CN109327757A - A kind of dual microphone noise cancelling headphone and its sound processing method, device - Google Patents
A kind of dual microphone noise cancelling headphone and its sound processing method, device Download PDFInfo
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- CN109327757A CN109327757A CN201811158452.7A CN201811158452A CN109327757A CN 109327757 A CN109327757 A CN 109327757A CN 201811158452 A CN201811158452 A CN 201811158452A CN 109327757 A CN109327757 A CN 109327757A
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- earphone
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- microphones
- noise
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
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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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1041—Mechanical or electronic switches, or control elements
Abstract
The invention discloses a kind of dual microphone noise cancelling headphone and its sound processing methods, device and computer readable storage medium; diamylose gram noise cancelling headphone includes two microphones being set in the back cavity of earphone; this method includes detecting whether the current wearing state of the earphone is that standard is worn; wherein, the positional relationship that the standard is worn between two microphones and user's mouth that are the earphone meets corresponding wearing state when shielding angle requirement；If so, two microphones of control are in open state, and noise reduction process is carried out to the voice signal that two microphones pick up using diamylose gram noise-reduction method；If it is not, the microphone then controlled in two microphones is in the open state, and noise reduction process is carried out to the voice signal that microphone picks up using single Mike's noise-reduction method.The application can ensure to be still able in use preferably to pick up the voice signal of user when earphone wears incorrect, to guarantee the normal talking of user.
Description
Technical field
The present embodiments relate to microphone denoising technical field, more particularly to a kind of dual microphone noise cancelling headphone and its
Sound processing method, device and computer readable storage medium.
Background technique
With the development of science and technology, requirement of the people to quality of the life is higher and higher, consumer electronics product is also more and more general
And the frequency of use of earphone is also higher and higher.When user is conversed using earphone in a noisy environment, ambient enviroment is made an uproar
Sound can impact speech quality, prevent other side is from catching communication well, influencing user experience and linking up effect
Rate.In order to solve this problem, there is the uplink noise reduction of multi-microphone, wherein the application of diamylose gram noise cancelling headphone is more general
Time.
Based on Wave beam forming principle, two microphones on dual microphone noise cancelling headphone can acquire the voice of user's sending
And ambient noise, the distance between two microphones are known, because two microphones are different at a distance from mouth, two
The voice intensity that a collected user of microphone issues is different, and the ambient noise for reaching two microphones is essentially identical, therefore
Algorithm can be handled the collected voice signal of two microphones and noise signal, and removal noise section retains voice
Part, to reach preferable communication effect.
Since Wave beam forming principle has certain requirement to the consistency of two microphones, position and distance, so being based on
The earphone of diamylose gram noise reduction needs the angle when wearing between the line and mouth of two microphones in preset range (default protection
Angle θ) interior (as shown in Figure 1), namely the only microphone ability when correctly wearing (diamylose gram and the position of mouth meet design requirement)
It can be good at picking up the voice signal and noise remove of user, still, in actual use, user may when wearing earphone
So that two microphones is deviateed protection angular region since wearing mode is incorrect, microphone is caused to pick up to voice signal decrease, language
Sound quality reduces, this part signal is caused to be eliminated as noise, when two microphones, which deviate, protects angular region larger, very
To causing microphone to pick up the voice signal less than user completely, the normal talking of user is influenced.
In consideration of it, how to provide it is a kind of solve above-mentioned technical problem dual microphone noise cancelling headphone and its acoustic processing side
Method, device and computer readable storage medium become the current problem to be solved of those skilled in the art.
Summary of the invention
The purpose of the embodiment of the present invention is that providing a kind of dual microphone noise cancelling headphone and its sound processing method, device and meter
Calculation machine readable storage medium storing program for executing can ensure to be still able to when earphone wears incorrect in use preferably to pick up user
Voice signal, to guarantee the normal talking of user.
In order to solve the above technical problems, the embodiment of the invention provides a kind of acoustic processing sides of dual microphone noise cancelling headphone
Method is applied to diamylose gram noise cancelling headphone, and the diamylose gram noise cancelling headphone includes two microphones being set in the back cavity of earphone,
Include:
Whether the current wearing state for detecting the earphone is that standard is worn, wherein it is the earphone that the standard, which is worn,
Two microphones and user's mouth between positional relationship meet corresponding wearing state when shielding angle requirement；
If so, controlling described two microphones is in open state, and using diamylose gram noise-reduction method to two institutes
It states the voice signal that microphone picks up and carries out noise reduction process；
If it is not, the microphone then controlled in two microphones is in the open state, and using single Mike's noise reduction
Method carries out noise reduction process to the voice signal that the microphone picks up.
