CN109104669A - A kind of sound quality modification method, system and the earphone of earphone - Google Patents
A kind of sound quality modification method, system and the earphone of earphone Download PDFInfo
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- CN109104669A CN109104669A CN201810921957.8A CN201810921957A CN109104669A CN 109104669 A CN109104669 A CN 109104669A CN 201810921957 A CN201810921957 A CN 201810921957A CN 109104669 A CN109104669 A CN 109104669A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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Abstract
The invention discloses a kind of sound quality modification methods of earphone, the present invention is in view of the voice signal that the voice signal in ante-chamber is that human ear is heard, the gap between the voice signal ideal voice signal corresponding with the audio signal can be known according to the audio signal of the voice signal and the upper amendment period for generating the voice signal, audio signal in current amendment period can be adjusted based on this, to correct the voice signal that the audio signal based on the compensated current amendment period generates in ante-chamber, realize the amendment to earphone sound quality, it reduces or even avoids earphone and wear the bad influence to sound quality, improve user's listening experience.The invention also discloses the sound quality update the systems and earphone of a kind of earphone, have such as the identical beneficial effect of the above method.The present invention solves the problems, such as that the earphone sound quality that caused user hears when cannot correctly be worn is impaired in the prior art.
Description
Technical field
The present invention relates to sound processing techniques fields, more particularly to sound quality modification method, system and the ear of a kind of earphone
Machine.
Background technique
User usually listens to audio by wearing earphone, and whether earphone, which is worn, is related to whether is sound quality that user hears
It is intact, and then affect the audibility of audio.It specifically, may if there are gaps between earphone and user's ear
The part bass in the sound that loudspeaker issue in earphone ante-chamber is caused to be missed from gap, in the audio heard so as to cause user
Bass it is few very much.If earphone is worn askew, changing for the Hi-Mid in the sound that loudspeaker in ante-chamber issue may result in
Become, affects the Hi-Mid audibility of audio.As it can be seen that earphone may result in user and listen when cannot correctly be worn
The sound quality arrived is impaired, affects the listening experience of user.
Summary of the invention
The object of the present invention is to provide sound quality modification method, system and the earphones of a kind of earphone, realize to earphone sound quality
Amendment, reduce and even avoid earphone and wear the bad influence to sound quality, improve user's listening experience.
In order to solve the above technical problems, the present invention provides a kind of sound quality modification methods of earphone, comprising:
Obtained the voice signal that audio signal in the ante-chamber of earphone, based on a upper amendment period generates；
According to the audio signal in a upper amendment period and the voice signal to the current audio signal for correcting the period
It is adjusted, to correct the voice signal in ante-chamber.
Preferably, the audio signal and the voice signal according to the upper amendment period is to the current amendment period
Audio signal be adjusted, to correct the voice signal in ante-chamber, comprising:
Correction amount was determined according to the audio signal in a upper amendment period and the voice signal；
Wherein, correction amountS is the audio signal, X1For the voice signal, F is the ear
Machine was in ideal sound under wearing, in the loudspeaker to the ante-chamber for obtaining earphone of the earphone, based on a upper amendment period
The transmission function of first voice collection device of the voice signal that frequency signal generates；
The correction amount is superimposed to the audio signal in current amendment period, to correct the voice signal in ante-chamber.
Preferably, further includes:
Obtain the environmental sound signal of the outside of the earphone；
Then the audio signal and the voice signal according to the upper amendment period is to the current sound for correcting the period
Frequency signal is adjusted, to correct the voice signal in ante-chamber, comprising:
It is true according to the audio signal in a upper amendment period for the earphone, the voice signal and the environmental sound signal
Periodical repair positive quantity；
Wherein, correction amountX2For the environmental sound signal, F21For for obtaining
Take the second sound acquisition device of the environmental sound signal of the outside of the earphone to the transmitting of first voice collection device
Function；
The correction amount is superimposed to the audio signal in current amendment period, to correct the voice signal in ante-chamber.
Preferably, the gain of W is not more than gain threshold, and the gain threshold is so that the modified voice signal is undistorted
It is set for constraint condition.
