CN109327757B - Dual-microphone noise reduction earphone and sound processing method and device thereof - Google Patents
Dual-microphone noise reduction earphone and sound processing method and device thereof Download PDFInfo
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- CN109327757B CN109327757B CN201811158452.7A CN201811158452A CN109327757B CN 109327757 B CN109327757 B CN 109327757B CN 201811158452 A CN201811158452 A CN 201811158452A CN 109327757 B CN109327757 B CN 109327757B
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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
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Abstract
The invention discloses a double-microphone noise reduction earphone and a sound processing method, a device and a computer readable storage medium thereof, wherein the double-microphone noise reduction earphone comprises two microphones arranged in a rear cavity of the earphone; if yes, controlling the two microphones to be in an open state, and performing noise reduction processing on the sound signals picked up by the two microphones by adopting a double-microphone noise reduction method; if not, controlling one of the two microphones to be in an open state, and carrying out noise reduction processing on the sound signals picked up by the microphones by adopting a single-microphone noise reduction method. The earphone can ensure that the sound signal of the user can be still well picked up when the earphone is worn incorrectly in the using process so as to ensure normal conversation of the user.
Description
Technical Field
The embodiment of the invention relates to the technical field of microphone noise reduction, in particular to a dual-microphone noise reduction earphone, a sound processing method and device thereof and a computer readable storage medium.
Background
With the development of science and technology, people have higher requirements on living quality, consumer electronics are more and more popularized, and the use frequency of earphones is higher and higher. When a user uses the earphone to communicate in a noisy environment, the noise of the surrounding environment can affect the communication quality, so that the other party cannot hear clearly the communication content, and the user experience and the communication efficiency are affected. To solve this problem, multi-microphone up-stream noise reduction has occurred, wherein the application of dual-microphone noise reduction headphones is common.
Based on the beam forming principle, the two microphones on the dual-microphone noise reduction earphone can acquire the voice sent by the user and the environmental noise, the distance between the two microphones is known, and because the distances between the two microphones and the mouth are different, the voice strength of the voice sent by the user acquired by the two microphones is different, and the environmental noise reaching the two microphones is basically the same, so that the algorithm can process the voice signal and the noise signal acquired by the two microphones, remove the noise part and reserve the voice part, and achieve a better conversation effect.
Since the beam forming principle has certain requirements on the consistency, position and distance of the two microphones, therefore, the earphone based on dual-microphone noise reduction requires that the included angle between the connection line of the two microphones and the mouth is within a preset range (a preset protection angle θ) (as shown in fig. 1) when the earphone is worn, that is, the microphones can only pick up the voice signal of the user and remove the noise when the earphone is worn correctly (the positions of the dual microphones and the mouth meet the design requirements), but, in actual use, when a user wears the headset, the two microphones may deviate from the protection angle range due to incorrect wearing mode, so that the voice signals picked up by the microphones are weakened, the voice quality is reduced, the signals are eliminated as noise, when the two microphones deviate from the protection angle range to a large extent, even the microphones cannot pick up the voice signal of the user completely, and the normal conversation of the user is influenced.
Therefore, how to provide a dual-microphone noise reduction earphone, a sound processing method thereof, an apparatus thereof, and a computer readable storage medium, which solve the above technical problems, is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The embodiment of the invention aims to provide a dual-microphone noise reduction earphone, a sound processing method and a device thereof, and a computer readable storage medium, which can ensure that a sound signal of a user can be still better picked up when the earphone is worn incorrectly in the using process so as to ensure normal conversation of the user.
In order to solve the above technical problem, an embodiment of the present invention provides a sound processing method for a dual-microphone noise reduction earphone, which is applied to the dual-microphone noise reduction earphone, where the dual-microphone noise reduction earphone includes two microphones disposed in a rear cavity of the earphone, and includes:
detecting whether the current wearing state of the earphone is standard wearing, wherein the standard wearing is a corresponding wearing state when the position relation between two microphones of the earphone and the mouth of a user meets the requirement of a protection angle;
if yes, controlling the two microphones to be in an open state, and performing noise reduction processing on the sound signals picked by the two microphones by adopting a double-microphone noise reduction method;
if not, controlling one of the two microphones to be in an open state, and carrying out noise reduction processing on the sound signals picked up by the microphones by adopting a single-microphone noise reduction method.
Optionally, before the detecting whether the current wearing state of the headset is standard wearing, the method further includes:
detecting whether the signal intensity of the current environment noise signal exceeds a first preset threshold value, if so, executing a step of detecting whether the current wearing state of the earphone is standard wearing, and if not, controlling one of the two microphones to be in an open state and not performing noise reduction processing on the sound signal picked up by the microphone.