It optionally, whether is before standard is worn in the current wearing state of the detection earphone, the method is also
Include:
The signal strength of ambient noise present signal is detected whether more than the first preset threshold, if so, executing detection institute
Whether the current wearing state for stating earphone is the step of standard is worn, if it is not, then controlling a wheat in two microphones
Gram wind is in the open state, and does not carry out noise reduction process to the voice signal that the microphone picks up.
Optionally, when the current wearing state for detecting the earphone is non-standard wearing, the method also includes:
It detects and whether is coupled between the ear muff of the earphone and user's head,
If so, judge the coupling coupled modes whether be standard coupling, if it is not, then to the loudspeaker of the earphone before
The low frequency part of end electric signal compensates；
If it is not, then the Computation of Horn Gain of the earphone is adjusted, make loudspeaker work under nominal power.
Optionally, the process whether coupled between the ear muff and user's head of the detection earphone are as follows:
Obtain and be set to each one-to-one pressure value of pressure sensor in the ear muff；
Judge whether each pressure value is respectively less than preset pressure threshold value, if so, the ear muff of the earphone and user
It is not coupled between head；If it is not, then being coupled between the ear muff of the earphone and user's head.
Optionally, the coupled modes for judging the coupling whether be standard coupling process are as follows:
Judge with the presence or absence of the pressure value less than the preset pressure threshold value in each pressure value, if so, described
Coupled modes are non-standard coupling, if it is not, then the coupled modes are standard coupling.
Optionally, whether the current wearing state of the detection earphone is process that standard is worn are as follows:
Obtain and be set to each one-to-one pressure value of pressure sensor in the ear muff；
Institute is judged according to each pressure value and with each one-to-one typical pressure range of pressure sensor
Whether the current wearing state for stating earphone is standard wearing state, when with the pressure value of each pressure sensor pair corresponding
When in typical pressure range, current wearing state is standard wearing, and otherwise, current wearing state is non-standard wearing.
Optionally, the method also includes:
Judge whether the signal strength for the user voice signal that the microphone picks up is lower than the second preset threshold, if
It is then to increase the yield value of the microphone.
The embodiment of the present invention provides a kind of sound processing apparatus of dual microphone noise cancelling headphone accordingly, is applied to diamylose
Gram noise cancelling headphone, the diamylose gram noise cancelling headphone includes two microphones being set in the back cavity of earphone, comprising:
First detection module, whether the current wearing state for detecting the earphone is that standard is worn, wherein the mark
The positional relationship that standard is worn between two microphones and user's mouth that are the earphone meets corresponding wearing when shielding angle requirement
State, if so, triggering first processing module；If it is not, then triggering Second processing module；
The first processing module is in open state for controlling described two microphones, and is dropped using diamylose gram
Method for de-noising carries out noise reduction process to the voice signal that two microphones pick up；
The Second processing module, it is in the open state for controlling a microphone in two microphones, and
Noise reduction process is carried out to the voice signal that the microphone picks up using single Mike's noise-reduction method.
The embodiment of the invention also provides a kind of dual microphone noise cancelling headphones, including two wheats being set in earphone back cavity
Gram wind, memory and processor, in which:
The memory, for storing computer program；
The processor realizes the sound of dual microphone noise cancelling headphone as described above when for executing the computer program
The step of voice handling method.
The embodiment of the invention also provides a kind of computer readable storage medium, deposited on the computer readable storage medium
Computer program is contained, the computer program realizes the sound of dual microphone noise cancelling headphone as described above when being executed by processor
The step of voice handling method.
The embodiment of the invention provides a kind of dual microphone noise cancelling headphones and its sound processing method, device and computer can
Storage medium is read, diamylose gram noise cancelling headphone includes two microphones being set in the back cavity of earphone, this method comprises: detection institute
Whether the current wearing state for stating earphone is that standard is worn, wherein the standard wear be the earphone two microphones with
Positional relationship between user's mouth meets corresponding wearing state when shielding angle requirement；If so, two microphones of control are located
Noise reduction process is carried out to the voice signal that two microphones pick up in open state, and using diamylose gram noise-reduction method；If it is not,
The microphone then controlled in two microphones is in the open state, and is arrived using single Mike's noise-reduction method to microphone pickup
Voice signal carry out noise reduction process.