Preferably, further includes:
Carry out interruption deterministic process, wherein the interruption deterministic process includes:
When calculating separately the gain for limiting W, the voice signal in the first calculating cycle is in first frequency value to second
The first lower-frequency envelope energy between frequency values and voice signal when not limiting the gain of W, in the first calculating cycle exist
First frequency value is to the second lower-frequency envelope energy between second frequency value；
Judge that the second lower-frequency envelope energy subtracts whether the difference that the first lower-frequency envelope energy obtains is greater than
One preset value if it is, determining that the earphone is in non-wearing state, and controls the loudspeaker and stops working；Otherwise, it is determined that
The earphone is in wearing state；First preset value is equal to attenuation and the gain threshold when earphone is removed
Difference.
Preferably, after controlling the control loudspeaker and stopping working, further includes:
Into connection deterministic process, the connection deterministic process includes:
The voice signal calculated in the second calculating cycle is high to first between the 4th frequency values in third frequency values
Frequency envelope energy；
The environmental sound signal in second calculating cycle is calculated in the third frequency values to the 4th frequency
The second high-frequency envelope energy between rate value；
Judge that the second high-frequency envelope energy subtracts whether the difference that the first high-frequency envelope energy obtains is greater than
Two preset values if it is, determining that the earphone is in wearing state, and control the loudspeaker and start to work, and described in entrance
Interrupt deterministic process；Otherwise, it is determined that the earphone is in non-wearing state.
In order to solve the above technical problems, the present invention also provides a kind of sound quality update the systems of earphone, comprising:
Obtained module, the sound that audio signal in the ante-chamber for obtaining earphone, based on a upper amendment period generates
Signal；
Compensating module, for the audio signal and the voice signal according to the upper amendment period to current amendment week
The audio signal of phase is adjusted, to correct the voice signal in ante-chamber.
In order to solve the above technical problems, the present invention also provides a kind of earphones, comprising:
First voice collection device, audio signal in the ante-chamber for obtaining earphone, based on a upper amendment period produce
Raw voice signal；
Memory, for storing computer program；
Processor realizes the step of the sound quality modification method of earphone as described above when for executing the computer program
Suddenly.
Preferably, further includes:
Second sound acquisition device, the environmental sound signal of the outside for obtaining the earphone.
Preferably, first voice collection device is the first microphone, and the second sound acquisition device is the second wheat
Gram wind.
It is in the ante-chamber including obtaining earphone, repaired based on upper one the present invention provides a kind of sound quality modification method of earphone
The voice signal that the audio signal of positive period generates；According to audio signal and voice signal to the current audio signal for correcting the period
It is adjusted, to correct the voice signal in ante-chamber.Specifically, audio signal can be generated by the loudspeaker in earphone in ante-chamber
Voice signal, but earphone wear it is bad etc. due to will lead to low frequency in the voice signal or medium-high frequency part occurs
Changed, the application is in view of the voice signal that the voice signal in ante-chamber is that human ear is heard, therefore, according to a upper amendment period
Voice signal and generate the audio signal of the voice signal and can know voice signal ideal corresponding with the audio signal
Gap between voice signal can be adjusted the audio signal in current amendment period based on this, be based on to correct
The voice signal that the audio signal in compensated current amendment period generates in ante-chamber, realizes the amendment to earphone sound quality,
It reduces or even avoids earphone and wear the bad influence to sound quality, improve user's listening experience.
The present invention also provides the sound quality update the system and earphone of a kind of earphone, have as the above method is identical beneficial to effect
Fruit.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is a kind of flow chart of the process of the sound quality modification method of earphone provided by the invention；
Fig. 2 is a kind of structural schematic diagram of the sound quality update the system of earphone provided by the invention；
Fig. 3 is a kind of structural schematic diagram of earphone provided by the invention；
Fig. 4 is a kind of setting principle figure of two microphones of earphone provided by the invention.
Specific embodiment
Core of the invention is to provide sound quality modification method, system and the earphone of a kind of earphone, realizes to earphone sound quality
Amendment, reduce and even avoid earphone and wear the bad influence to sound quality, improve user's listening experience.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is please referred to, Fig. 1 is a kind of flow chart of the process of the sound quality modification method of earphone provided by the invention, the party
Method includes:
S11: the voice signal that audio signal in the ante-chamber of earphone, based on a upper amendment period generates was obtained；
S12: the audio signal in current amendment period was carried out according to the audio signal in a upper amendment period and voice signal
Adjustment, to correct the voice signal in ante-chamber.