Optionally, when it is detected that the current wearing state of the headset is non-standard wearing, the method further includes:
detecting whether a coupling between an ear muff of the headset and a user's head is present,
if so, judging whether the coupling mode is standard coupling, and if not, compensating the low-frequency part of the electric signal at the front end of the loudspeaker of the earphone;
if not, the gain of the loudspeaker of the earphone is adjusted, so that the loudspeaker works under the rated power.
Optionally, the process of detecting whether the earmuff of the headset is coupled with the head of the user is as follows:
acquiring pressure values which correspond to the pressure sensors arranged in the earmuffs one by one;
judging whether each pressure value is smaller than a preset pressure threshold value, if so, not coupling the earmuff of the earphone with the head of the user; and if not, coupling the earmuff of the earphone with the head of the user.
Optionally, the process of determining whether the coupling mode is the standard coupling is as follows:
and judging whether a pressure value smaller than the preset pressure threshold exists in each pressure value, if so, determining that the coupling mode is non-standard coupling, and if not, determining that the coupling mode is standard coupling.
Optionally, the process of detecting whether the current wearing state of the headset is standard wearing includes:
acquiring pressure values which correspond to the pressure sensors arranged in the earmuffs one by one;
and judging whether the current wearing state of the earphone is a standard wearing state or not according to the pressure values and the standard pressure ranges in one-to-one correspondence with the pressure sensors, wherein when the pressure value of each pressure sensor pair is in the corresponding standard pressure range, the current wearing state is standard wearing, and otherwise, the current wearing state is non-standard wearing.
Optionally, the method further includes:
and judging whether the signal intensity of the user voice signal picked up by the microphone is lower than a second preset threshold value or not, and if so, increasing the gain value of the microphone.
The embodiment of the invention correspondingly provides a sound processing device of a double-microphone noise reduction earphone, which is applied to the double-microphone noise reduction earphone, wherein the double-microphone noise reduction earphone comprises two microphones arranged in a rear cavity of the earphone, and the sound processing device comprises:
the first detection module is used for detecting whether the current wearing state of the earphone is standard wearing, wherein the standard wearing is a corresponding wearing state when the position relation between two microphones of the earphone and the mouth of a user meets the requirement of a protection angle, and if so, the first processing module is triggered; if not, triggering a second processing module;
the first processing module is used for controlling the two microphones to be in an open state and performing noise reduction processing on the sound signals picked by the two microphones by adopting a double-microphone noise reduction method;
the second processing module is configured to control one of the two microphones to be in an on state, and perform noise reduction processing on the sound signal picked up by the microphone by using a single-microphone noise reduction method.
The embodiment of the invention also provides a dual-microphone noise reduction earphone, which comprises two microphones arranged in a rear cavity of the earphone, a memory and a processor, wherein:
the memory for storing a computer program;
the processor is configured to implement the steps of the sound processing method of the dual-microphone noise reduction earphone when executing the computer program.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the sound processing method for a dual-microphone noise reduction earphone are implemented as described above.
The embodiment of the invention provides a double-microphone noise reduction earphone, a sound processing method and a device thereof, and a computer readable storage medium, wherein the double-microphone noise reduction earphone comprises two microphones arranged in a rear cavity of the earphone, and the method comprises the following steps: detecting whether the current wearing state of the earphone is standard wearing, wherein the standard wearing is a corresponding wearing state when the position relation between two microphones of the earphone and the mouth of a user meets the requirement of a protection angle; if yes, controlling the two microphones to be in an open state, and performing noise reduction processing on the sound signals picked up by the two microphones by adopting a double-microphone noise reduction method; if not, controlling one of the two microphones to be in an open state, and carrying out noise reduction processing on the sound signals picked up by the microphones by adopting a single-microphone noise reduction method.
