CN104581536A - Method and device for controlling noise reduction of earphone - Google Patents
Method and device for controlling noise reduction of earphone Download PDFInfo
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Abstract
The invention relates to the field of earphone noise reduction technologies and provides a method and device for controlling noise reduction of an earphone. The method for controlling noise reduction of the earphone includes the steps that a noise signal of the environment is collected through a terminal microphone; the collected noise signal is processed to generate a judgment result; according to the judgment result, the connected earphone is controlled to switch on or switch off a noise reduction function. The method and device for controlling noise reduction of the earphone solve the problems that for an existing earphone noise reduction method, a hardware switch adjusting noise reduction needs to be arranged on the earphone, highly integration of the earphone is not facilitated, and automatic noise reduction can not be achieved. The method and device for controlling noise reduction of the earphone have the advantages that on one hand, a manufacturer does not need to arrange hardware for adjusting noise reduction; on the other hand, automatic noise reduction is achieved, on the premise that the hardware switch on the earphone is not needed, the noise reduction function of the earphone can be automatically switched on or switched off, so the integration degree of the earphone is improved, and the efficiency of noise reduction of the earphone is also improved.
Description
Technical field
The invention belongs to earphone noise reduction technology field, particularly relate to a kind of control earphone noise-reduction method and device.
Background technology
Noise pollution one of is polluted greatly as internationally recognized four, and along with the development of urbanization and the progress of technology, noise pollution also becomes more serious.When user is by terminal peripheral earphone audio plays, by controlling earphone noise-reduction method, reduce environmental noise, the hearing of protection user.
The earphone noise-reduction method of current use, has two kinds of implementations, and first kind of way cuts off noise physically by earphone, makes it cannot enter people's ear; The second way is that earphone collects noise, carries out the anti-phase of noise and superposes, offset and enter the noise of earphone in earphone inside, makes people's ear cannot perception.
But existing earphone noise-reduction method, needs to arrange the hardware switch regulating noise reduction on earphone, is unfavorable for that the height of earphone is integrated, and can not realizes automatic noise reduction.Its reason is, existing earphone noise-reduction method, is all directly use earphone to carry out adjustment noise reduction.Use first kind of way, user can regulate earphone to the partition degree of noise and the comfort level worn by regulating the degree of tightness of head wire, and use the second way, user can open or close the decrease of noise functions of earphone by the switch on earphone or button.Therefore, these two kinds of modes are all need for by the hardware switch on earphone, manual unlocking or close the decrease of noise functions of earphone, and complex operation, reduces noise reduction efficacy, can not realize automatic noise reduction.Meanwhile, these two kinds of modes, need manufacturer on earphone, to arrange the hardware regulating noise reduction, because this reducing the degree of integration of earphone.
Summary of the invention
The object of the embodiment of the present invention is that providing a kind of controls earphone noise-reduction method, is intended to solve existing earphone noise-reduction method, needs on earphone, arrange the hardware switch regulating noise reduction, is unfavorable for that the height of earphone is integrated, and can not realizes the problem of automatic noise reduction.
The embodiment of the present invention is achieved in that a kind of control earphone noise-reduction method, comprising:
Utilize terminal microphone, gather the noise signal of residing environment;
The noise signal gathered is processed, generates judged result;
According to described judged result, the earphone of control connection is opened decrease of noise functions or closes decrease of noise functions.
Another object of the embodiment of the present invention is that providing a kind of controls noise reduction device of earphone, comprising:
Noise signal acquisition module, for utilizing terminal microphone, gathers the noise signal of residing environment;
Judged result generation module, for processing the noise signal gathered, generates judged result;
Earphone noise reduction control module, for according to described judged result, the earphone of control connection is opened decrease of noise functions or closes decrease of noise functions.
In embodiments of the present invention, according to described judged result, the earphone of control connection is opened decrease of noise functions or closes decrease of noise functions, solve existing earphone noise-reduction method, need on earphone, arrange the hardware switch regulating noise reduction, be unfavorable for that the height of earphone is integrated, and the problem of automatic noise reduction can not be realized.Beneficial effect is two aspects, on the one hand, manufacturer does not need on earphone, arrange the hardware regulating noise reduction, on the other hand, achieve automatic noise reduction, under the prerequisite not needing the hardware switch on earphone, automatically can open or close the decrease of noise functions of earphone, thus both improve the degree of integration of earphone, also improve the noise reduction efficacy of earphone.
