr value that block 302 calculates obtained external environmental sounds signal is greater than or equal to predetermined threshold value, is also less than default threshold
Value.
When detecting the snr value more than or equal to predetermined threshold value, it is believed that the environment that terminal is presently in is one
The individual quiet environment of comparison.In this case, default first parameter can be defined as and the noise by the second acquisition module 303
The corresponding hand-free call processing parameter of ratio, and (preset the first ginseng according to the hand-free call processing parameter by setup module 304
Number) the hand-free call business of terminal is configured, so that user carries out hand-free call.
When terminal detects the snr value less than predetermined threshold value, it is believed that the environment that terminal is presently in is one
Compare noisy environment.In this case, default second parameter can be defined as and the signal to noise ratio by the second acquisition module 303
It is worth corresponding hand-free call processing parameter, and (the second ginseng is preset according to the hand-free call processing parameter by setup module 304
Number) the hand-free call business of terminal is configured, so that user carries out hand-free call.
That is, terminal can pre-set two sets of parameters, the first parameter and default second parameter are respectively preset, its
In preset the pickup distance of the first parameter and be more than default second parameter.When judging that terminal is in relatively more quiet environment,
Terminal can be configured according to default first parameter to hand-free call business, to carry out hand-free call.When judging end
When in relatively more noisy environment, terminal can be configured according to default second parameter to hand-free call business, to be exempted from
Propose call.
In another embodiment, the second acquisition module 303 can be used for：
Obtain multiple snr values interval, and with the interval corresponding session parameter of each snr value, snr value
Interval numerical value is bigger, and the noise reduction intensity of corresponding session parameter is smaller；
Determine that the target signal ratio belonging to the snr value of the voice signal is interval；
By the interval corresponding session parameter of the target signal ratio, it is defined as corresponding with the snr value hands-free logical
Talk about processing parameter.
Such as, terminal can set four snr value intervals in advance：(0dB,10dB]、(10dB,20dB]、(20dB,
30dB] and more than 30dB.There is corresponding a set of session parameter in each snr value interval.For example, corresponding to (0dB,
10dB] interval session parameter is c, corresponding to (10dB, 20dB] interval session parameter is d, corresponding to (20dB, 30dB] area
Between session parameter be e, corresponding to (0dB, 10dB] interval session parameter is f.Wherein, c, d, e, f noise reduction intensity can be with
Successively decrease successively.For example, session parameter c noise reduction intensity can be 15dB, session parameter d noise reduction intensity can be 10dB, lead to
The noise reduction intensity for talking about parameter e can be 5dB, and session parameter f noise reduction intensity can be 0dB.Pickup is corresponded to apart from upper, works as end
When end carries out hand-free call with session parameter c, d, e, f respectively, the pickup distance of terminal is incremented by successively.
So, after computing module 302 calculates the snr value of current voice signal, the second acquisition module 303
The snr value interval pre-set and correspondence session parameter can be obtained.Then, the second acquisition module 303 can determine letter
The target signal ratio belonging to ratio of making an uproar is interval, and by the interval corresponding session parameter of target signal ratio, be defined as with currently
The corresponding hand-free call processing parameter of snr value of voice signal.For example, the second acquisition module 303 determines current sound
The snr value of signal belong to (20dB, 30dB] it is interval, then session parameter e can just be defined as by the second acquisition module 303
Corresponding hand-free call processing parameter.Then, hand-free call business is configured according to session parameter e by setup module 304,
To carry out hand-free call.
Also referring to Fig. 5, Fig. 5 is another structural representation of session parameter processing unit provided in an embodiment of the present invention
Figure.In one embodiment, session parameter processing unit 300 can also include：Detection module 305 and holding module 306.
Detection module 305, obtained multiple snr values are calculated for obtaining the terminal, and according to calculating time order and function
Order, the difference of the adjacent each two snr value of order is calculated successively, multiple differences are obtained；Count in the multiple difference
Numerical value reaches the difference number of preset difference value threshold value；When detecting the difference number and reaching predetermined number, according to described pre-
If the second parameter is configured to the hand-free call of the terminal.
Such as, computing module 302 calculated the snr value for the voice signal that a microphone is picked up every 5 seconds.
In this case, detection module 305 can obtain the multiple snr values for calculating and obtaining.For example, detection module 305 can be obtained
Obtained multiple snr values are calculated in preset time range.Calculated for example, detection module 305 can be obtained in nearest 3 minutes
Obtained all snr values, i.e. 36 snr values altogether.