It can be seen that the present application can determine whether the earphone is worn normally by detecting the current wearing state of the earphone, if the earphone is worn normally, that is, the position relationship between the two microphones and the mouth of the user meets the requirement of the protection angle of the earphone, at this time, both the two microphones of the earphone can be controlled to be in the on state, so that the earphone enters the working mode of noise reduction by the two microphones, if the earphone is worn non-normally, the relative positions of the two microphones of the earphone and the mouth of the user deviate from the range of the protection angle, and because the position relationship of the single microphone noise reduction to the microphone and the mouth does not have the requirement, when the current wearing state of the earphone is worn non-normally, one microphone in the earphone is controlled to be off, the other microphone is controlled to be in the on state, so that the earphone enters the working mode of noise reduction by the single microphone, the present application can ensure that the sound signal of the user can still be picked up well when, to ensure the normal conversation of the user.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of a protection angle of a conventional dual-microphone noise reduction earphone;
fig. 2 is a schematic flow chart of a sound processing method of a dual-microphone noise reduction earphone according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of another sound processing method for a dual-microphone noise reduction earphone according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a sound processing apparatus of a dual-microphone noise reduction earphone according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a dual-microphone noise reduction earphone, a sound processing method and device thereof and a computer readable storage medium, which can ensure that a sound signal of a user can still be better picked up when the earphone is worn incorrectly in the using process so as to ensure normal conversation of the user.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 2, fig. 2 is a flowchart illustrating a sound processing method of a dual-microphone noise reduction earphone according to an embodiment of the present invention.
The method is applied to a dual-microphone noise reduction earphone which comprises two microphones arranged in a rear cavity of the earphone, and comprises the following steps:
s110: detecting whether the current wearing state of the earphone is standard wearing, wherein the standard wearing is the corresponding wearing state when the position relation between two microphones of the earphone and the mouth of a user meets the requirement of a protection angle; if yes, the process goes to S120, and if not, the process goes to S130;
in the present application, when the earphone is worn, a state in which an included angle between a connection line between two microphones on the earphone and a mouth of a user and a connection line between the two microphones is within a protection angle range (that is, meets a protection angle requirement) is referred to as standard wearing, and another wearing state is referred to as non-standard wearing. Therefore, after the earphone is started, the current wearing state of the earphone can be detected, and the earphone is controlled to enter a corresponding noise reduction mode according to the specific wearing state, so that the working microphone can better pick up the sound signal of a user no matter what wearing condition is adopted.
S120: controlling the two microphones to be in an open state, and performing noise reduction processing on sound signals picked up by the two microphones by adopting a double-microphone noise reduction method;
specifically, when the current wearing state of the earphone is standard wearing, it is stated that the wearing manner meets the requirement of the protection angle, that is, at this time, both the microphones can better pick up the sound signal of the user, so that both the microphones are controlled to be in an open state, and the sound signal is subjected to noise reduction processing in a dual-microphone noise reduction manner. The method for reducing the noise of the double microphones is changed into a double-microphone noise reduction mode, namely when the earphone is in a standard wearing state, the earphone is directly controlled to enter the double-microphone noise reduction mode.
S130: and controlling one of the two microphones to be in an open state, and performing noise reduction processing on the sound signals picked up by the microphones by adopting a single-microphone noise reduction method.
In addition, when the current wearing state of the earphone is non-standard wearing, it is stated that the wearing manner does not meet the requirement of the protection angle of the earphone, and at this time, if the dual-microphone noise reduction mode is still adopted, the user sound signal picked up by the microphone is weakened, the sound quality is reduced, and even the user sound signal cannot be picked up, so in this application, when the earphone is non-standard wearing, the earphone is controlled to enter the single-microphone noise reduction mode, that is, one of the other two microphones is in an open state, the other microphone is in a closed state, and the single-microphone noise reduction method is adopted to perform noise reduction processing on the sound signal picked up by the microphone in the open state. It should be noted that, in the single-microphone noise reduction method, there is no requirement for the position relationship between the microphones and the mouths of users, even if the position relationship between the two microphones of the earphone and the mouths of users does not meet the requirement of the protection angle, when the single-microphone noise reduction is adopted (that is, one microphone is sampled to pick up a sound signal, and the noise reduction processing is performed on the picked-up sound by adopting the single-microphone noise reduction method), the microphone in the on state can still better pick up the sound signal of the users, and the strength and the tone quality of the picked-up sound signal of the users can be ensured, so as to ensure the smooth conversation of the users.
It can be seen that the present application can determine whether the earphone is worn normally by detecting the current wearing state of the earphone, if the earphone is worn normally, that is, the position relationship between the two microphones and the mouth of the user meets the requirement of the protection angle of the earphone, at this time, both the two microphones of the earphone can be controlled to be in the on state, so that the earphone enters the working mode of noise reduction by the two microphones, if the earphone is worn non-normally, the relative positions of the two microphones of the earphone and the mouth of the user deviate from the range of the protection angle, and because the position relationship of the single microphone noise reduction to the microphone and the mouth does not have the requirement, when the current wearing state of the earphone is worn non-normally, one microphone in the earphone is controlled to be off, the other microphone is controlled to be in the on state, so that the earphone enters the working mode of noise reduction by the single microphone, the present application can ensure that the sound signal of the user can still be picked up well when, to ensure the normal conversation of the user.