Accompanying drawing explanation
Fig. 1 is the realization flow figure of the control earphone noise-reduction method that the embodiment of the present invention provides;
Fig. 2 is the first implementing procedure figure of the control earphone noise-reduction method S102 that the embodiment of the present invention provides;
Fig. 3 is the second implementing procedure figure of the control earphone noise-reduction method S102 that the embodiment of the present invention provides;
Fig. 4 is the first structured flowchart of the control noise reduction device of earphone that the embodiment of the present invention provides;
Fig. 5 is the second structured flowchart of the control noise reduction device of earphone that the embodiment of the present invention provides;
Fig. 6 is the 3rd structured flowchart of the control noise reduction device of earphone that the embodiment of the present invention provides;
Fig. 7 is the 4th structured flowchart of the control noise reduction device of earphone that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment one
Fig. 1 is the realization flow figure of the control earphone noise-reduction method that the embodiment of the present invention provides, and details are as follows:
In step S101, utilize terminal microphone, gather the noise signal of residing environment;
Wherein, utilize terminal microphone, gather the noise signal of residing environment, have three kinds of execution modes, details are as follows:
The first execution mode:
Every the assay intervals preset, utilize terminal microphone, gather the noise signal of residing environment.
It should be noted that, because the noise signal of environment within a period of time, too large change can't occur usually, therefore, every the assay intervals preset, one-time detection is carried out to the noise signal of environment, the electric quantity consumption of terminal can be saved further.
The second execution mode:
When leaving the last distance gathering the geographical position of the noise signal of residing environment and being not less than predeterminable range, utilize terminal microphone, gather the noise signal of residing environment.
It should be noted that, after the distance in the geographical position that the noise signal leaving last residing environment due to terminal detects exceedes predeterminable range, likely because the distance on geographical position, residing environment also there occurs change, now again one-time detection is carried out to the noise signal of residing environment, the situation of change of the noise signal intensity of environment residing for user can be informed in time.
It should be noted that, owing to likely occurring that fast mobile terminal does not exceed predeterminable range, but the situation that traveling time is longer, in order to avoid the noise signal intensity of environment residing in the traveling time that this is longer has a very large change, but cannot Real-time Collection, now, further, step S101 is specially:
When the distance in the geographical position that the noise signal that terminal leaves last residing environment detects does not exceed predeterminable range, if the time that now residing for the distance terminal last time, the noise signal of environment detects has exceeded the assay intervals preset, then terminal also obtains the noise signal detection carrying out residing environment
The accuracy that the noise signal improving residing environment further thus detects and real-time.
Similarly, it should be noted that, the GPS function that can be carried by terminal obtains the distance in the geographical position that noise signal that the terminal current distance last time carries out residing environment detects, and judges that the distance whether described terminal leaves the geographical position that noise signal that the last time carries out residing environment detects does not exceed predeterminable range.
The third execution mode:
When terminal is positioned at preset location, utilize terminal microphone, gather the noise signal of residing environment.
Wherein, preset location can be one or be multiple simultaneously, if preset location is multiple, when described mobile terminal is arranged at least one of multiple preset location, obtains and utilizes terminal microphone, gather the noise signal of residing environment.
It should be noted that, preset location can be a concrete band of position, such as Futian Area of Shenzhen City, Guangdong Province, Shenzhen grand theater etc., in this case, mobile terminal can obtain preset location by detecting user's input, also can obtain preset location by the acquiescence preset location reading mobile terminal built-in.Meanwhile, preset location also can for the preset location matched according to the querying condition of user's input.
In step s 102, the noise signal gathered is processed, generate judged result;
Wherein, before step S102 or S101, adopt pre-configured noise signal transaction module, the noise signal gathered is processed, generate judged result, described noise signal transaction module comprises at least one in decibel transaction module and signal to noise ratio transaction module.
In step s 103, according to described judged result, the earphone of control connection is opened decrease of noise functions or closes decrease of noise functions.
Terminal, according to described judged result, to the earphone be connected with described terminal, sends and opens noise reduction order or close noise reduction order, open decrease of noise functions or close decrease of noise functions with the earphone of control connection.
Wherein, described terminal is the equipment being carried out order or data interaction by wired or wireless mode and earphone.