As it can be seen that the application is capable of determining that whether earphone is standard wearing by the current wearing state of test earphone, if
For standard wearing, then illustrate that earphone wears the normal namely positional relationship between two microphones and user's mouth and meets earphone
Shielding angle requirement, two microphones that can control earphone at this time are in open state, earphone are made to enter dual microphone noise reduction
Operating mode, if non-standard wearing, then the relative position of two microphones illustrating earphone and user's mouth deviates from protection
Angular region, and since positional relationship of single Mike's noise reduction to microphone and mouth does not require, so working as the current wearing of earphone
When state is non-standard wearing, the microphone controlled in earphone is closed, another microphone is in the open state, makes earphone
Into the operating mode of single microphone noise reduction, the application can ensure to be still able to preferably pick up when earphone wears incorrect
The voice signal of user, to guarantee the normal talking of user.
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 the shielding angle schematic diagram of existing dual microphone noise cancelling headphone；
Fig. 2 is a kind of process signal of sound processing method of dual microphone noise cancelling headphone provided in an embodiment of the present invention
Figure；
Fig. 3 is the process signal of the sound processing method of another dual microphone noise cancelling headphone provided in an embodiment of the present invention
Figure；
Fig. 4 is a kind of structural representation of the sound processing apparatus of dual microphone noise cancelling headphone provided in an embodiment of the present invention
Figure.
Specific embodiment
The embodiment of the invention provides a kind of dual microphone noise cancelling headphones and its sound processing method, device and computer can
Storage medium is read, can ensure to be still able to preferably to pick up the sound of user in use when earphone wears incorrect
Signal, to guarantee the normal talking of user.
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.
Referring to figure 2., Fig. 2 is a kind of sound processing method of dual microphone noise cancelling headphone provided in an embodiment of the present invention
Flow diagram.
This method is applied to diamylose gram noise cancelling headphone, and diamylose gram noise cancelling headphone includes two be set in the back cavity of earphone
Microphone, this method comprises:
S110: whether the current wearing state of test earphone is that standard is worn, wherein two wheats that standard is worn as earphone
Positional relationship gram between wind and user's mouth meets corresponding wearing state when shielding angle requirement；If so, into S120, if
It is no, then enter S130；
It should be noted that in the application by earphone when wearing, between two microphones and user's mouth on earphone
Angle between line and the line of two microphones is protecting in angular region the state of (namely meeting shielding angle requirement) to be known as
Standard is worn, and other wearing states are known as non-standard wearing.Therefore the current pendant to earphone can be passed through after earphone unlatching
The state of wearing is detected, and is controlled earphone according to specific wearing state and entered corresponding noise reduction mode, no matter to realize assorted
Under the wear condition of sample, the microphone to work can be enable preferably to pick up the voice signal of user.
S120: two microphones of control are in open state, and are picked up using diamylose gram noise-reduction method to two microphones
The voice signal got carries out noise reduction process；
Specifically, illustrate that wearing mode meets shielding angle requirement when the current wearing state of earphone is that standard is worn,
I.e. two microphones can preferably pick up the voice signal of user at this time, be in out so controlling two microphones at this time
The state opened carries out noise reduction process to voice signal by the way of dual microphone noise reduction.The application is by dual microphone noise reduction
Mode becomes dual microphone noise reduction mode, namely when earphone is in the state of standard wearing, directly controls earphone and enter diamylose
Gram wind noise reduction mode.
S130: a microphone in two microphones of control is in the open state, and using single Mike's noise-reduction method pair
The voice signal that microphone picks up carries out noise reduction process.
In addition, illustrating that wearing mode is unsatisfactory for the protection of earphone when the current wearing state of earphone is non-standard wearing
Angle requires, if at this time still being weakened the user voice signal for causing microphone to pick up using dual microphone noise reduction mode, sound
Matter reduces, or even picks up the voice signal less than user, so controlling earphone in the application when earphone is in non-standard wearing
Into single microphone noise reduction mode, that is, a microphone in another two microphone is in the open state, another microphone
It is in close state, and is dropped using the voice signal that single Mike's noise-reduction method picks up microphone in the open state
It makes an uproar processing.It should be noted that the positional relationship between microphone and user's mouth is not required in single microphone noise-reduction method,
Even if the positional relationship between two microphones and user's mouth of earphone is unsatisfactory for shielding angle requirement, using single microphone noise reduction
(namely one microphone of sampling picks up voice signal, and carries out noise reduction to the sound picked up using single Mike's noise-reduction method
Processing) when, microphone in the open state, which remains unchanged, can preferably pick up the voice signal of user, it can be ensured that pickup is arrived
User voice signal strength and sound quality, the call to ensure user is unimpeded.