On the basis of the foregoing embodiments, the present invention provides another sound processing method for a dual-microphone noise reduction earphone, and this embodiment further describes and optimizes the technical solution, and specifically refers to fig. 3. The method specifically comprises the following steps:
s200: detecting whether the signal intensity of the current environmental noise signal exceeds a first preset threshold value, if so, executing S210; if not, entering S240;
it should be noted that, in order to improve the communication quality and prevent the opposite party with a relatively large noise from hearing the voice of the user when the user uses the earphone to communicate in a noisy environment, the noise reduction function needs to be turned on to perform noise reduction processing on the voice signal picked up by the microphone, but if the user uses the earphone to communicate in a quiet environment, the communication quality of the user is not affected due to the small noise, so the noise reduction function may not be turned on to save electric energy. Therefore, in this embodiment, after the earphone is turned on, both the two microphones are in an on state by default, a noise signal is extracted from the sound signals picked up by the two microphones, and it is determined whether the signal intensity of the current environmental noise exceeds a first preset threshold (e.g., 40dB), when the signal intensity exceeds the first preset threshold, it indicates that the user is in a noisy environment, and at this time, a noise reduction mode needs to be entered, and which noise reduction mode is specifically entered can be determined according to the current wearing state of the earphone obtained in S210; when the signal strength of the noise signal is lower than the first preset threshold, the user is considered to be in a quiet environment, and at this time, S240 may be executed to enable the headset to enter the single-microphone no-noise reduction mode in S240.
The first preset threshold value in the application may be a specific numerical value between 35 dB and 45dB, and the specific value may be determined according to an actual situation, which is not limited herein.
S210: detecting whether the current wearing state of the earphone is standard wearing, wherein the standard wearing is the corresponding wearing state when the position relation between two microphones of the earphone and the mouth of a user meets the requirement of a protection angle; if yes, the process goes to S220, and if not, the process goes to S230;
specifically, the state that the positional relationship between two microphones on the headset and the mouth of the user meets the requirement of the protection angle when the headset is worn is called standard wearing, and the other wearing state is called non-standard wearing. Therefore, the earphone can be detected according to the current wearing state of the earphone after being opened, and the earphone is controlled to enter the corresponding noise reduction mode according to the specific wearing state, so that the sound signals of a user can be well picked up by the working microphone no matter what wearing condition is adopted, the strength and the tone quality of the picked-up sound signals of the user can be ensured, and the normal conversation of the user is further ensured.
The above process of detecting whether the current wearing state of the earphone is standard wearing may specifically be:
acquiring pressure values which correspond to the pressure sensors arranged in the earmuffs one by one;
and judging whether the current wearing state of the earphone is a standard wearing state or not according to the pressure values and the standard pressure ranges in one-to-one correspondence with the pressure sensors, wherein when the pressure value of each pressure sensor pair is in the corresponding standard pressure range, the current wearing state is standard wearing, and otherwise, the current wearing state is non-standard wearing.
It should be noted that the current wearing state of the earphone can be detected by a plurality of pressure sensors disposed on the earmuff of the earphone and a preset standard pressure range, wherein the number of the pressure sensors may be 5, for example, the pressure sensors 1 to 5.
Specifically, the pressure ranges corresponding to the pressure sensors can be recorded in advance according to the condition that the earphone is worn in a standard mode, the standard pressure ranges of the pressure sensor pairs in the earmuffs when the earphone is worn in the standard mode are recorded, namely, the standard pressure ranges corresponding to the pressure sensors are determined according to the protection angle range of the earphone under the wearing state corresponding to the requirement of the protection angle, and the standard pressure ranges corresponding to the pressure sensors are used as the reference for subsequently judging whether the earphone is in the standard wearing state. For example, the standard pressure range of the pressure sensor 1 is a1 to b1, the standard pressure range of the pressure sensor 2 is a2 to b2, the standard pressure range of the pressure sensor 3 is a3 to b3, the standard pressure range of the pressure sensor 4 is a4 to b4, and the standard pressure range of the pressure sensor 5 is a5 to b 5.
After the headset is turned on, detection signals detected by the pressure sensors are acquired, pressure values corresponding to the pressure sensors one by one are acquired according to the detection signals corresponding to the pressure sensors, that is, pressure values corresponding to the pressure sensors, for example, the pressure value corresponding to the pressure sensor 1 is P1, the pressure value corresponding to the pressure sensor 2 is P2, the pressure sensors 3-P2, the pressure sensors 4-P4 and the pressure sensors 5-P5, in the current wearing state of the headset, if the pressure values corresponding to the pressure sensors are in corresponding standard pressure ranges (for example, P1 is between a1 and b1, P2 is between a2 and b2, P3 is between a3 and b3, P4 is between a4 and b4, and P5 is between a5 and b 5), the current wearing state is a standard wearing state, if one or more of the pressure values are not in the corresponding standard pressure ranges, the current wearing state is the state of non-standard wearing.