Described terminal includes but not limited to smart mobile phone, panel computer, notebook computer, desktop computer, intelligent television.
It should be noted that, between terminal and earphone, the mode wired by any one connects, or is connected by any one wireless mode.Wireless mode includes but not limited to bluetooth, WIFI, 3G, 4G, 5G.
It should be noted that, can on the display screen of terminal, display judged result.
In embodiments of the present invention, according to described judged result, the earphone of control connection is opened decrease of noise functions or closes decrease of noise functions, solve existing earphone noise-reduction method, need on earphone, arrange the hardware switch regulating noise reduction, be unfavorable for that the height of earphone is integrated, and the problem of automatic noise reduction can not be realized.By traditional manual noise reduction, change automatic noise reduction into, make earphone not only hommization and intellectuality more, also more can meet the demand of user to health ear simultaneously.
embodiment two
Present embodiment describes the implementation process of configuration noise signal transaction module, details are as follows:
Adopt pre-configured noise signal transaction module, the noise signal gathered processed, before generating judged result, comprising:
Configuration noise signal transaction module, described noise signal transaction module comprises at least one in decibel transaction module and signal to noise ratio transaction module;
Wherein, described decibel transaction module is:
Described dB
valuefor the decibel of noise signal, described τ is the default decibel threshold opening noise reduction;
The wherein value of τ can, for user is from establishing, also can be system default.
It should be noted that, according to physiology and medical research, significantly infringement will be produced to the hearing of people when environmental noise reaches 40dB.Therefore τ can value be 40.
Wherein, described signal to noise ratio transaction module is:
Described dB
sNRfor signal to noise ratio, described σ is the default snr threshold opening noise reduction, and described signal to noise ratio is current pleasant signal and the ratio of described noise signal.
It should be noted that, when using earphone, source of sound enters people's ear through a series of process, and this part signal is pleasant signal.Terminal, by the power amplifier of earphone, obtains the size of pleasant signal.
It should be noted that, the external environment noise that microphone is collected is noise signal, does not refer to the noise signal of the reason generation due to design.
It should be noted that, the generation of signal to noise ratio, have three kinds of implementations, details are as follows:
The first implementation:
Wherein, dB
signalfor the decibel of pleasant signal, dB
signalfor the decibel of noise signal,
The second implementation:
Wherein, dB
signalfor the decibel of pleasant signal, dB
signalfor the decibel of noise signal.
The third implementation:
Wherein, dB
signalfor the decibel of pleasant signal, dB
signalfor the decibel of noise signal, μ and ρ is parameter, μ+ρ=1, and by this design, designer can according to different earphone and different terminals software and hardware configuration, adjustment parameter, to make the using state reaching the best of earphone noise reduction.
The wherein value of σ can, for user is from establishing, also can be system default.
In embodiments of the present invention, configuration noise signal transaction module, is convenient to follow-up calling.
embodiment three
Fig. 2 is the first implementing procedure figure of the control earphone noise-reduction method S102 that the embodiment of the present invention provides, and details are as follows:
In step s 201, adopt pre-configured decibel transaction module, whether the decibel detecting the noise signal gathered is greater than the default decibel threshold opening noise reduction;
In step S202, when the decibel of noise signal collection being detected is greater than the default decibel threshold opening noise reduction, generate the judged result of opening noise reduction, when the decibel of noise signal collection being detected is not more than the default decibel threshold opening noise reduction, generate the judged result of closing noise reduction.
In embodiments of the present invention, when terminal generates the judged result of opening noise reduction, to the earphone be connected with terminal, send and open noise reduction order, open decrease of noise functions with the earphone of control connection.When terminal generates the judged result of start or stop noise reduction, to the earphone be connected with terminal, send the order of start or stop noise reduction, with the earphone start or stop decrease of noise functions of control connection.
embodiment four
Fig. 3 is the second implementing procedure figure of the control earphone noise-reduction method S102 that the embodiment of the present invention provides, and details are as follows:
In step S301, obtain signal to noise ratio, described signal to noise ratio is current pleasant signal and the ratio of described noise signal;
In step s 302, adopt pre-configured signal to noise ratio transaction module, whether the signal to noise ratio detecting the noise signal gathered is greater than the default snr threshold opening noise reduction;
In step S303, when the signal to noise ratio of noise signal collection being detected is greater than the default snr threshold opening noise reduction, generate the judged result of opening noise reduction, when the signal to noise ratio of noise signal collection being detected is not more than the default snr threshold opening noise reduction, generate the judged result of closing noise reduction.