Specifically, the processor in earphone is in the audio signal for receiving sound source device (such as mobile phone, computer etc.) transmission
After the audio signal can be sent to loudspeaker, loudspeaker can generate voice signal in the ante-chamber of earphone.The ante-chamber of earphone is pressure
, the acoustic pressure of each position is identical in ante-chamber, and the voice signal in ante-chamber is also the voice signal that human ear is heard.It wears in earphone
When wearing bad (there are gap or earphone belt are askew between such as earphone and ear), sound that audio signal generates in ante-chamber
The low, middle and high frequency signal of signal may be impacted, and the sound quality heard so as to cause user is impaired.
It should also be noted that, the amendment period mentioned in the application includes time of collected sound signal and according to the sound
The corresponding audio signal of sound signal and voice signal treat the time that modified audio signal is adjusted.The amendment period can set
That sets is smaller, such as the amendment period can almost recognize for 50ms in this way, human ear is not felt by the modified delay of sound
To be that in real time, it is of course also possible to be other numerical value, the application do not limit particularly herein, determine according to the actual situation.
To solve the above-mentioned problems, the application considers after earphone determines, the ideal sound in audio signal and ante-chamber
Corresponding relationship between signal (voice signal when earphone wears normal) has also just determined.Based on this, although earphone is worn not
The voice signal that will lead in ante-chamber when good changes, but audio signal and the audio signal based on a upper amendment period
Corresponding relationship between corresponding ideal voice signal can know the voice signal ideal sound corresponding with the audio signal
Gap between sound signal can realize that the audio signal to the current amendment period is adjusted according to the gap, to correct
The voice signal that audio signal based on the current amendment period is generated in ante-chamber.
It can be appreciated that adjustment of the application to the audio signal in current amendment period, is essentially to since earphone is worn
Bad and the low, middle and high frequency signal in the voice signal of change compensation, specifically, when due to there is seam between earphone and ear
Gap and when the low frequency signal in voice signal being caused to miss, the application by the adjustment of the audio signal to the current amendment period,
So that the low frequency signal in the voice signal that loudspeaker generate in ante-chamber is increased than the low frequency signal in original voice signal
Add, the low frequency signal missed is balanced out with this, so that the gap between voice signal and ideal voice signal reduces or is
Zero.When having been worn partially due to earphone and the high frequency signal in voice signal is caused to increase or reduce, the application can also lead to
The adjustment for crossing the audio signal to the current amendment period, so that the high frequency signal in the voice signal that loudspeaker generate in ante-chamber
Correspondingly reduce or increase than the high frequency signal in original voice signal so that voice signal and ideal voice signal it
Between gap reduce or be zero.The application is reduced or even is avoided by the compensation to the signal of corresponding band in voice signal
Earphone wears the bad influence to sound quality, improves user's listening experience.
To sum up, the application according to the voice signal in a upper amendment period and generated the audio signal of the voice signal and can know
Gap between the road voice signal ideal voice signal corresponding with a upper amendment audio signal in period, can based on this
The audio signal in current amendment period is adjusted, is existed to correct the audio signal based on the compensated current amendment period
The voice signal generated in ante-chamber realizes the amendment to earphone sound quality, and it is bad to sound quality to reduce or even avoid earphone wearing
Influence, improve user's listening experience.
On the basis of the above embodiments:
As a kind of preferred embodiment, according to audio signal and voice signal to the audio signal in current amendment period into
Row adjustment, to correct the voice signal in ante-chamber, comprising:
Correction amount was determined according to the audio signal in a upper amendment period and voice signal；
Wherein, correction amountS is audio signal, X1For voice signal, F is that earphone is in ideal pendant
Wear down, in the loudspeaker to the ante-chamber for obtaining earphone of earphone, based on it is upper one amendment the period audio signal generate sound
The transmission function of first voice collection device of signal；
Correction amount is superimposed to the audio signal in current amendment period, to correct the voice signal in ante-chamber.
Specifically, the application is transmitted in view of the corresponding relationship between the voice signal in audio signal and ante-chamber can be used
Function indicates, earphone be in it is ideal wear (i.e. earphone is not worn askew, without gap between ear yet) under, utilizing
The voice signal that audio signal in ante-chamber of first voice collection device to obtain earphone, based on a upper amendment period generates
When, the transmission function of loudspeaker (including loudspeaker) to the first voice collection device is F.