It should be noted that, because the pressure value that pressure sensor detected can be accurate the atress condition of reaction earmuff relevant position department, so the pressure value through a plurality of sensors can be accurate detect out the wearing state of earphone to pressure sensor has characteristics small, with low costs, can ensure the detection accuracy in this application, and is favorable to practicing thrift the cost.
Of course, it should be further noted that, in this embodiment, the present invention is not limited to detecting the current wearing state of the earphone by using the above method, and other methods may also be used to detect the wearing state of the earphone.
S220: controlling the two microphones to be in an open state, and performing noise reduction processing on sound signals picked up by the two microphones by adopting a double-microphone noise reduction method;
specifically, when the current wearing state of the earphone is standard wearing, it is stated that the wearing manner meets the requirement of the protection angle, that is, at this time, both the microphones can better pick up the sound signal of the user, so that both the microphones are controlled to be in an open state, and the sound signal is subjected to noise reduction processing in a dual-microphone noise reduction manner. The method for reducing the noise of the double microphones is changed into a double-microphone noise reduction mode, namely when the earphone is in a standard wearing state, the earphone is directly controlled to enter the double-microphone noise reduction mode.
S230: controlling one of the two microphones to be in an open state, and carrying out noise reduction processing on a sound signal picked up by the microphone by adopting a single-microphone noise reduction method;
in addition, when the current wearing state of the earphone is non-standard wearing, it is stated that the wearing manner does not meet the requirement of the protection angle of the earphone, and at this time, if the dual-microphone noise reduction mode is still adopted, the user sound signal picked up by the microphone is weakened, the sound quality is reduced, and even the user sound signal cannot be picked up, so in this application, when the earphone is non-standard wearing, the earphone is controlled to enter the single-microphone noise reduction mode, that is, one of the other two microphones is in an open state, the other microphone is in a closed state, and the single-microphone noise reduction method is adopted to perform noise reduction processing on the sound signal picked up by the microphone in the open state. It should be noted that, in the single-microphone noise reduction method, there is no requirement for the position relationship between the microphones and the mouth of the user, even if the position relationship between the two microphones of the earphone and the mouth of the user does not meet the requirement of the protection angle, when the single-microphone noise reduction is adopted, the microphone in the open state can still better pick up the voice signal of the user, so as to ensure the smooth conversation of the user.
S240: one of the two microphones is controlled to be in an open state, and the noise reduction processing is not carried out on the sound signals picked up by the microphones.
It can be understood that, when a user uses the headset to make a call in a quiet environment, noise reduction processing is not required to be performed on sound signals picked up by the microphones, so that one of the two microphones can be controlled to be in a closed state, the other microphone is controlled to be in an open state, and a noise reduction function is turned off, that is, the headset is controlled to enter a single-microphone noise reduction-free mode at the moment, so that the electric quantity of the headset is further saved on the basis of ensuring the call quality.
Further, in the present application, when it is detected that the current wearing state of the headset is non-standard wearing, the method may further include the following steps:
detecting whether a coupling between an ear muff of the headset and a user's head is present,
if so, judging whether the coupling mode is standard coupling, and if not, compensating the low-frequency part of the electric signal at the front end of the loudspeaker of the earphone;
if not, the gain of the loudspeaker of the earphone is adjusted, so that the loudspeaker works under the rated power.
It should be noted that, in this application, when the current wearing state of the earphone is non-standard wearing, it is further necessary to determine whether the earphone is worn on the ear, where it may be determined whether the earphone is worn on the ear by determining whether the earmuff is coupled with the head of the user, when the earmuff of the earphone is worn on the ear, it is determined that the earmuff of the earphone is coupled with the head of the user, and when the earphone is not worn on the ear, it is determined that the earmuff is not coupled with the head of the user, for example, at this time, the user hangs the earphone on the neck or places the earphone at another position.
For the situation that the earphone is coupled with the head of the user, whether the coupling between the earmuff and the head of the user is standard coupling needs to be judged, wherein the standard coupling in the application means that no leakage exists between the earmuff and the head of the user, namely, the earphone is well worn on the ear and no sound leakage occurs, and the corresponding non-standard coupling means that the coupling between the earmuff and the head of the user has leakage, namely, the earphone is not well worn on the ear and a sound leakage phenomenon exists.
