CN112118506B - Earphone noise reduction mode control method, system, equipment and storage medium - Google Patents
Earphone noise reduction mode control method, system, equipment and storage medium Download PDFInfo
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- CN112118506B CN112118506B CN202011055090.6A CN202011055090A CN112118506B CN 112118506 B CN112118506 B CN 112118506B CN 202011055090 A CN202011055090 A CN 202011055090A CN 112118506 B CN112118506 B CN 112118506B
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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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- 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
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
- H04R2430/01—Aspects of volume control, not necessarily automatic, in sound systems
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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
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/01—Hearing devices using active noise cancellation
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Abstract
The invention provides a method, a system, equipment and a storage medium for controlling a noise reduction mode of an earphone, wherein the method comprises the following steps: the noise reduction mode of the earphone is in an open state, and environmental sound signals are collected; judging whether the amplitude deviation value of the environmental sound signal is larger than a first preset threshold value or not, if so, closing the noise reduction mode of the earphone; collecting the environment sound signal, judging whether the amplitude deviation value of the environment sound signal is smaller than a second preset threshold value, and if so, executing a noise reduction mode of opening the earphone; if not, keeping the noise reduction mode of the earphone in a closed state; the first preset threshold is greater than the second preset threshold; the method and the device enable the user to pay attention to the abnormal sounds of the surrounding environment in time, and can avoid accidents caused by the fact that the sounds of the external environment cannot be known in time.
Description
Technical Field
The present invention relates to the field of noise reduction technologies, and in particular, to a method, a system, a device, and a storage medium for controlling a noise reduction mode of an earphone.
Background
More and more users use noise reduction earphones in life, that is, earphones with a noise reduction mode play audio. However, since the noise reduction earphone reduces the external noise, when the user wears the noise reduction earphone to play the audio, the user hardly notices the external sound, which may cause many situations that are not good for the user's safety. For example, when a user wears a noise reduction earphone to listen to songs, if a car whistles around the user but the user does not hear the noise reduction earphone, traffic accidents may occur.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a method, a system, equipment and a storage medium for controlling a noise reduction mode of an earphone, which solve the problem that in the related art, when a user uses a noise reduction earphone, accidents may occur due to the fact that dangerous warning sounds in external environment sounds cannot be known in time.
In order to achieve the above object, the present invention provides a method for controlling a noise reduction mode of an earphone, the method comprising the steps of:
s10, enabling a noise reduction mode of the earphone to be in an open state, and collecting an environmental sound signal;
s20, judging whether the amplitude deviation value of the environmental sound signal is larger than a first preset threshold value or not, if so, executing a step S30; if not, returning to the step S10;
s30, closing the noise reduction mode of the earphone;
s40, collecting the environmental sound signal, judging whether the amplitude deviation value of the environmental sound signal is smaller than a second preset threshold value, and if so, executing a step S50; if not, executing step S60; the first preset threshold is greater than the second preset threshold;
s50, opening a noise reduction mode of the earphone;
and S60, keeping the noise reduction mode of the earphone in a closed state, and returning to the step S40.
Preferably, the amplitude deviation value is obtained according to a first amplitude value corresponding to the environmental sound signal at the current time and an average value of the first amplitude values of the environmental sound signals x seconds before the current time; x is a predetermined parameter, and x is a positive number.
Preferably, the amplitude deviation value of the ambient sound signal is calculated according to the following formula:
D(t)＝|[A s (t)-A avg (x)]|/[A avg (x)]
wherein D (t) represents an amplitude deviation value of the ambient sound signal, A s (t) represents a first amplitude value, A, corresponding to the ambient sound signal at the current time instant avg (x) An average value of the first amplitude value representing the ambient sound signal x seconds before the current time.
Preferably, the first amplitude value corresponding to the current-time environmental sound signal is calculated according to the following formula:
wherein t represents the current time, N represents the number of sampling points in the current time, A p (r) denotes the r-th sampleThe magnitude value of the dot.
Preferably, the average value of the first amplitude value of the ambient sound signal x seconds before the current time is calculated according to the following formula:
wherein A is s (m) represents a first amplitude value corresponding to the ambient sound signal at the m-th time.