It is then detected that module 305 can calculate the adjacent each two letter of order successively according to the order for calculating time order and function
Make an uproar the difference of ratio, obtain multiple differences.For example, detection module 305, which can be calculated altogether, obtains 35 on snr value
Difference.
Afterwards, detection module 305 can be counted in this 35 differences, and numerical values recited reaches the difference of preset difference value threshold value
Number.
When detecting the difference number and reaching predetermined number, detection module 305 can be with triggering terminal according to default second
Parameter is configured to hand-free call business.For example, predetermined number is 30.So when in 35 differences, no less than 30 differences
The numerical values recited of value has reached preset difference value threshold value, then can with triggering terminal according to default second parameter to hand-free call business
It is configured.
It should be noted that according to the order for calculating time order and function, the difference of adjacent each two snr value can recognize
To be the fluctuating range of the two snr values.If difference reaches preset difference value threshold value in numerical values recited, it is considered that
Fluctuating range between two neighboring snr value is larger.
35 differences that above-mentioned calculating is obtained may be considered the continuous fluctuation width of the snr value of voice signal in 3 minutes
Degree.If numerical value reaches that the difference number of preset difference value threshold value has reached predetermined number in this 35 differences, then it is considered that
The snr value of voice signal is continuously greatly fluctuated in this 3 minutes.
For example, user out of doors walking when, surrounding environment change is larger, when and comparison is quiet, when and comparison is noisy, cause
The snr value for the voice signal that microphone is picked up continuously is fluctuated by a relatively large margin.In this case, terminal can be according to pre-
If the second parameter is configured to hand-free call business, that is, according to pickup apart from smaller parameter come to hand-free call industry
Business is configured.
Module 306 is kept, it is hands-free in preset duration, keeping the terminal to be carried out according to default second parameter
Call.
Such as, after detection module 305 is configured according to default second parameter to the hand-free call business of terminal, protect
Terminal can also be kept according to default second parameter to carry out hand-free call in preset duration (such as 5 minutes) by holding module 306
Business.That is, in this section of preset duration (such as 5 minutes), terminal is to carry out hand-free call according to default second parameter
Business, without being configured according to default first parameter to hand-free call business.
It is understood that by the case where the continuous fluctuating range of the snr value of voice signal is larger, according to pre-
If the second parameter is configured to hand-free call business, and keeps terminal to be carried out in preset duration according to default second parameter
This mode of hand-free call, can avoid terminal from excessively frequently being cut between default first parameter and default second parameter
Change, this can mitigate the burden that terminal carries out session parameter switching.
The embodiment of the present invention also provides a kind of electronic equipment, including memory, processor, and is stored in the memory
In and the computer program that can be run in the processor, can realize this during computer program described in the computing device
Step in the session parameter processing method that inventive embodiments are provided.
For example, electronic equipment provided in an embodiment of the present invention can be such as panel computer, smart mobile phone mobile terminal.Please
Refering to Fig. 6, Fig. 6 is mobile terminal structure schematic diagram provided in an embodiment of the present invention.The mobile terminal 500 can include radio frequency
(RF, Radio Frequency) circuit 501, the memory for including one or more computer-readable recording mediums
502nd, input block 503, display unit 504, voicefrequency circuit 505, include one or the processing of more than one processing core
The grade part of device 506.It will be understood by those skilled in the art that the mobile terminal structure shown in Fig. 6 is not constituted to mobile terminal
Restriction, can include than illustrating more or less parts, either combine some parts or different parts arrangement.
Radio circuit 501 can be used for receive and send messages, or in communication process signal reception and transmission, especially, by base station
Downlink information receive after, transfer to one or more than one processor 508 handled；In addition, being sent up data are related to
To base station.
Memory 502 can be used for storage application program and data.Include and can hold in the application program that memory 502 is stored
Line code.Application program can constitute various functions module.Processor 506 is stored in the application journey of memory 502 by operation
Sequence, so as to perform various function application and data processing.
Input block 503 can be used for numeral, character information or the user's characteristic information (such as fingerprint) for receiving input, and
Keyboard, mouse, action bars, optics or the trace ball signal relevant with user's setting and function control is produced to input.
Display unit 504 can be used for display by the information of user input or be supplied to the information and mobile terminal of user
Various graphical user interface, these graphical user interface can be made up of figure, text, icon, video and its any combination.
Display unit 504 may include display panel.