It is understood that, in the case where earphone is in ideal and wears, loudspeaker are adopted to the first sound after the structure determination of earphone
The transmission function F of acquisition means be also it is determining, therefore, it can be appreciated that if not by earphone wear deleterious effect, audio letter
Number corresponding ideal voice signal should are as follows: S*F.And the voice signal that the first voice collection device is picked up at this time is X1, then manage
The difference for thinking voice signal and the voice signal is S*F-X1, since the frequency response (transmission function) of earphone in the case of this kind isThe signal namely correction amount for then needing to compensate
After correction amount has been determined, correction amount can be superimposed in the audio signal in current amendment period, in this way, root
It is revised voice signal according to the voice signal that the audio signal in superimposed current amendment period generates, is directly realized
Amendment to earphone sound quality, erection rate is fast, reduces or even avoids earphone and wear the bad influence to sound quality, improves user
Listening experience.
Certainly, it after determining the difference of ideal voice signal and the voice signal, can not also use this in the application
Correction amount is directly superimposed to the mode in the audio signal in current amendment period to be adjusted, other modes can also be used
To be folded in the currently audio signal in amendment period when being adjusted to the audio signal in current amendment period, such as adjusting every time
Add a small correction amount, which is less than correction amount W, to realize the gradually adjustment to the voice signal in ante-chamber.This Shen
It is not particularly limited for specifically using which kind of mode to carry out sound amendment please, determines according to the actual situation.
As a kind of preferred embodiment, further includes:
Obtain the environmental sound signal of the outside of earphone；
Then the audio signal in current amendment period was adjusted according to the audio signal in a upper amendment period and voice signal
It is whole, to correct the voice signal in ante-chamber, comprising:
Correction amount was determined according to audio signal, voice signal and the environmental sound signal in a upper amendment period for earphone；
Wherein, correction amountX2For environmental sound signal, F21For for obtaining ear
Transmission function of the second sound acquisition device of the environmental sound signal of the outside of machine to the first voice collection device；
Correction amount is superimposed to the audio signal in current amendment period, to correct the voice signal in ante-chamber.
The application is in view of in practical application, when earphone is not worn, the voice signal in earphone ante-chamber includes
Not only voice signal of loudspeaker sending, it is also possible to which there is the external worlds come by the gap between earphone and ear
Environmental sound signal.In that case, the collected voice signal X of the first voice collection device just cannot only be passed through1It calculates
Loudspeaker to the first voice collection device transmission function F, it should also be taken into account that environmental sound signal X2, otherwise, outside environmental sounds
Signal may be collected by the first voice collection device, influence the amendment of voice signal.
Specifically, audio signal S wears the sound that bad and also influenced by external environment in the case where generates in earphone
Signal is X1-X2*F21, wherein F21For second sound acquisition device to the transmission function of the first voice collection device, this kind of situation
The frequency response (transmission function) of lower earphone isIn the case of this kind, ideal voice signal and the voice signal
Difference is S*F- (X1-X2*F21), then the signal namely correction amount for needing to compensate
After correction amount W has been determined, correction amount W can be directly superimposed in the audio signal in current amendment period,
In this way, be revised voice signal according to the voice signal that the audio signal in superimposed current amendment period generates, this
Application it is timely realize modified to voice signal on the basis of, it is also contemplated that external environmental sounds signal corrects voice signal
Influence improve the modified precision of sound by being filtered out to extraneous environmental sound signal, further improve the receipts of user
Listen effect.
As a kind of preferred embodiment, the gain of W is not more than gain threshold, and gain threshold is so that modified voice signal
Undistorted is constraint condition to set.
It should be noted that after determining correction amount W according to aforesaid way, it is considered however that actual conditions, if one
Such as earphone is in special circumstances almost without being worn on ear a bit, and correction amount W may be very big at this time, but if not to amendment
Amount W limits and is directly modified to the audio signal in current amendment period, then is likely to result in the distortion of voice signal.It is based on
This, this application claims the gains of correction amount W to be not more than gain threshold, in that case, when the gain of correction amount W is greater than gain
When threshold value, then the case where being equal to gain threshold according to the gain of correction amount W, adjusts the audio signal in current amendment period
It is whole.By this kind of mode may be implemented sound quality amendment and guarantee sound quality it is undistorted between balance, guarantee sound quality it is distortionless
On the basis of voice signal is modified, further improve user's audibility.