Preferably, step S70 is included between step S30 and step S40:
when the signal of speaking of the earphone wearer is collected, the earphone wearer is indicated to speak, and the step S30 is returned; if not, executing step S40.
Preferably, the step S30 further includes: reducing the output volume of the earphone from a first volume value to a second volume value;
the step S50 further includes:
and restoring the output volume of the earphone to the first volume value.
Preferably, the first preset threshold is 2.
Preferably, the second preset threshold is 0.5.
The invention also provides a system for controlling the noise reduction mode of the earphone, which is used for realizing the method for controlling the noise reduction mode of the earphone and comprises the following steps:
the state acquisition module is used for acquiring the working state of the noise reduction mode of the earphone and an environmental sound signal;
the first judgment module is used for judging whether the amplitude deviation value of the environmental sound signal is larger than a first preset threshold value or not, and if so, sending a noise reduction closing instruction to the noise reduction closing module;
the noise reduction closing module is used for closing the noise reduction mode of the earphone after receiving the noise reduction closing instruction;
the second judgment module continues to collect the environmental sound signal and judges whether the amplitude deviation value of the environmental sound signal is smaller than a second preset threshold value, and if yes, a noise reduction starting instruction is sent to the noise reduction starting module; if not, the noise reduction is kept closed;
and the noise reduction starting module is used for starting the noise reduction mode of the earphone after receiving the noise reduction starting instruction.
Preferably, the system further comprises a third judging module, configured to judge whether the acquired signal is a signal of speaking of the earphone wearer; if yes, sending a denoising closing instruction to the denoising closing module.
The present invention also provides a noise reduction mode control device for an earphone, comprising:
a processor;
a memory having stored therein executable instructions of the processor;
wherein the processor is configured to perform the steps of any of the above-described headphone noise reduction mode control methods via execution of the executable instructions.
The present invention also provides a computer-readable storage medium storing a program which, when executed by a processor, implements the steps of any of the above-described headphone noise reduction mode control methods.
Compared with the prior art, the invention has the following advantages and prominent effects:
the method, the system, the equipment and the storage medium for controlling the noise reduction mode of the earphone collect environmental sound signals, and when the amplitude deviation value is judged to be larger than a first preset threshold value, namely high noise exists in the environment, the noise reduction mode is closed; the user can pay attention to the abnormal sound of the surrounding environment in time, and accidents caused by the fact that the external environment sound cannot be known in time can be avoided. And after the ambient sound is stable, the earphone is controlled to resume the starting of the noise reduction mode, the user does not need to manually start the noise reduction again, and better use experience is provided for the user.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a noise reduction mode control method for an earphone according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a noise reduction mode control method for an earphone according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a noise reduction mode control system of an earphone according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a noise reduction mode control device of an earphone according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computer-readable storage medium according to an embodiment of the disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus, a repetitive description thereof will be omitted.
As shown in fig. 1, an embodiment of the present invention discloses a method for controlling a noise reduction mode of an earphone, including the following steps:
and S10, enabling the noise reduction mode of the earphone to be in an open state, and collecting an ambient sound signal. That is, the working state of the noise reduction mode of the earphone and the ambient sound signal are respectively collected, and step S20 is executed only when the noise reduction mode of the earphone is determined to be turned on.
And S20, judging whether the amplitude deviation value of the environment sound signal is greater than a first preset threshold value. If yes, go to step S30. If not, the process returns to step S10. Specifically, when the amplitude deviation value of the collected environment sound signal is greater than a first preset threshold, it indicates that high noise occurs in the surrounding environment, such as a dangerous warning sound in the external environment sound or a sudden call of a friend. At this time, the noise reduction mode needs to be turned off, so that the user can pay attention to the abnormal sound of the surrounding environment in time.
The present invention is not limited to the determination method of high noise of the environmental sound signal. For example, the magnitude relation between the difference between the amplitude of the ambient sound signal at the current moment and the average value of the amplitudes of the ambient sound signals of the previous x seconds and a preset threshold value can be compared; the difference value may be compared with the average value of the previous x seconds of the ambient sound signal amplitude, and a preset threshold value may be used.