As it can be seen that the application is capable of determining that whether earphone is standard wearing by the current wearing state of test earphone, if
For standard wearing, then illustrate that earphone wears the normal namely positional relationship between two microphones and user's mouth and meets earphone
Shielding angle requirement, two microphones that can control earphone at this time are in open state, earphone are made to enter dual microphone noise reduction
Operating mode, if non-standard wearing, then the relative position of two microphones illustrating earphone and user's mouth deviates from protection
Angular region, and since positional relationship of single Mike's noise reduction to microphone and mouth does not require, so working as the current wearing of earphone
When state is non-standard wearing, the microphone controlled in earphone is closed, another microphone is in the open state, makes earphone
Into the operating mode of single microphone noise reduction, the application can ensure to be still able to preferably pick up when earphone wears incorrect
The voice signal of user, to guarantee the normal talking of user.
On the basis of the above embodiments, the embodiment of the invention provides at the sound of another dual microphone noise cancelling headphone
Reason method, the present embodiment have made further instruction and optimization to technical solution, specifically referring to figure 3..This method specifically includes:
S200: whether the signal strength of detection ambient noise present signal is more than the first preset threshold, if so, executing
S210；If it is not, then entering S240；
It should be noted that being kept away when user is conversed in noisy environment using earphone in order to improve speech quality
Exempt from the larger partner of noise and do not hear the sound of user, so needing to open decrease of noise functions, the sound for picking up microphone
Signal carries out noise reduction process, still, if user is conversed under quiet environment using earphone, since noise very little is not so
Will affect the speech quality of user, so when can be not turned on decrease of noise functions, to save electric energy.Therefore in earphone in the present embodiment
After unlatching, two microphone defaults are in open state, extract and make an uproar in the voice signal picked up according to two microphones
Acoustical signal, and the signal strength of ambient noise present is judged whether more than the first preset threshold (such as 40dB), when more than first
Illustrate that user is in noisy environment when preset threshold, needs to enter noise reduction mode at this time, and can be by obtained in S210
The current wearing state of earphone determines which kind of noise reduction mode specifically entered；When the signal strength of noise signal is lower than the first preset threshold
When, it is believed that user is in quiet environment, at this point, i.e. executable S240, makes earphone enter single Mike in S240 without noise reduction
Mode.
Wherein, in the application the first preset threshold can specific value between 35~45dB, occurrence can root
It is determined according to actual conditions, the application is it is not limited here.
S210: whether the current wearing state of test earphone is that standard is worn, wherein two wheats that standard is worn as earphone
Positional relationship gram between wind and user's mouth meets corresponding wearing state when shielding angle requirement；If so, into S220, if
It is no, then enter S230；
Specifically, the application by earphone wear when earphone on two microphones and user's mouth between positional relationship meet
The state that shielding angle requires is known as standard wearing, and other wearing states are known as non-standard wearing.Therefore it can after earphone unlatching
To be detected by the current wearing state to earphone, and earphone is controlled according to specific wearing state and enters corresponding noise reduction
Mode, no matter the microphone to work can be enable preferably to pick up to realize under which type of wear condition
The voice signal of user, it can be ensured that the user voice signal strength and sound quality picked up, and then guarantee the normal talking of user.
Wherein, the current wearing state of above-mentioned test earphone whether be standard wear process, be specifically as follows:
Obtain and be set to the one-to-one pressure value of each pressure sensor in ear muff；
The current of earphone is judged according to each pressure value and with the one-to-one typical pressure range of each pressure sensor
Whether wearing state is standard wearing state, when with the pressure value of each pressure sensor pair in corresponding typical pressure range
When interior, current wearing state is standard wearing, and otherwise, current wearing state is non-standard wearing.
It should be noted that can by be arranged in the ear muff of earphone multiple pressure sensors and pre-set standard
Pressure limit detects the current wearing state of earphone, wherein pressure sensor can be 5, such as pressure sensor 1
To pressure sensor 5.