For the case of standard coupling, no processing is required, i.e. the horn operates in the default mode and does not need to be compensated. In the case of non-standard coupling, since there is leakage in the coupling between the earmuff and the user's head, it is necessary to compensate for the low frequency, and specifically, the low frequency part of the electrical signal at the front end of the speaker can be compensated to ensure the quality of the call.
In addition, under the condition that no coupling exists between the earmuffs of the earphones and the head of the user, the loudspeaker of the earphones is far away from the ears, so that the sound heard by the user is reduced, at the moment, the outward playing mode can be started, the loudspeaker gain of the earphones can be improved, the loudspeaker works under the rated power, the sound played by the loudspeaker is increased, and therefore the user can hear the sound played by the loudspeaker, and the conversation quality is guaranteed.
It should be noted that when there is coupling between the earmuff of the earphone and the head of the user, that is, when the earphone is worn on the ear, the speaker end of the earphone usually meets the requirement of the maximum sound pressure level, and the working power of the speaker is lower than the rated power. In the application, when the earphone is not worn on the ear, the gain of the loudspeaker can be adjusted to enable the loudspeaker end to work under the rated power.
Further, the process of detecting whether the earmuff of the earphone is coupled with the head of the user in the present application may specifically be:
acquiring pressure values which correspond to the pressure sensors arranged in the earmuffs one by one;
judging whether each pressure value is smaller than a preset pressure threshold value, if so, not coupling the earmuff of the earphone with the head of the user; if not, the ear cap of the earphone is coupled with the head of the user.
Specifically, when the pressure values detected by all the pressure sensors in the pressure sensors are smaller than the preset pressure threshold N1, it indicates that the earphone is not worn on the ear, that is, the earmuff of the earphone is not coupled with the head of the user; when at least one pressure value is not less than the preset pressure threshold value N1, it indicates that the ear muff of the earphone is coupled with the head of the user. The specific value of the preset pressure threshold can be determined according to actual conditions, and the application is not particularly limited.
Correspondingly, the above-mentioned process of determining whether the coupling mode is the standard coupling may specifically be:
and judging whether the pressure values smaller than a preset pressure threshold exist in the pressure values, if so, determining that the coupling mode is non-standard coupling, and if not, determining that the coupling mode is standard coupling.
That is, when some of the pressure values detected by the pressure sensors reach the preset pressure threshold and the other pressure value is smaller than the preset pressure threshold, it is indicated that the coupling between the earmuff and the user head is leaked, and the coupling is a non-standard coupling.
Further, the method may further comprise the steps of:
and judging whether the signal intensity of the user voice signal picked up by the microphone is lower than a second preset threshold value or not, and if so, increasing the gain value of the microphone.
It should be noted that, in order to further ensure the call quality, the voice signal picked up by the microphone currently in the on state may be processed during the call of the user, and then the user voice signal is extracted, and if the signal intensity of the user voice signal is lower than the second preset threshold, it indicates that the speaking voice of the user is low, and at this time, the microphone gain may be increased to increase the signal intensity of the picked up user voice signal, so that the opposite user of the call can clearly hear the voice of the speaking user. The specific value of the second preset threshold may be determined according to actual conditions, and the application is not particularly limited.
On the basis of the foregoing embodiments, the present invention provides a sound processing apparatus for a dual-microphone noise reduction earphone, which is specifically shown in fig. 4. The device is applied to the earphone of making an uproar falls in two microphones, and the earphone of making an uproar falls in two microphones including setting up two microphones in the rear cavity of earphone, and the device includes:
the first detection module 41 is configured to detect whether a current wearing state of the earphone is standard wearing, where the standard wearing is a corresponding wearing state when a positional relationship between two microphones of the earphone and a mouth of a user meets a requirement of a protection angle, and if so, the first processing module 42 is triggered; if not, the second processing module 43 is triggered;
the first processing module 42 is configured to control both the two microphones to be in an on state, and perform noise reduction processing on the sound signals picked up by the two microphones by using a dual-microphone noise reduction method;
and the second processing module 43 is configured to control one of the two microphones to be in an on state, and perform noise reduction processing on the sound signal picked up by the microphone by using a single-microphone noise reduction method.
Further, the apparatus further comprises:
the second detection module is used for detecting whether the signal intensity of the current environmental noise signal exceeds a first preset threshold value or not, and if so, the first detection module is triggered; if not, triggering a third processing module;
and the third processing module is used for controlling one of the two microphones to be in an open state and not performing noise reduction processing on the sound signals picked up by the microphones.