And S30, closing the noise reduction mode of the earphone. Namely, the noise reduction mode of the earphone is switched from the on state to the off state. Therefore, the user can hear the external sound more clearly and respond in time. The user is prevented from possibly having an accident because the dangerous warning tone is not heard in time.
And S40, continuously collecting the environmental sound signal, and judging whether the amplitude deviation value of the environmental sound signal is smaller than a second preset threshold value. If yes, go to step S50. If not, step S60 is executed. For example, if the environmental sound signal is collected at the current time in step S10, step S40 determines that the environmental sound signal continues to be collected in a period subsequent to the current time.
If the amplitude deviation value of the continuously collected environmental sound signal is smaller than a second preset threshold, it indicates that the environmental sound signal reaches a steady state, for example: after the user moves from a quieter environment to a noisy environment, the high noise achieves a continuous state; or, after the sudden dangerous warning sound (high noise) stops, the surrounding environment has no other danger and the collected environment sound signal is reduced to a stable state.
The amplitude deviation values are obtained according to the first amplitude value corresponding to the environmental sound signal at the current moment and the average value of the first amplitude values of the environmental sound signal x seconds before the current moment. Wherein x is a preset parameter and x is a positive number. The first preset threshold is greater than the second preset threshold.
Specifically, the amplitude deviation value of the above-described ambient sound signal is calculated according to the following formula:
D(t)＝|[A s (t)-A avg (x)]|/[A avg (x)]
where D (t) represents the amplitude deviation value of the ambient sound signal at the current time t, A s (t) represents the current time environmentFirst amplitude value corresponding to the sound signal, A avg (x) An average value of the first amplitude value representing the ambient sound signal x seconds before the current time. For example, the current time is 20 seconds, and x may take a value of 10. Then A avg (x) It means the average value of the first amplitude values of the ambient sound signal 10 seconds before the current time, that is, the average value of the first amplitude values of the ambient sound signal from the 10 th to 19 th seconds. A. The s (t) represents the first amplitude value corresponding to the 20 th second ambient sound signal.
In this embodiment, the first amplitude value a corresponding to the current environmental sound signal s (t) is calculated according to the following formula:
where t represents the current time. For example, when t is 20, A s (t) represents the first amplitude value corresponding to the ambient sound signal collected at the 20 th second, i.e. equal to the sum of the absolute values of the amplitudes of the ambient sound signals collected at all the sampling points in the 20 th second. N represents the number of sampling points at the current moment, r represents the sampling points, A p And (r) represents the amplitude value of the environmental sound signal collected by the r-th sampling point in the current moment. N is a predetermined parameter, in this embodiment, N is 44100, and the value of N is not limited in this application.
In this embodiment, the average value a of the first amplitude value of the environmental sound signal x seconds before the current time is described above avg (x) Calculated according to the following formula:
wherein A is s (m) represents a first amplitude value corresponding to the ambient sound signal at the m-th time. Illustratively, when t is 20, x is 10,
it represents the sum of the amplitudes of the ambient sound signals collected from the 10 th to 19 th seconds。
And S50, opening a noise reduction mode of the earphone. That is, when it is determined that the high noise reaches a continuous state, that is, the amplitude deviation value of the ambient sound signal is smaller than a second preset threshold, that is, in an environment where external noise is stable, the safety of the user itself is confirmed. Noise reduction may be performed again to isolate external noise. Namely, the noise reduction mode of the earphone is switched from the off state to the on state. Therefore, the user does not need to manually turn on the noise reduction device again, user operation is saved, and the earphone using experience of the user is improved. Of course, the user may also manually turn on the noise reduction mode again.
S60, the noise reduction mode of the headphone is kept off, and the process returns to step S40.
In this embodiment, through a large number of experimental tests, the first preset threshold is set to be 2, and when the second preset threshold is set to be 0.5, the first preset threshold is reasonable, so that the user can fully and timely hear the dangerous warning sound in the sound of the surrounding environment. This is not limited by the present application.