In embodiments of the present invention, when terminal generates the judged result of opening noise reduction, to the earphone be connected with terminal, send and open noise reduction order, open decrease of noise functions with the earphone of control connection.When terminal generates the judged result of start or stop noise reduction, to the earphone be connected with terminal, send the order of start or stop noise reduction, with the earphone start or stop decrease of noise functions of control connection.
embodiment five
The embodiment of the present invention essentially describes the present invention's preferably implementing procedure in three different scenes, and details are as follows:
First scene, control earphone noise reduction in real time by smart mobile phone, details are as follows:
The microphone calling smart mobile phone gathers environmental noise, and it is inner to be inputted smart mobile phone;
On smart mobile phone, the APP achieving expectation function is installed;
This APP carries out analyzing and processing to the noise signal that mobile microphone inputs, and draws judged result;
APP, according to judged result, by bluetooth, sends to earphone and opens noise reduction order or close noise reduction order;
Earphone receives to be opened noise reduction order or after closing noise reduction order, changes the current state of current earphone decrease of noise functions, opens or closes decrease of noise functions.
Second scene, control earphone noise reduction in real time by notebook computer, details are as follows:
The microphone calling notebook computer gathers environmental noise, and it is inner to be inputted smart mobile phone;
On notebook computer, the software achieving expectation function is installed;
This software carries out analyzing and processing to the noise signal that notebook computer microphone inputs, and draws judged result;
Software judges that the state of current environment noise needs to open the decrease of noise functions of earphone, and this judged result is sent to earphone by WIFI;
After earphone receives this order, reading current earphone decrease of noise functions is opening, judges the current state not needing to change earphone decrease of noise functions after contrast.
3rd scene, control earphone noise reduction in real time by desktop computer, details are as follows:
The microphone calling desktop computer gathers environmental noise, and it is inner to be inputted smart mobile phone;
On desktop computer, the software achieving expectation function is installed;
This software carries out analyzing and processing to the noise signal that notebook computer microphone inputs, and draws judged result;
Software judges that the state of current environment noise needs to open the decrease of noise functions of earphone, and this judged result is sent to earphone by USB line.
After earphone receives this order, reading current earphone decrease of noise functions is closed condition, judges the current state needing to change earphone decrease of noise functions, opened by decrease of noise functions after contrast.
embodiment six
Fig. 4 is the first structured flowchart of the control noise reduction device of earphone that the embodiment of the present invention provides, and this control noise reduction device of earphone can run in terminal.Described terminal includes but not limited to smart mobile phone, panel computer, notebook computer, desktop computer, intelligent television.For convenience of explanation, illustrate only part related to the present embodiment.
With reference to Fig. 4, this control noise reduction device of earphone, comprising:
Noise signal acquisition module 41, for utilizing terminal microphone, gathers the noise signal of residing environment;
Judged result generation module 42, for processing the noise signal gathered, generates judged result;
Earphone noise reduction control module 43, for according to described judged result, the earphone of control connection is opened decrease of noise functions or closes decrease of noise functions.
In a kind of implementation of the present embodiment, in this control noise reduction device of earphone, described judged result generation module, specifically for adopting pre-configured noise signal transaction module, the noise signal gathered is processed, generate judged result, described noise signal transaction module comprises at least one in decibel transaction module and signal to noise ratio transaction module.
In a kind of implementation of the present embodiment, be the second structured flowchart of the control noise reduction device of earphone that the embodiment of the present invention provides with reference to figure 5, Fig. 5, in this control noise reduction device of earphone, also comprise:
Noise signal transaction module configuration module 44, for configuring noise signal transaction module, described noise signal transaction module comprises at least one in decibel transaction module and signal to noise ratio transaction module;
Wherein, described decibel transaction module is:
Described dB
valuefor the decibel of noise signal, described τ is the default decibel threshold opening noise reduction;
Wherein, described signal to noise ratio transaction module is:
Described dB
sNRfor signal to noise ratio, described σ is the default snr threshold opening noise reduction, and described signal to noise ratio is current pleasant signal and the ratio of described noise signal.