As a kind of preferred embodiment, the gain of W is not more than 15dB.
It is understood that the application does not make particularly to limit for the gain of correction amount W, it can also be other numbers
Value is determined according to the actual situation.
As a kind of preferred embodiment, further includes:
Carry out interruption deterministic process, wherein interrupting deterministic process includes:
When calculating separately the gain for limiting W, the voice signal in the first calculating cycle is in first frequency value to second frequency
The first lower-frequency envelope energy between value and voice signal when not limiting the gain of W, in the first calculating cycle are in first frequency
It is worth to the second lower-frequency envelope energy between second frequency value；
Judge that the second lower-frequency envelope energy subtracts whether the difference that the first lower-frequency envelope energy obtains is greater than the first preset value,
If it is, determining that earphone is in non-wearing state, and controls loudspeaker and stop working；Otherwise, it is determined that earphone is in wearing state；
The difference of attenuation and gain threshold when first preset value is removed equal to earphone.
Specifically, above-described embodiment is mentioned, and audio signal generates voice signal by loudspeaker in ante-chamber, but in some feelings
Under condition, such as user does not wear earphone at all at this time namely earphone is in non-wearing state, but loudspeaker are still working, this
The power consumption of earphone is increased in the case of kind.In order to reduce the power consumption of earphone, whether the present embodiment additionally provides a kind of test earphone
Scheme in non-wearing state.
When being removed from ear in view of earphone, the low frequency signal in voice signal in earphone ante-chamber will substantially decline
Subtract, according to the scheme of the application, earphone has been removed modified extreme case at last, and the correction amount W generated at this time is certain to
Considerably more than gain threshold.So in the case, system can be equal to gain threshold with the gain of correction amount W come to currently repairing
The audio signal of positive period is modified.In the case, the voice signal in ante-chamber is actually between ideal voice signal
Still it can have differences, be based on this, when the application can calculate the gain for limiting W, the voice signal in the first calculating cycle is the
One frequency values are not to the first lower-frequency envelope energy between second frequency value and when limiting the gain of W, in the first calculating cycle
Voice signal is in first frequency value to the second lower-frequency envelope energy between second frequency value, if the difference of the two is greater than at this time
First preset value, and the difference of the attenuation and gain threshold when the first preset value is removed equal to earphone, then illustrate be at this time
It is equal to gain threshold according to the gain of correction amount W come what is calculated, then can determine that earphone is at this time and be removed namely non-wearing shape
State, otherwise, then it is assumed that earphone is in wearing state.When determining that earphone is in non-wearing state, control loudspeaker stop working, this
When trumpet end will not export voice signal.
The application (is Frequency value, such as first for the first calculating cycle, first frequency value and second frequency value
Frequency values are 20Hz, second frequency value is 100Hz) it does not limit particularly, determine according to the actual situation.
For convenience of understanding, an example is set forth below to be described to the present embodiment:
When usual earphone is removed, the low frequency signals decay in earphone ante-chamber is greater than 20dB, when earphone is removed, first
Lower-frequency envelope energy and the second lower-frequency envelope energy can have bigger difference, main reason is that the gain of correction amount W at this time
Greatly, it cannot be superimposed to the audio signal in current amendment period according to the numerical value actually calculated, but be superimposed with gain threshold
To the audio signal in current amendment period, by taking gain threshold is 15dB as an example, then when the second lower-frequency envelope energy and the first low frequency
When the difference of envelope energy is greater than 5dB, namely at this time in the case where compensating already for 15dB still above 5dB, then illustrate this
When low frequency signals decay be more than 20dB, namely earphone is removed at this time, is in non-wearing state；Otherwise, it is still within pendant
Wear state.
Loudspeaker can be controlled when earphone is removed through this embodiment to stop working, reduce the power consumption of earphone, improve
The degree of automation of earphone.
As a kind of preferred embodiment, after control control loudspeaker stop working, further includes:
Into connection deterministic process, connection deterministic process includes:
The voice signal in the second calculating cycle is calculated in third frequency values to the first high frequency packet between the 4th frequency values
Network energy；
The environmental sound signal calculated in the second calculating cycle is high to second between the 4th frequency values in third frequency values
Frequency envelope energy；
Judge that the second high-frequency envelope energy subtracts whether the difference that the first high-frequency envelope energy obtains is greater than the second preset value,
If it is, determining that earphone is in wearing state, and loudspeaker start-up operation is controlled, and enter and interrupt deterministic process；Otherwise, it is determined that
Earphone is in non-wearing state.