As shown in fig. 2, in another embodiment of the present invention, on the basis of the above embodiment, the step S30 further includes: the output volume of the earphone is reduced from the first volume value to the second volume value. Therefore, the user can hear the external environment sound more clearly, the method is particularly suitable for scenes in which the user is called by friends and needs to talk, the user can talk conveniently without manually turning down the volume, and the user can hear the sound of the other party.
The step S50 further includes: and restoring the output volume of the earphone to the first volume value. That is, the user may use the earphone to continue listening to the song, so that the output volume of the earphone is recovered, the volume can be recovered according to the song listening habit of the user, and the use experience is better.
As shown in fig. 2, in this embodiment, a step S70 is further included between step S30 and step S40:
and when the acquired signal is the signal of the earphone wearer speaking, returning to the step S30, otherwise, executing the step S40. In specific implementation, it may be determined that the acquired signal is the signal of the earphone wearer speaking in a manner that the earphone wearer is speaking through bone voiceprint signal recognition and/or dual microphone beamforming, and then the step S30 is returned, that is, the noise reduction mode of the earphone is kept in the off state. If not, executing step S40. Specifically, when the user is speaking, the user may be talking with a friend, and the noise reduction mode of the earphone is kept in the off state, so that the user can hear the voice of the other party more clearly, and the user experience is improved.
As shown in fig. 3, the embodiment of the present invention further discloses a system 3 for controlling a noise reduction mode of an earphone, the system comprising:
and the state acquisition module 31 is used for acquiring the working state of the noise reduction mode of the earphone and an environmental sound signal.
The first determining module 32 is configured to determine whether the amplitude deviation value of the ambient sound signal is greater than a first preset threshold when the earphone is in the open noise reduction mode. If so, sending a noise reduction closing instruction to the noise reduction closing module to inform the noise reduction closing module to start executing internal operation so as to close the noise reduction mode of the earphone. If not, a cyclic operation instruction is sent to the state acquisition module, namely the state acquisition module is informed to execute the internal operation again.
And the noise reduction closing module 33 is configured to close the noise reduction mode of the earphone after receiving the noise reduction closing instruction.
The second determining module 34 is configured to determine whether the amplitude deviation value of the ambient sound signal is smaller than a second preset threshold when the earphone is in the noise reduction off mode. If yes, sending a noise reduction starting instruction to a noise reduction starting module to inform the noise reduction starting module to start executing internal operation so as to start the earphone noise reduction mode. If not, the noise reduction is kept closed.
And the noise reduction starting module 35 is configured to turn on the noise reduction mode of the earphone after receiving the noise reduction starting instruction.
It is understood that the noise reduction mode control system of the headphone of the present invention further includes other existing functional modules that support the operation of the noise reduction mode control system of the headphone. The noise reduction mode control system of the headphone shown in fig. 3 is only an example, and should not bring any limitation to the function and the range of use of the embodiment of the present invention.
The noise reduction mode control system of the earphone in this embodiment is used to implement the above noise reduction mode control method of the earphone, so for the specific implementation steps of the noise reduction mode control system of the earphone, reference may be made to the above description of the noise reduction mode control method of the earphone, and details are not repeated here.
The embodiment of the invention also discloses a device for controlling the noise reduction mode of the earphone, which comprises a processor and a memory, wherein the memory stores the executable instruction of the processor; the processor is configured to perform the steps in the above-described headphone noise reduction mode control method via execution of executable instructions. Fig. 4 is a schematic structural diagram of a noise reduction mode control device for a headset according to the present disclosure. An electronic device 600 according to this embodiment of the invention is described below with reference to fig. 4. The electronic device 600 shown in fig. 4 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 4, the electronic device 600 is embodied in the form of a general purpose computing device. The components of the electronic device 600 may include, but are not limited to: at least one processing unit 610, at least one memory unit 620, a bus 630 connecting the different platform components (including the memory unit 620 and the processing unit 610), a display unit 640, etc.