Specifically, in advance the corresponding pressure of each pressure sensor can be recorded according to earphone in the case where standard is worn
Power range records the typical pressure range of each pressure sensor pair when standard is worn inside ear muff, that is, according to earphone
Protection angular region determine earphone in the case where meeting the corresponding wearing state of shielding angle requirement, the corresponding standard of each pressure sensor
Pressure limit, will typical pressure range corresponding with each pressure sensor as it is subsequent judge earphone whether be in standard wear
The benchmark of state.For example, the typical pressure range of pressure sensor 1 is a1~b1, the typical pressure range of pressure sensor 2 is
A2~b2, the typical pressure range of pressure sensor 3 are a3~b3, and the typical pressure range of pressure sensor 4 is a4~b4, pressure
The typical pressure range of force snesor 5 is a5~b5.
Wherein, after earphone unlatching, the detection signal that each pressure sensor detects is obtained, and pass according to each pressure
The corresponding detection signal acquisition of sensor and the one-to-one pressure value of each pressure sensor, namely obtain earphone and worn currently
Under state, each pressure sensor corresponding pressure value, such as 1 corresponding pressure value of pressure sensor are P1, pressure sensor 2
Corresponding pressure value is P2,3-P2 of pressure sensor, 4-P4 of pressure sensor, 5-P5 of pressure sensor, if each pressure passes
Sensor corresponding pressure value in respective standard pressure limit (such as P1 between a1~b1, P2 between a2~b2, P3 is in a3
Between~b3, P4 between a4~b4, P5 is between a5~b5), then illustrate that current wearing state is the state that standard is worn, if
Wherein one or more pressure values then illustrate that current wearing state is non-standard wearing not in corresponding typical pressure range
State.
It should be noted that the pressure value as detected by pressure sensor can accurately react ear muff corresponding position
The stress condition at place, thus by the pressure value of multiple sensors can accurate detection go out the wearing state of earphone, and pressure
Sensor has the characteristics that small in size, at low cost, it can be ensured that the accuracy in detection in the application, and be conducive to save the cost.
Certainly, it is also necessary to which explanation is not limited only to the current wearing shape using aforesaid way to earphone in the present embodiment
State is detected, and can also realize the detection to earphone wearing state using other modes, specific the application does not do special limit
It is fixed, it can be realized the purpose of the application.
S220: two microphones of control are in open state, and are picked up using diamylose gram noise-reduction method to two microphones
The voice signal got carries out noise reduction process；
Specifically, illustrate that wearing mode meets shielding angle requirement when the current wearing state of earphone is that standard is worn,
I.e. two microphones can preferably pick up the voice signal of user at this time, be in out so controlling two microphones at this time
The state opened carries out noise reduction process to voice signal by the way of dual microphone noise reduction.The application is by dual microphone noise reduction
Mode becomes dual microphone noise reduction mode, namely when earphone is in the state of standard wearing, directly controls earphone and enter diamylose
Gram wind noise reduction mode.
S230: a microphone in two microphones of control is in the open state, and using single Mike's noise-reduction method pair
The voice signal that microphone picks up carries out noise reduction process；
In addition, illustrating that wearing mode is unsatisfactory for the protection of earphone when the current wearing state of earphone is non-standard wearing
Angle requires, if at this time still being weakened the user voice signal for causing microphone to pick up using dual microphone noise reduction mode, sound
Matter reduces, or even picks up the voice signal less than user, so controlling earphone in the application when earphone is in non-standard wearing
Into single microphone noise reduction mode, that is, a microphone in another two microphone is in the open state, another microphone
It is in close state, and is dropped using the voice signal that single Mike's noise-reduction method picks up microphone in the open state
It makes an uproar processing.It should be noted that the positional relationship between microphone and user's mouth is not required in single microphone noise-reduction method,
Even if the positional relationship between two microphones and user's mouth of earphone is unsatisfactory for shielding angle requirement, using single microphone noise reduction
When, microphone in the open state, which remains unchanged, can preferably pick up the voice signal of user, and the call to ensure user is smooth
It is logical.
S240: the microphone sound in the open state, and microphone not being picked up in two microphones of control
Sound signal carries out noise reduction process.
It is understood that not needing to pick up microphone when user is conversed under quiet environment using earphone
The voice signal arrived carries out noise reduction process, therefore can control a microphone in two microphones and be in close state, another
A microphone is in the open state, and closes decrease of noise functions, namely control earphone enters mould of the single microphone without noise reduction at this time
Formula, to further save the electricity of earphone on the basis of ensuring speech quality.