In a kind of implementation of the present embodiment, be the 3rd structured flowchart of the control noise reduction device of earphone that the embodiment of the present invention provides with reference to figure 6, Fig. 6, in this control noise reduction device of earphone, described judged result generation module 42, comprising:
Decibel detecting unit 421, for adopting pre-configured decibel transaction module, whether the decibel detecting the noise signal gathered is greater than the default decibel threshold opening noise reduction;
First judged result generation unit 422, during for being greater than the default decibel threshold opening noise reduction when the decibel of noise signal collection being detected, generate the judged result of opening noise reduction, when the decibel of noise signal collection being detected is not more than the default decibel threshold opening noise reduction, generate the judged result of closing noise reduction.
In a kind of implementation of the present embodiment, be the 4th structured flowchart of the control noise reduction device of earphone that the embodiment of the present invention provides with reference to figure 7, Fig. 7, in this control noise reduction device of earphone, described judged result generation module 42, comprising:
Signal to noise ratio acquiring unit 423, for obtaining signal to noise ratio, described signal to noise ratio is current pleasant signal and the ratio of described noise signal;
Signal to noise ratio detecting unit 424, for adopting pre-configured signal to noise ratio transaction module, whether the signal to noise ratio detecting the noise signal gathered is greater than the default snr threshold opening noise reduction;
Second judged result generation unit 425, during for being greater than the default snr threshold opening noise reduction when the signal to noise ratio of noise signal collection being detected, generate the judged result of opening noise reduction, when the signal to noise ratio of noise signal collection being detected is not more than the default snr threshold opening noise reduction, generate the judged result of closing noise reduction.
The device that the embodiment of the present invention provides can be applied in the embodiment of the method for aforementioned correspondence, and details, see the description of above-described embodiment, do not repeat them here.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required common hardware by software and realizes.Described program can be stored in read/write memory medium, described storage medium, as random asccess memory, flash memory, read-only memory, programmable read only memory, electrically erasable programmable memory, register etc.This storage medium is positioned at memory, and processor reads the information in memory, performs the method described in each embodiment of the present invention in conjunction with its hardware.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. control an earphone noise-reduction method, it is characterized in that, comprising:
Utilize terminal microphone, gather the noise signal of residing environment;
The noise signal gathered is processed, generates judged result;
According to described judged result, the earphone of control connection is opened decrease of noise functions or closes decrease of noise functions.
2. control earphone noise-reduction method as claimed in claim 1, it is characterized in that, the described noise signal to gathering processes, and generates judged result, is specially:
Adopt pre-configured noise signal transaction module, process the noise signal gathered, generate judged result, described noise signal transaction module comprises at least one in decibel transaction module and signal to noise ratio transaction module.
3. control earphone noise-reduction method as claimed in claim 2, it is characterized in that, at the noise signal transaction module that described employing is pre-configured, process the noise signal gathered, before generating judged result, described control earphone noise-reduction method, also comprises:
Configuration noise signal transaction module, described noise signal transaction module comprises at least one in decibel transaction module and signal to noise ratio transaction module;
Wherein, described decibel transaction module is:
Described dB
valuefor the decibel of noise signal, described τ is the default decibel threshold opening noise reduction;
Wherein, described signal to noise ratio transaction module is:
Described dB
sNRfor signal to noise ratio, described σ is the default snr threshold opening noise reduction, and described signal to noise ratio is current pleasant signal and the ratio of described noise signal.
4. control earphone noise-reduction method as claimed in claim 2 or claim 3, it is characterized in that, when described noise signal transaction module is decibel transaction module, the noise signal transaction module that described employing is pre-configured, the noise signal gathered is processed, generates judged result, be specially:
Adopt pre-configured decibel transaction module, whether the decibel detecting the noise signal gathered is greater than the default decibel threshold opening noise reduction;
When the decibel of noise signal collection being detected is greater than the default decibel threshold opening noise reduction, generate the judged result of opening noise reduction, when the decibel of noise signal collection being detected is not more than the default decibel threshold opening noise reduction, generate the judged result of closing noise reduction.