Wherein the memory unit stores program code which may be executed by the processing unit 610 such that the processing unit 610 performs the steps according to various exemplary embodiments of the present invention as described in the above-mentioned headphone noise reduction mode control method section of the present specification. For example, processing unit 610 may perform the steps as shown in fig. 1.
The storage unit 620 may include readable media in the form of volatile memory units, such as a random access memory unit (RAM) 6201 and/or a cache memory unit 6202, and may further include a read-only memory unit (ROM) 6203.
The memory unit 620 may also include a program/utility 6204 having a set (at least one) of program modules 6205, such program modules 6205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
The electronic device 600 may also communicate with one or more external devices 700 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 600, and/or with any device (e.g., router, modem, etc.) that enables the electronic device 600 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interface 650. Also, the electronic device 600 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) via the network adapter 660. The network adapter 660 may communicate with other modules of the electronic device 600 via the bus 630. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 600, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage platforms, to name a few.
The invention also discloses a computer readable storage medium for storing a program, which when executed implements the steps in the above-mentioned earphone noise reduction mode control method. In some possible embodiments, the various aspects of the present invention may also be implemented in the form of a program product comprising program code for causing a terminal device to perform the steps according to various exemplary embodiments of the present invention described in the above-mentioned headphone noise reduction mode control methods of this specification, when the program product is run on the terminal device.
As described above, the program of the computer-readable storage medium of this embodiment, when executed, collects an environmental sound signal, and when it is determined that there is high noise in the environment, turns off the noise reduction mode; the user can pay attention to abnormal sounds of the surrounding environment in time, and accidents caused by the fact that the sounds of the external environment cannot be known in time can be avoided. And after the ambient sound is stable, the earphone is controlled to resume the starting of the noise reduction mode, the user does not need to manually start the noise reduction again, and better use experience is provided for the user.
Fig. 5 is a schematic structural diagram of a computer-readable storage medium of the present invention. Referring to fig. 5, a program product 800 for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
A computer readable storage medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable storage medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In situations involving remote computing devices, the remote computing devices may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to external computing devices (e.g., through the internet using an internet service provider).
The method, the system, the equipment and the storage medium for controlling the noise reduction mode of the earphone provided by the embodiment of the invention are used for collecting environmental sound signals, and when the amplitude deviation value is judged to be greater than a first preset threshold value, namely high noise exists in the environment, the noise reduction mode is closed and the output volume of the earphone is reduced; the user can pay attention to the abnormal sound of the surrounding environment in time, and accidents caused by the fact that the external environment sound cannot be known in time can be avoided. And after the ambient sound is stable, the earphone is controlled to resume the starting of the noise reduction mode and resume the previous output volume, so that the user does not need to manually start the noise reduction again, and better use experience is provided for the user.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (9)
1. A method for controlling a noise reduction mode of an earphone is characterized by comprising the following steps:
s10, enabling a noise reduction mode of the earphone to be in an open state, and collecting an environmental sound signal;
s20, judging whether the amplitude deviation value of the environmental sound signal is larger than a first preset threshold value, if so, executing a step S30; if not, returning to the step S10;
s30, closing the noise reduction mode of the earphone;
s40, collecting the environmental sound signal, judging whether the amplitude deviation value of the environmental sound signal is smaller than a second preset threshold value, and if so, executing a step S50; if not, executing step S60; the first preset threshold is greater than the second preset threshold;
s50, opening a noise reduction mode of the earphone;
s60, keeping the noise reduction mode of the earphone in a closed state, and returning to the step S40;
the step S70 is included between the step S30 and the step S40:
when the signal of speaking of the earphone wearer is collected, returning to the step S30; otherwise, executing step S40;
the amplitude deviation value of the ambient sound signal is calculated according to the following formula:
D(t)＝|[A s (t)-A avg (x)]|/[A avg (x)]
wherein D (t) represents an amplitude deviation value of the ambient sound signal, A s (t) represents a first amplitude value, A, corresponding to the ambient sound signal at the present moment avg (x) An average value of the first amplitude value representing the ambient sound signal x seconds before the current time.