Further, in the application when the current wearing state for detecting earphone is non-standard wearing, this method may be used also
With the following steps are included:
Whether coupled between the ear muff of test earphone and user's head,
If so, whether the coupled modes for judging coupling are standard coupling, if it is not, then to the loudspeaker front end electric signal of earphone
Low frequency part compensate；
If it is not, then the Computation of Horn Gain of earphone is adjusted, make loudspeaker work under nominal power.
It should be noted that in the application when the current wearing state of earphone is non-standard wearing, it is also necessary to judge ear
Whether machine is worn on ear, wherein can judge whether earphone is worn by judging whether to couple between ear muff and user's head
On ear, when the ear muff of earphone is in ear, illustrate to couple between the ear muff of earphone and user's head, when earphone is not worn
On ear, then illustrate not couple between ear muff and user's head, such as user on earphone carry neck or will be placed at this time
Other positions.
Wherein, for being coupled between earphone and user's head the case where, and need to judge between ear muff and user's head
Coupling whether be standard coupling, wherein the standard coupling in the application refers between ear muff and user's head there is no letting out
There is not the case where leaking sound that is, earphone is worn well on ear in leakage, it is corresponding it is non-standard couple refer to ear muff and
There is leakage in the coupling between user's head namely earphone is worn not well on ear, there is leakage sound phenomenon.
The case where for standard coupling, does not need then to do any processing namely loudspeaker uses the mode of default to work,
It does not need to compensate it.The case where for non-standard coupling, because there is leakage in the coupling between ear muff and user's head,
So needing to compensate low frequency, the low frequency part of loudspeaker front end electric signal can specifically be compensated, to ensure to lead to
Talk about quality.
In addition, the case where for not coupled between the ear muff and user's head of earphone, the loudspeaker of earphone apart from ear compared with
Far, the sound for hearing user becomes smaller, therefore, outer mode playback can be opened at this time, the Computation of Horn Gain of earphone can be improved, be made loudspeaker
Under nominal power, the sound for playing loudspeaker becomes larger for work, to allow users to hear the sound that loudspeaker play, to protect
Hinder speech quality.
Wherein, it should be noted that exist when coupling between the ear muff and user's head of earphone namely earphone is worn over ear
When on piece, the trumpet end of earphone usually meets the requirement of maximum sound pressure level, and the operating power of loudspeaker is lower than its rated power.This Shen
Please in when earphone is not worn on ear, can by adjust loudspeaker gain make trumpet end work under its rated power.
Further, the process whether coupled between the ear muff of the test earphone in the application and user's head, specifically
It can be with are as follows:
Obtain and be set to the one-to-one pressure value of each pressure sensor in ear muff；
Judge whether each pressure value is respectively less than preset pressure threshold value, if so, between the ear muff and user's head of earphone
It does not couple；If it is not, then being coupled between the ear muff of earphone and user's head.
Specifically, when the pressure value that pressure sensor all in each pressure sensor detects is both less than preset pressure
Threshold value N1 then illustrates that earphone is not worn on ear namely does not couple between the ear muff of earphone and user's head；When at least one
When a pressure value is not less than preset pressure threshold value N1, illustrate to couple between the ear muff of earphone and user's head.Wherein, preset pressure
The specific value of threshold value can be determined according to the actual situation, and the application does not do particular determination.
Correspondingly, it is above-mentioned judge coupling coupled modes whether be standard coupling process, be specifically as follows:
Judge with the presence or absence of the pressure value less than preset pressure threshold value in each pressure value, if so, coupled modes are non-
Standard coupling, if it is not, then coupled modes are standard coupling.
That is, working as some pressure value in the pressure value that each pressure sensor detects reaches preset pressure threshold value,
When another part pressure value is less than preset pressure threshold value, illustrates that the coupling between ear muff and user's head has leakage, be nonstandard
Quasi- coupling, if all pressure values reach preset pressure threshold value, then there is no leakages for explanation, couple for standard.
Further, this method may also comprise the following steps::
Judge whether the signal strength for the user voice signal that microphone picks up is lower than the second preset threshold, if so,
Increase the yield value of microphone.