When the present embodiment is worn in view of earphone, the auricular concha of earphone can obstruct the high-frequency signal namely earphone of part
Before being worn, the high-frequency signal in ante-chamber is identical with the high-frequency signal outside earphone；(the also non-work of loudspeaker at this time after earphone is worn
Make), the high-frequency signal outside high-frequency signal and earphone in ante-chamber is different, and the high-frequency signal in ante-chamber than earphone outside
High-frequency signal it is few.
Based on this, the present embodiment is also when earphone is in non-wearing state, by judging the high-frequency envelope in earphone ante-chamber
High-frequency envelope energy outside energy and earphone determines whether earphone is in non-wearing state.Specifically, second is calculated to calculate
The the first high-frequency envelope energy of voice signal in period in low-frequency range；The environmental sound signal calculated in the second calculating cycle exists
Second high-frequency envelope energy of same low-frequency range；If the second high-frequency envelope energy subtracts the difference that the first high-frequency envelope energy obtains
Whether value is greater than the second preset value, then illustrates that earphone is in wearing state, and controls loudspeaker start-up operation, and enter and interrupt judgement
Process；Otherwise, then illustrate that earphone is in non-wearing state.
The application (is higher frequency value, such as third for the second calculating cycle, third frequency values and the 4th frequency values
Frequency values are 2000Hz, the 4th frequency values are 10000Hz) it does not limit particularly, determine according to the actual situation.
It realizes through this embodiment and whether wearing state is in earphone and non-wearing state judges automatically, and realize
Automatic control to loudspeaker reduces the power consumption of earphone, improves the degree of automation of earphone control.
Referring to figure 2., Fig. 2 is a kind of structural schematic diagram of the sound quality update the system of earphone provided by the invention, the system
Include:
Obtained module 11, the sound that audio signal in the ante-chamber for obtaining earphone, based on a upper amendment period generates
Sound signal；
Compensating module 12, for the audio signal and voice signal according to a upper amendment period to the current sound for correcting the period
Frequency signal is adjusted, to correct the voice signal in ante-chamber.
Above method embodiment is please referred to for the introduction of the sound quality update the system of earphone provided by the invention, the application exists
This is repeated no more.
Referring to figure 3., Fig. 3 is a kind of structural schematic diagram of earphone provided by the invention；
The earphone includes:
First voice collection device 21, audio signal in the ante-chamber for obtaining earphone, based on a upper amendment period
The voice signal of generation；
Memory 22, for storing computer program；
Processor 23, when for executing computer program the step of the realization such as sound quality modification method of above-mentioned earphone.
As a kind of preferred embodiment, further includes:
Second sound acquisition device 24, the environmental sound signal of the outside for obtaining earphone.
As a kind of preferred embodiment, the first voice collection device 21 is the first microphone, second sound acquisition device
24 be second microphone.
It should be noted that the earphone referred in the application can be plug-in earphone, or circumaural earphone, this
Application does not limit specific which type of earphone particularly.
Specifically, the first microphone here can be set in ante-chamber, and second microphone can be set after earphone
In auricular concha, and sound hole is provided between second microphone and ear casing.Specifically referring to figure 4., Fig. 4 is provided by the invention one
The setting principle figure of two microphones of kind earphone.
In addition, the first voice collection device and second sound acquisition are in addition to that can be microphone, it can also be other types
Voice collection device, be able to achieve the object of the invention.
Above method embodiment please referred to for the introduction of the working principle of earphone provided by the invention, the present invention is herein not
It repeats again.
The present invention also provides a kind of computer readable storage medium, computer is stored on computer readable storage medium
Program, the step of sound quality modification method of earphone as described above is realized when computer program is executed by processor.
The above method is please referred to for the introduction of the working principle of computer readable storage medium provided by the invention to implement
Example, details are not described herein by the present invention.