Further, the apparatus further comprises a third detection module, wherein:
the first detection module is also used for triggering the third detection module when the current wearing state of the earphone is detected to be non-standard wearing; :
the third detection module is used for detecting whether the earmuff of the earphone is coupled with the head of the user or not, and if so, the first judgment module is triggered; if not, triggering the adjusting module;
the first judgment module is used for judging whether the coupling mode is standard coupling or not, and if not, compensating the low-frequency part of the electric signal at the front end of the loudspeaker of the earphone;
and the adjusting module is used for adjusting the loudspeaker gain of the earphone so as to enable the loudspeaker to work under the rated power.
It should be noted that the sound processing apparatus of the dual-microphone noise reduction earphone provided in the present embodiment has the same beneficial effects as the sound processing method of the dual-microphone noise reduction earphone provided in the above method embodiment. In addition, for a specific description of the sound processing method of the dual-microphone noise reduction earphone in this embodiment, please refer to the above method embodiment, which is not described herein again.
On the basis of the above embodiment, the embodiment of the invention also provides a dual-microphone noise reduction earphone. This earphone is including setting up two microphones, memory and the treater in the intracavity behind the earphone, wherein:
a memory for storing a computer program;
and a processor for implementing the steps of the sound processing method of the dual-microphone noise reduction earphone when executing the computer program.
For example, the processor in this embodiment is configured to detect whether a current wearing state of the earphone is standard wearing, where the standard wearing is a wearing state corresponding to a situation where a positional relationship between two microphones of the earphone and a mouth of a user meets a requirement of a protection angle; if yes, controlling the two microphones to be in an open state, and performing noise reduction processing on the sound signals picked up by the two microphones by adopting a double-microphone noise reduction method; if not, controlling one of the two microphones to be in an open state, and carrying out noise reduction processing on the sound signals picked up by the microphones by adopting a single-microphone noise reduction method.
It should be noted that, of course, the dual-microphone noise reduction earphone in the present application further includes a speaker and a battery, and in addition, may further include a plurality of pressure sensors disposed inside the earmuff, so that the processor detects the current wearing state of the earphone according to the pressure values detected by the respective pressure sensors and the standard pressure ranges corresponding to the respective pressure sensors one to one.
On the basis of the foregoing embodiments, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the sound processing method of the above-mentioned dual-microphone noise reduction earphone.
The computer-readable storage medium may include: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A sound processing method of a double-microphone noise reduction earphone is applied to the double-microphone noise reduction earphone, the double-microphone noise reduction earphone comprises two microphones arranged in a back cavity of the earphone, and the method is characterized by comprising the following steps:
detecting whether the current wearing state of the earphone is standard wearing, wherein the standard wearing is a corresponding wearing state when the position relation between two microphones of the earphone and the mouth of a user meets the requirement of a protection angle;
if yes, controlling the two microphones to be in an open state, and performing noise reduction processing on sound signals picked by the two microphones by adopting a double-microphone noise reduction method;
if not, controlling one of the two microphones to be in an open state, and performing noise reduction processing on the sound signals picked up by the microphones by adopting a single-microphone noise reduction method;
when detecting that the current wearing state of the earphone is non-standard wearing, the method further comprises the following steps:
detecting whether a coupling between an ear muff of the headset and a user's head is present,
if the ear cap is coupled with the head of the user, judging whether the coupling mode is standard coupling or not, and if the coupling mode is non-standard coupling, compensating the low-frequency part of the electric signal at the front end of the loudspeaker of the earphone;
if the ear cap is not coupled with the head of the user, the gain of the loudspeaker of the earphone is adjusted, so that the loudspeaker works under the rated power.
2. The method of claim 1, wherein prior to the detecting whether the current wearing state of the headset is standard wearing, the method further comprises:
detecting whether the signal intensity of the current environment noise signal exceeds a first preset threshold value, if so, executing a step of detecting whether the current wearing state of the earphone is standard wearing, and if not, controlling one of the two microphones to be in an open state and not performing noise reduction processing on the sound signal picked up by the microphone.
3. The method of claim 1, wherein the detecting whether the ear muffs of the headset are coupled with the head of the user is:
acquiring pressure values corresponding to the pressure sensors arranged in the earmuffs one by one;
judging whether each pressure value is smaller than a preset pressure threshold value, if so, not coupling the earmuff of the earphone with the head of the user; and if not, coupling the earmuff of the earphone with the head of the user.
4. The method as claimed in claim 3, wherein the step of determining whether the coupling is a standard coupling comprises:
and judging whether a pressure value smaller than the preset pressure threshold exists in each pressure value, if so, determining that the coupling mode is non-standard coupling, and if not, determining that the coupling mode is standard coupling.