5. control earphone noise-reduction method as claimed in claim 2 or claim 3, it is characterized in that, when described noise signal transaction module is signal to noise ratio transaction module, the noise signal transaction module that described employing is pre-configured, the noise signal gathered is processed, generates judged result, be specially:
Obtain signal to noise ratio, described signal to noise ratio is current pleasant signal and the ratio of described noise signal;
Adopt pre-configured signal to noise ratio transaction module, whether the signal to noise ratio detecting the noise signal gathered is greater than the default snr threshold opening noise reduction;
When the signal to noise ratio of noise signal collection being detected is greater than the default snr threshold opening noise reduction, generate the judged result of opening noise reduction, when the signal to noise ratio of noise signal collection being detected is not more than the default snr threshold opening noise reduction, generate the judged result of closing noise reduction.
6. control a noise reduction device of earphone, it is characterized in that, comprising:
Noise signal acquisition module, for utilizing terminal microphone, gathers the noise signal of residing environment;
Judged result generation module, for processing the noise signal gathered, generates judged result;
Earphone noise reduction control module, for according to described judged result, the earphone of control connection is opened decrease of noise functions or closes decrease of noise functions.
7. control noise reduction device of earphone as claimed in claim 6, it is characterized in that, described judged result generation module, specifically for adopting pre-configured noise signal transaction module, the noise signal gathered is processed, generate judged result, described noise signal transaction module comprises at least one in decibel transaction module and signal to noise ratio transaction module.
8. control noise reduction device of earphone as claimed in claim 7, it is characterized in that, described control noise reduction device of earphone, also comprises:
Noise signal transaction module configuration module, for configuring noise signal transaction module, described noise signal transaction module comprises at least one in decibel transaction module and signal to noise ratio transaction module;
Wherein, described decibel transaction module is:
Described dB
valuefor the decibel of noise signal, described τ is the default decibel threshold opening noise reduction;
Wherein, described signal to noise ratio transaction module is:
Described dB
sNRfor signal to noise ratio, described σ is the default snr threshold opening noise reduction, and described signal to noise ratio is current pleasant signal and the ratio of described noise signal.
9. control noise reduction device of earphone as claimed in claim 7 or 8, it is characterized in that, described judged result generation module, comprising:
Decibel detecting unit, for adopting pre-configured decibel transaction module, whether the decibel detecting the noise signal gathered is greater than the default decibel threshold opening noise reduction;
First judged result generation unit, during for being greater than the default decibel threshold opening noise reduction when the decibel of noise signal collection being detected, generate the judged result of opening noise reduction, when the decibel of noise signal collection being detected is not more than the default decibel threshold opening noise reduction, generate the judged result of closing noise reduction.
10. control noise reduction device of earphone as claimed in claim 7 or 8, it is characterized in that, described judged result generation module, comprising:
Signal to noise ratio acquiring unit, for obtaining signal to noise ratio, described signal to noise ratio is current pleasant signal and the ratio of described noise signal;
Signal to noise ratio detecting unit, for adopting pre-configured signal to noise ratio transaction module, whether the signal to noise ratio detecting the noise signal gathered is greater than the default snr threshold opening noise reduction;
Second judged result generation unit, during for being greater than the default snr threshold opening noise reduction when the signal to noise ratio of noise signal collection being detected, generate the judged result of opening noise reduction, when the signal to noise ratio of noise signal collection being detected is not more than the default snr threshold opening noise reduction, generate the judged result of closing noise reduction.
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| CN112185410B (en) * | 2020-10-21 | 2024-04-30 | 北京猿力未来科技有限公司 | Audio processing method and device |
| CN113739906A (en) * | 2021-08-31 | 2021-12-03 | 深圳市飞科笛系统开发有限公司 | Noise exposure index statistical method, device, equipment and storage medium |
| CN113739906B (en) * | 2021-08-31 | 2023-12-15 | 深圳市飞科笛系统开发有限公司 | Noise exposure index statistical method, device, equipment and storage medium |
| CN114103841A (en) * | 2021-11-16 | 2022-03-01 | 广州小鹏汽车科技有限公司 | Control method, vehicle, and storage medium |
| CN115988380A (en) * | 2023-03-21 | 2023-04-18 | 东莞市云仕电子有限公司 | Children wireless earphone with sleep promoting function and method |
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Denomination of invention: A method and device for controlling headphone noise reduction Granted publication date: 20181113 Pledgee: Shenzhen Rural Commercial Bank Co.,Ltd. Pingdi Sub branch Pledgor: SHENZHEN GRANDSUN ELECTRONIC Co.,Ltd. Registration number: Y2024980034910 |
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