Voicefrequency circuit 505 can provide the COBBAIF between user and mobile terminal by loudspeaker, microphone.Audio-frequency electric
The voice data received can be converted into electric signal by road 506, be transferred to loudspeaker, and it is defeated to be converted to voice signal by loudspeaker
Go out；On the other hand, the voice signal of collection is converted to electric signal by microphone, and audio is converted to after being received by voicefrequency circuit 506
Data, then after voice data output processor 506 is handled, such as another mobile terminal is sent to through radio circuit 501.
Processor 506 is the control centre of mobile terminal, utilizes each of various interfaces and the whole mobile terminal of connection
Individual part, by operation or performs and is stored in application program in memory 502, and calls and be stored in memory 502
Data, perform the various functions and processing data of mobile terminal, so as to carry out integral monitoring to mobile terminal.
Although not shown in Fig. 6, mobile terminal can also include camera, bluetooth module etc., will not be repeated here.
Specifically in the present embodiment, processor 506 in mobile terminal can according to following instruction, by one or one with
On the corresponding executable code of process of application program be loaded into memory 502, and by processor 506 is stored in run
Application program in memory 502, so as to realize various functions：
When carrying out hand-free call, voice signal is obtained；Calculate the snr value of the voice signal；Obtain and the letter
The corresponding hand-free call processing parameter of ratio of making an uproar；Terminal is configured according to the hand-free call processing parameter, so that user
Carry out hand-free call.
Processor 506 can be wrapped when performing acquisition hand-free call processing parameter corresponding with the snr value
Include：Default first parameter and default second parameter are obtained, the noise reduction intensity of default first parameter is less than described default second
Parameter；When detecting the snr value more than or equal to predetermined threshold value, default first parameter is defined as corresponding
Hand-free call processing parameter；When detecting the snr value less than predetermined threshold value, default second parameter is defined as
Corresponding hand-free call processing parameter.
Processor 506 can also carry out following steps：Obtain the terminal and calculate obtained multiple snr values, and according to
The order of time order and function is calculated, the difference of the adjacent each two snr value of order is calculated successively, multiple differences are obtained；Statistics institute
State the difference number that numerical value in multiple differences reaches preset difference value threshold value；Predetermined number is reached when detecting the difference number
When, the hand-free call business of the terminal is configured according to default second parameter.
Processor 506 can also carry out following steps：In preset duration, the terminal is kept according to described default second
Parameter carries out hand-free call.
In another embodiment, processor 506 is corresponding with the snr value hands-free logical in the execution acquisition
It can include during words processing parameter：Obtain multiple snr values interval, and with the interval corresponding call of each snr value
Parameter, the interval numerical value of snr value is bigger, and the noise reduction intensity of corresponding session parameter is smaller；Determine the voice signal
Target signal ratio belonging to snr value is interval；By the interval corresponding session parameter of the target signal ratio, be defined as with
The corresponding hand-free call processing parameter of the snr value.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, the detailed description above with respect to session parameter processing method is may refer to, here is omitted.
The session parameter processing unit provided in an embodiment of the present invention and the session parameter processing side in foregoing embodiments
It is owned by France in same design, can run in the session parameter processing method embodiment and carry in the session parameter processing unit
The either method of confession, it implements process and refers to the session parameter processing method embodiment, and here is omitted.
It should be noted that for session parameter processing method described in the embodiment of the present invention, this area common test people
Member is appreciated that to realize all or part of flow of session parameter processing method described in the embodiment of the present invention, can be by calculating
Machine program controls the hardware of correlation to complete, and the computer program can be stored in a computer read/write memory medium,
Such as storage in memory, and by least one computing device, session parameter processing as described is may include in the process of implementation
The flow of the embodiment of method.Wherein, described storage medium can be magnetic disc, CD, read-only storage (ROM, Read Only
Memory), random access memory (RAM, Random Access Memory) etc..
For the session parameter processing unit of the embodiment of the present invention, its each functional module can be integrated at one
Reason chip in or modules be individually physically present, can also two or more modules be integrated in a module
In.Above-mentioned integrated module can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.Institute
If stating integrated module to realize and as independent production marketing or in use, can also deposit using in the form of software function module
Storage is in a computer read/write memory medium, and the storage medium is for example read-only storage, disk or CD etc..