5. The method as claimed in claim 1, wherein the step of detecting whether the current wearing state of the headset is standard wearing comprises:
acquiring pressure values corresponding to the pressure sensors arranged in the earmuffs one by one;
and judging whether the current wearing state of the earphone is a standard wearing state or not according to the pressure values and the standard pressure ranges in one-to-one correspondence with the pressure sensors, wherein when the pressure value of each pressure sensor pair is in the corresponding standard pressure range, the current wearing state is standard wearing, and otherwise, the current wearing state is non-standard wearing.
6. The method of processing sound for a dual microphone noise reduction earphone of claim 1, wherein the method further comprises:
and judging whether the signal intensity of the user voice signal picked up by the microphone is lower than a second preset threshold value or not, and if so, increasing the gain value of the microphone.
7. The utility model provides a two microphones fall earphone's sound processing apparatus that makes an uproar, is applied to two microphones and falls earphone of making an uproar, two microphones that fall earphone including setting up in the back intracavity of earphone, its characterized in that includes:
the first detection module is used for detecting whether the current wearing state of the earphone is standard wearing, wherein the standard wearing is a corresponding wearing state when the position relation between two microphones of the earphone and the mouth of a user meets the requirement of a protection angle, and if so, the first processing module is triggered; if not, triggering a second processing module;
the first processing module is used for controlling the two microphones to be in an open state and performing noise reduction processing on sound signals picked up by the two microphones by adopting a double-microphone noise reduction method;
the second processing module is configured to control one of the two microphones to be in an on state, and perform noise reduction processing on a sound signal picked up by the microphone by using a single-microphone noise reduction method;
still include the third detection module, wherein:
the first detection module is further used for triggering the third detection module when the current wearing state of the earphone is detected to be non-standard wearing;
the third detection module is used for detecting whether the earmuff of the earphone is coupled with the head of the user or not, and if so, the first judgment module is triggered; if not, triggering the adjusting module;
the first judging module is used for judging whether the coupling mode is standard coupling or not, and if not, compensating the low-frequency part of the electric signal at the front end of the loudspeaker of the earphone;
and the adjusting module is used for adjusting the loudspeaker gain of the earphone so as to enable the loudspeaker to work under the rated power.
8. The utility model provides a two microphones earphone of making an uproar falls, its characterized in that, including setting up two microphones, memory and the processor in the earphone rear chamber, wherein:
the memory for storing a computer program;
the processor, when executing the computer program, is configured to implement the steps of the sound processing method of the dual-microphone noise reduction earphone according to any one of claims 1 to 6.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method for sound processing of a dual-microphone noise-reducing headphone according to any one of claims 1 to 6.
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| CN110839190B (en) * | 2019-11-15 | 2022-01-07 | 歌尔股份有限公司 | Earphone wearing detection method and device, earphone and readable storage medium |
| CN110853665B (en) * | 2019-11-28 | 2022-04-26 | 歌尔科技有限公司 | Method, system and equipment for reducing noise of digital microphone and computer storage medium |
| CN110972014B (en) * | 2019-12-11 | 2022-03-01 | 歌尔智能科技有限公司 | Parameter adjustment method and device for active noise reduction earphone and wireless earphone |
| CN111276150B (en) * | 2020-01-20 | 2023-07-04 | 杭州耳青聪科技有限公司 | Intelligent voice-to-text and simultaneous interpretation system based on microphone array |
| CN111800712B (en) * | 2020-06-30 | 2022-05-31 | 联想(北京)有限公司 | Audio processing method and electronic equipment |
| CN111787452B (en) * | 2020-07-29 | 2022-07-22 | 歌尔科技有限公司 | TWS earphone, TWS earphone control method, TWS earphone control device and computer readable storage medium |
| CN112770214B (en) * | 2021-01-28 | 2022-11-11 | 歌尔科技有限公司 | Earphone control method and device and earphone |
| CN113038329A (en) * | 2021-03-22 | 2021-06-25 | 深圳市科奈信科技有限公司 | Earphone radio control method, device and storage medium |
| CN112804612B (en) * | 2021-03-25 | 2022-06-21 | 潍坊歌尔电子有限公司 | Earphone control method, earphone control device, earphone and computer readable storage medium |
| CN113473280B (en) * | 2021-05-17 | 2022-11-29 | 安克创新科技股份有限公司 | Earphone and wearing state detection method thereof |
| CN113395628B (en) * | 2021-06-18 | 2023-04-14 | RealMe重庆移动通信有限公司 | Earphone control method and device, electronic equipment and computer readable storage medium |
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