2. The headphone noise reduction mode control method according to claim 1, wherein the first amplitude value corresponding to the ambient sound signal at the current time is calculated according to the following formula:
wherein t represents the current time, N represents the number of sampling points in the current time, A p (r) represents the amplitude value of the r-th sampling point.
3. The headphone noise reduction mode control method according to claim 1, wherein the average value of the first amplitude value of the ambient sound signal x seconds before the current time is calculated according to the following formula:
wherein A is s (m) represents a first amplitude value corresponding to the ambient sound signal at the m-th time.
4. The headphone noise reduction mode control method according to claim 1, wherein the step S30 further comprises: reducing the output volume of the earphone from a first volume value to a second volume value;
the step S50 further includes:
and restoring the output volume of the earphone to the first volume value.
5. The headphone noise reduction mode control method according to claim 1, wherein the first preset threshold is 2.
6. The headphone noise reduction mode control method according to claim 1, wherein the second preset threshold is 0.5.
7. A headphone noise reduction mode control system for implementing the headphone noise reduction mode control method according to any one of claims 1 to 6, the system comprising:
the state acquisition module is used for acquiring the working state of the noise reduction mode of the earphone and an environmental sound signal;
the first judgment module is used for judging whether the amplitude deviation value of the environmental sound signal is larger than a first preset threshold value or not, and if so, sending a noise reduction closing instruction to the noise reduction closing module;
the noise reduction closing module is used for closing the noise reduction mode of the earphone after receiving a noise reduction closing instruction;
the second judgment module is used for judging whether the amplitude deviation value of the environmental sound signal is smaller than a second preset threshold value or not, and if so, sending a noise reduction starting instruction to the noise reduction starting module; if not, the noise reduction is kept closed;
the noise reduction starting module is used for starting a noise reduction mode of the earphone after receiving a noise reduction starting instruction;
the system also comprises a third judging module used for judging whether the acquired signal is a signal for the earphone wearer to speak; if yes, sending a denoising closing instruction to the denoising closing module.
8. A headphone noise reduction mode control device, comprising:
a processor;
a memory having stored therein executable instructions of the processor;
wherein the processor is configured to perform the steps of the headphone noise reduction mode control method of any of claims 1 to 6 via execution of the executable instructions.
9. A computer-readable storage medium storing a program, wherein the program when executed by a processor implements the steps of the headphone noise reduction mode control method according to any one of claims 1 to 6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011055090.6A CN112118506B (en) | 2020-09-29 | 2020-09-29 | Earphone noise reduction mode control method, system, equipment and storage medium |
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| CN115134708B (en) * | 2022-06-30 | 2024-07-30 | 歌尔股份有限公司 | Earphone mode switching method and device, electronic equipment and readable storage medium |
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| JP5593851B2 (en) * | 2010-06-01 | 2014-09-24 | ソニー株式会社 | Audio signal processing apparatus, audio signal processing method, and program |
| US9761247B2 (en) * | 2013-01-31 | 2017-09-12 | Microsoft Technology Licensing, Llc | Prosodic and lexical addressee detection |
| WO2016119106A1 (en) * | 2015-01-26 | 2016-08-04 | 深圳市冠旭电子有限公司 | Earphone noise reduction method and apparatus |
| WO2016119108A1 (en) * | 2015-01-26 | 2016-08-04 | 深圳市冠旭电子有限公司 | Earphone noise reduction control method and apparatus |
| WO2017120956A1 (en) * | 2016-01-17 | 2017-07-20 | 谢文 | Method of giving alarm during headphone usage, and headphones for giving alarm |
| CN209642920U (en) * | 2018-11-30 | 2019-11-15 | 陕西烽火宏声科技有限责任公司 | Environment sensing noise reduction in-ear typed Bluetooth headset |
| CN110364151B (en) * | 2019-07-15 | 2024-01-30 | 华为技术有限公司 | Voice awakening method and electronic equipment |
| CN111432305A (en) * | 2020-03-27 | 2020-07-17 | 歌尔科技有限公司 | Earphone alarm method and device and wireless earphone |
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| TWI753685B (en) | 2022-01-21 |
| CN112118506A (en) | 2020-12-22 |
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