It, can be during user's communication to being currently at out it should be noted that in order to further ensure that speech quality
It opens after the voice signal that the microphone of state picks up handled, extracts user voice signal, if user voice signal
Signal strength is lower than the second preset threshold, illustrates that user's sound of speaking is lower, can tune up microphone gain at this time, to improve
The signal strength of the user voice signal picked up, so that the other user of call can clearly hear the side of speaking user's
Sound.Wherein, the specific value of the second preset threshold can be determined according to the actual situation, and the application does not do particular determination.
On the basis of the above embodiments, the embodiment of the present invention provides a kind of sound of dual microphone noise cancelling headphone accordingly
Sound processor, specifically referring to figure 4..The device is applied to diamylose gram noise cancelling headphone, and diamylose gram noise cancelling headphone includes being set to
Two microphones in the back cavity of earphone, the device include:
First detection module 41, whether the current wearing state for test earphone is that standard is worn, wherein standard is worn
Positional relationship between two microphones and user's mouth of earphone meets corresponding wearing state when shielding angle requirement, if so,
Then trigger first processing module 42；If it is not, then triggering Second processing module 43；
First processing module 42 is in open state for controlling two microphones, and uses diamylose gram noise-reduction method
Noise reduction process is carried out to the voice signal that two microphones pick up；
Second processing module 43, it is in the open state for controlling a microphone in two microphones, and using single
Mike's noise-reduction method carries out noise reduction process to the voice signal that microphone picks up.
Further, the device further include:
Second detection module, for whether detecting the signal strength of ambient noise present signal more than the first preset threshold,
If so, triggering first detection module；If it is not, then triggering third processing module；
Third processing module, it is in the open state for controlling a microphone in two microphones, and not to Mike
The voice signal that wind picks up carries out noise reduction process.
Further, which further includes third detection module, in which:
First detection module is also used to trigger third when the current wearing state for detecting earphone is non-standard wearing
Detection module；:
Third detection module, for whether being coupled between the ear muff and user's head of test earphone, if so, triggering first
Judgment module；If it is not, then triggering adjustment module；
First judgment module, for judging whether the coupled modes of coupling are standard coupling, if it is not, then to the loudspeaker of earphone
The low frequency part of front end electric signal compensates；
Adjustment module is adjusted for the Computation of Horn Gain to earphone, makes loudspeaker work under nominal power.
It should be noted that the sound processing apparatus of dual microphone noise cancelling headphone provided in the present embodiment have with it is upper
State the identical beneficial effect of sound processing method of dual microphone noise cancelling headphone provided in embodiment of the method.In addition, for
The specific introduction of the sound processing method of involved dual microphone noise cancelling headphone in the present embodiment please refers to above method reality
Example is applied, details are not described herein by the application.
On the basis of the above embodiments, the embodiment of the invention also provides a kind of dual microphone noise cancelling headphones.The earphone
Including two microphones, memory and the processor being set in earphone back cavity, in which:
Memory, for storing computer program；
Processor is realized when for executing computer program such as the sound processing method of above-mentioned dual microphone noise cancelling headphone
Step.
For example, whether the processor in the present embodiment is that standard is worn for realizing the current wearing state for detecting the earphone
It wears, wherein the positional relationship that the standard wears between two microphones and user's mouth that are the earphone meets shielding angle and wants
Corresponding wearing state when asking；If so, two microphones of control are in open state, and use diamylose gram noise-reduction method pair
The voice signal that two microphones pick up carries out noise reduction process；If it is not, then controlling at a microphone in two microphones
Noise reduction process is carried out to the voice signal that microphone picks up in open state, and using single Mike's noise-reduction method.
It should be noted that the dual microphone noise cancelling headphone in the application further includes loudspeaker and battery certainly, in addition, may be used also
To include the multiple pressure sensors being set to inside ear muff, the pressure detected so as to processor according to each pressure sensor
It value and is detected with current wearing state of the one-to-one typical pressure range of each pressure sensor to earphone.
On the basis of the above embodiments, the embodiment of the invention also provides a kind of computer readable storage mediums, calculate
It is stored with computer program on machine readable storage medium storing program for executing, realizes that above-mentioned dual microphone such as drops when computer program is executed by processor
Make an uproar earphone sound processing method the step of.