A kind of session parameter processing method, device and the electronic equipment provided above the embodiment of the present invention is carried out
It is discussed in detail, specific case used herein is set forth to the principle and embodiment of the present invention, above example
Illustrate that being only intended to help understands the method for the present invention and its core concept；Simultaneously for those skilled in the art, according to this
The thought of invention, be will change in specific embodiments and applications, in summary, and this specification content should not
It is interpreted as limitation of the present invention.
Claims (11)
1. a kind of session parameter processing method, it is characterised in that methods described includes：
When carrying out hand-free call, voice signal is obtained；
Calculate the snr value of the voice signal；
Obtain hand-free call processing parameter corresponding with the snr value；
Terminal is configured according to the hand-free call processing parameter, so that user carries out hand-free call.
2. session parameter processing method according to claim 1, it is characterised in that the acquisition and the snr value pair
The hand-free call processing parameter answered, including：
Default first parameter and default second parameter are obtained, the noise reduction intensity of default first parameter is less than described default second
Parameter；
When detecting the snr value more than or equal to predetermined threshold value, default first parameter is defined as corresponding exempt from
Put forward call processing parameter；
When detecting the snr value less than predetermined threshold value, default second parameter is defined as corresponding hand-free call
Processing parameter.
3. session parameter processing method according to claim 2, it is characterised in that methods described also includes：
Obtain the terminal and calculate obtained multiple snr values, and according to the order for calculating time order and function, order is calculated successively
The difference of adjacent each two snr value, obtains multiple differences；
Count the difference number that numerical value in the multiple difference reaches preset difference value threshold value；
When detecting the difference number and reaching predetermined number, according to default second parameter to the hands-free logical of the terminal
Call business is configured.
4. session parameter processing method according to claim 3, it is characterised in that according to default second parameter pair
After the step of hand-free call business of the terminal is configured, also include：
In preset duration, the terminal is kept to carry out hand-free call according to default second parameter.
5. session parameter processing method according to claim 1, it is characterised in that the acquisition and the snr value pair
The hand-free call processing parameter answered, including：
Obtain multiple snr values interval, and with the interval corresponding session parameter of each snr value, snr value is interval
Numerical value it is bigger, the noise reduction intensity of corresponding session parameter is smaller；
Determine that the target signal ratio belonging to the snr value of the voice signal is interval；
It is defined as the interval corresponding session parameter of the target signal ratio at hand-free call corresponding with the snr value
Manage parameter.
6. a kind of session parameter processing unit, it is characterised in that described device includes：
First acquisition module, for when carrying out hand-free call, obtaining voice signal；
Computing module, the snr value for calculating the voice signal；
Second acquisition module, for obtaining hand-free call processing parameter corresponding with the snr value；
Setup module, for being configured according to the hand-free call processing parameter to terminal, so that user carries out hand-free call.
7. session parameter processing unit according to claim 6, it is characterised in that second acquisition module is used for：
Default first parameter and default second parameter are obtained, the noise reduction intensity of default first parameter is less than described default second
Parameter；
When detecting the snr value more than or equal to predetermined threshold value, default first parameter is defined as corresponding exempt from
Put forward call processing parameter；
When detecting the snr value less than predetermined threshold value, default second parameter is defined as corresponding hand-free call
Processing parameter.
8. session parameter processing unit according to claim 7, it is characterised in that described device also includes：Detection module,
For
Obtain the terminal and calculate obtained multiple snr values, and according to the order for calculating time order and function, order is calculated successively
The difference of adjacent each two snr value, obtains multiple differences；
Count the difference number that numerical value in the multiple difference reaches preset difference value threshold value；
When detecting the difference number and reaching predetermined number, according to default second parameter to the hands-free logical of the terminal
Words are configured.
9. session parameter processing unit according to claim 8, it is characterised in that described device also includes：
Module is kept, hand-free call is carried out in preset duration, keeping the terminal according to default second parameter.
10. session parameter processing unit according to claim 6, it is characterised in that second acquisition module is used for：
Obtain multiple snr values interval, and with the interval corresponding session parameter of each snr value, snr value is interval
Numerical value it is bigger, the noise reduction intensity of corresponding session parameter is smaller；
Determine that the target signal ratio belonging to the snr value of the voice signal is interval；
It is defined as the interval corresponding session parameter of the target signal ratio at hand-free call corresponding with the snr value
Manage parameter.
11. a kind of electronic equipment, including memory, processor, and it is stored in the memory and can be in the processor
The computer program of middle operation, it is characterised in that realize claim 1 to 5 during computer program described in the computing device
The step in session parameter processing method described in middle any one.
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