It should be noted that in the present specification, relational terms such as first and second and the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of sound quality modification method of earphone characterized by comprising
Obtained the voice signal that audio signal in the ante-chamber of earphone, based on a upper amendment period generates；
The audio signal in current amendment period was carried out according to the audio signal in a upper amendment period and the voice signal
Adjustment, to correct the voice signal in ante-chamber.
2. the sound quality modification method of earphone as described in claim 1, which is characterized in that described according to the upper amendment period
Audio signal and the voice signal audio signal in current amendment period is adjusted, to correct the letter of the sound in ante-chamber
Number, comprising:
Correction amount was determined according to the audio signal in a upper amendment period and the voice signal；
Wherein, correction amountS is the audio signal, X1For the voice signal, F is at the earphone
Audio letter under ideal wear, in the loudspeaker to the ante-chamber for obtaining earphone of the earphone, based on a upper amendment period
Number generate voice signal the first voice collection device transmission function；
The correction amount is superimposed to the audio signal in current amendment period, to correct the voice signal in ante-chamber.
3. the sound quality modification method of earphone as claimed in claim 2, which is characterized in that further include:
Obtain the environmental sound signal of the outside of the earphone；
It is then described that the audio in current amendment period was believed according to the audio signal and the voice signal in a upper amendment period
It number is adjusted, to correct the voice signal in ante-chamber, comprising:
Correction amount is determined according to the audio signal of the earphone, the voice signal and the environmental sound signal；
Wherein, correction amountX2For the environmental sound signal, F21For for obtaining
The second sound acquisition device of the environmental sound signal of the outside of earphone is stated to the transmission function of first voice collection device；
The correction amount is superimposed to the audio signal in current amendment period, to correct the voice signal in ante-chamber.
4. the sound quality modification method of earphone as claimed in claim 2 or claim 3, which is characterized in that the gain of W is not more than gain threshold
Value, the gain threshold is so that the modified voice signal is undistorted sets for constraint condition.
5. the sound quality modification method of earphone as claimed in claim 4, which is characterized in that further include:
Carry out interruption deterministic process, wherein the interruption deterministic process includes:
When calculating separately the gain for limiting W, the voice signal in the first calculating cycle is in first frequency value to second frequency
The first lower-frequency envelope energy between value and voice signal when not limiting the gain of W, in the first calculating cycle are first
Frequency values are to the second lower-frequency envelope energy between second frequency value；
Judge that the second lower-frequency envelope energy subtracts whether the difference that the first lower-frequency envelope energy obtains is greater than first in advance
If value, if it is, determining that the earphone is in non-wearing state, and controls the loudspeaker and stops working；Otherwise, it is determined that described
Earphone is in wearing state；First preset value is equal to the difference of attenuation and the gain threshold when earphone is removed
Value.
6. the sound quality modification method of earphone as claimed in claim 5, which is characterized in that stop controlling the control loudspeaker
After only working, further includes:
Into connection deterministic process, the connection deterministic process includes:
The voice signal in the second calculating cycle is calculated in third frequency values to the first high frequency packet between the 4th frequency values
Network energy；
The environmental sound signal in second calculating cycle is calculated in the third frequency values to the 4th frequency values
Between the second high-frequency envelope energy；
Judge that the second high-frequency envelope energy subtracts whether the difference that the first high-frequency envelope energy obtains is greater than second in advance
If value, if it is, determining that the earphone is in wearing state, and controls the loudspeaker and start to work, and enter the interruption
Deterministic process；Otherwise, it is determined that the earphone is in non-wearing state.
7. a kind of sound quality update the system of earphone characterized by comprising
Obtained module, the voice signal that audio signal in the ante-chamber for obtaining earphone, based on a upper amendment period generates；
Compensating module, for the audio signal and the voice signal according to the upper amendment period to the current amendment period
Audio signal is adjusted, to correct the voice signal in ante-chamber.
8. a kind of earphone characterized by comprising
First voice collection device, what audio signal in the ante-chamber for obtaining earphone, based on a upper amendment period generated
Voice signal；
Memory, for storing computer program；
Processor realizes the sound quality amendment of the earphone as described in any one of claim 1 to 6 when for executing the computer program
The step of method.
9. earphone as claimed in claim 8, which is characterized in that further include:
Second sound acquisition device, the environmental sound signal of the outside for obtaining the earphone.
10. earphone as claimed in claim 8, which is characterized in that first voice collection device is the first microphone, described
Second sound acquisition device is second microphone.
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