The computer readable storage medium may include: USB flash disk, mobile hard disk, read-only memory (Read-Only
Memory, ROM), random access memory (RandomAccess Memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except 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 processing method of dual microphone noise cancelling headphone is applied to diamylose gram noise cancelling headphone, the diamylose gram noise reduction
Earphone includes two microphones being set in the back cavity of earphone characterized by comprising
Whether the current wearing state for detecting the earphone is that standard is worn, wherein it is the two of the earphone that the standard, which is worn,
Positional relationship between a microphone and user's mouth meets corresponding wearing state when shielding angle requirement；
If so, controlling described two microphones is in open state, and using diamylose gram noise-reduction method to two wheats
The voice signal that gram wind picks up carries out noise reduction process；
If it is not, the microphone then controlled in two microphones is in the open state, and using single Mike's noise-reduction method
Noise reduction process is carried out to the voice signal that the microphone picks up.
2. the sound processing method of dual microphone noise cancelling headphone according to claim 1, which is characterized in that in the detection
Before whether the current wearing state of the earphone is standard wearing, the method also includes:
The signal strength of ambient noise present signal is detected whether more than the first preset threshold, detects the ear if so, executing
Whether the current wearing state of machine is the step of standard is worn, if it is not, then controlling a microphone in two microphones
It is in the open state, and noise reduction process is not carried out to the voice signal that the microphone picks up.
3. the sound processing method of dual microphone noise cancelling headphone according to claim 1 or 2, which is characterized in that work as detection
When current wearing state to the earphone is non-standard wearing, the method also includes:
It detects and whether is coupled between the ear muff of the earphone and user's head,
If so, whether the coupled modes for judging the coupling are standard coupling, if it is not, then to the loudspeaker front end electricity of the earphone
The low frequency part of signal compensates；
If it is not, then the Computation of Horn Gain of the earphone is adjusted, make loudspeaker work under nominal power.
4. the sound processing method of dual microphone noise cancelling headphone according to claim 3, which is characterized in that the detection institute
State the process whether coupled between the ear muff of earphone and user's head are as follows:
Obtain and be set to each one-to-one pressure value of pressure sensor in the ear muff；
Judge whether each pressure value is respectively less than preset pressure threshold value, if so, the ear muff and user's head of the earphone
Between do not couple；If it is not, then being coupled between the ear muff of the earphone and user's head.
5. the sound processing method of dual microphone noise cancelling headphone according to claim 4, which is characterized in that the judgement institute
State coupling coupled modes whether be standard coupling process are as follows:
Judge with the presence or absence of the pressure value less than the preset pressure threshold value in each pressure value, if so, the coupling
Mode is non-standard coupling, if it is not, then the coupled modes are standard coupling.
6. the sound processing method of dual microphone noise cancelling headphone according to claim 3, which is characterized in that the detection institute
State earphone current wearing state whether be standard wear process are as follows:
Obtain and be set to each one-to-one pressure value of pressure sensor in the ear muff；
The ear is judged according to each pressure value and with each one-to-one typical pressure range of pressure sensor
Whether the current wearing state of machine is standard wearing state, when with the pressure value of each pressure sensor pair in corresponding standard
When in pressure limit, current wearing state is standard wearing, and otherwise, current wearing state is non-standard wearing.
7. the sound processing method of dual microphone noise cancelling headphone according to claim 3, which is characterized in that the method is also
Include:
Judge whether the signal strength for the user voice signal that the microphone picks up is lower than the second preset threshold, if so,
Increase the yield value of the microphone.
8. a kind of sound processing apparatus of dual microphone noise cancelling headphone is applied to diamylose gram noise cancelling headphone, the diamylose gram noise reduction
Earphone includes two microphones being set in the back cavity of earphone characterized by comprising
First detection module, whether the current wearing state for detecting the earphone is that standard is worn, wherein the standard is worn
It wears the positional relationship between two microphones and user's mouth for the earphone and meets corresponding wearing state when shielding angle requirement,
If so, triggering first processing module；If it is not, then triggering Second processing module；
The first processing module is in open state for controlling described two microphones, and uses diamylose gram noise reduction side
Method carries out noise reduction process to the voice signal that two microphones pick up；
The Second processing module, it is in the open state for controlling a microphone in two microphones, and use
Single Mike's noise-reduction method carries out noise reduction process to the voice signal that the microphone picks up.
9. a kind of dual microphone noise cancelling headphone, which is characterized in that including two microphones, memories being set in earphone back cavity
And processor, in which:
The memory, for storing computer program；
The processor realizes the dual microphone as described in claim 1 to 7 any one when for executing the computer program
The step of sound processing method of noise cancelling headphone.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes the dual microphone noise reduction ear as described in claim 1 to 7 any one when the computer program is executed by processor
The step of sound processing method of machine.
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