CN104581536A - Method and device for controlling noise reduction of earphone - Google Patents

Abstract

The present invention is applicable to the technical field of earphone noise reduction, and provides a method and device for controlling earphone noise reduction. The method for controlling earphone noise reduction includes: using a terminal microphone to collect noise signals in the environment; processing the collected noise signals , to generate a judgment result; according to the judgment result, control the connected earphone to turn on the noise reduction function or turn off the noise reduction function. The invention solves the problem that the existing earphone noise reduction method needs to set a hardware switch for adjusting noise reduction on the earphone, which is not conducive to the high integration of the earphone and cannot realize automatic noise reduction. The beneficial effect lies in two aspects. On the one hand, the manufacturer does not need to set the hardware for adjusting noise reduction on the earphones. On the other hand, it realizes automatic noise reduction, and the earphones can be turned on or off automatically without the hardware switch on the earphones. The noise reduction function of the earphone not only improves the integration degree of the earphone, but also improves the noise reduction efficiency of the earphone.

Description

A method and device for controlling noise reduction of earphones

technical field

The invention belongs to the technical field of earphone noise reduction, and in particular relates to a method and device for controlling earphone noise reduction.

Background technique

Noise pollution is one of the four major pollutions recognized internationally. With the development of urbanization and technological progress, noise pollution has become more and more serious. When the user plays audio through an external earphone connected to the terminal, the noise reduction method of the earphone can be controlled to reduce the environmental noise and protect the user's hearing.

There are two ways to implement the noise reduction method of earphones currently used. The first way is to physically isolate the noise through the earphones so that it cannot enter the human ear; Phase inversion and superposition cancel out the noise entering the earphones, making it impossible for the human ear to perceive.

However, the existing earphone noise reduction method needs to set a hardware switch for adjusting noise reduction on the earphone, which is not conducive to the high integration of the earphone, and cannot realize automatic noise reduction. The reason is that the existing earphone noise reduction methods all directly use the earphone to adjust the noise reduction. Using the first method, the user can adjust the degree of noise isolation and wearing comfort of the earphone by adjusting the tightness of the headband. Using the second method, the user can turn on or off the earphone through the switch or button on the earphone. Noise reduction function. Therefore, these two methods all need to be used to manually turn on or off the noise reduction function of the earphone through the hardware switch on the earphone, which is cumbersome to operate, reduces the noise reduction efficiency, and cannot realize automatic noise reduction. At the same time, these two methods require manufacturers to set and adjust noise reduction hardware on the headset, thus reducing the integration level of the headset.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a noise reduction method for controlling earphones, which aims to solve the problem that the existing earphone noise reduction methods need to set a hardware switch for adjusting noise reduction on the earphones, which is not conducive to the high integration of earphones, and cannot realize automatic noise reduction. noise problem.

The embodiment of the present invention is achieved in this way, a noise reduction method for controlling earphones, comprising:

Use the terminal microphone to collect the noise signal of the environment;

Process the collected noise signals to generate judgment results;

According to the judgment result, the connected earphone is controlled to enable or disable the noise reduction function.

Another object of the embodiments of the present invention is to provide a noise reduction device for controlling earphones, including:

The noise signal acquisition module is used to collect the noise signal of the environment by using the terminal microphone;

The judgment result generation module is used to process the collected noise signal to generate a judgment result;

The earphone noise reduction control module is used to control the connected earphone to enable or disable the noise reduction function according to the judgment result.

In the embodiment of the present invention, according to the judgment result, the connected earphone is controlled to turn on or off the noise reduction function, which solves the problem of the existing earphone noise reduction method, which needs to set a hardware switch for adjusting the noise reduction on the earphone, which is not conducive to The headset is highly integrated and cannot achieve automatic noise reduction. The beneficial effect lies in two aspects. On the one hand, the manufacturer does not need to set the hardware for adjusting noise reduction on the earphones. On the other hand, it realizes automatic noise reduction, and the earphones can be turned on or off automatically without the hardware switch on the earphones. The noise reduction function of the earphone not only improves the integration degree of the earphone, but also improves the noise reduction efficiency of the earphone.

Description of drawings

Fig. 1 is the implementation flowchart of the noise reduction method for controlling earphones provided by the embodiment of the present invention;

Fig. 2 is a flowchart of the first implementation of the noise reduction method S102 for controlling earphones provided by an embodiment of the present invention;

FIG. 3 is a flowchart of the second implementation of the noise reduction method S102 for controlling earphones provided by an embodiment of the present invention;

Fig. 4 is a first structural block diagram of a noise reduction device for controlling earphones provided by an embodiment of the present invention;

Fig. 5 is a second structural block diagram of a noise reduction device for controlling earphones provided by an embodiment of the present invention;

Fig. 6 is a third structural block diagram of a noise reduction device for controlling earphones provided by an embodiment of the present invention;

Fig. 7 is a fourth structural block diagram of a noise reduction device for controlling earphones provided by an embodiment of the present invention.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Embodiment one

Fig. 1 is the implementation flowchart of the noise reduction method for controlling earphones provided by the embodiment of the present invention, which is described in detail as follows:

In step S101, using the terminal microphone to collect the noise signal of the environment;

Among them, using the terminal microphone to collect the noise signal of the environment, there are three implementation methods, which are described in detail as follows:

The first implementation mode:

Every preset detection interval, the terminal microphone is used to collect the noise signal of the environment.

It should be noted that since the environmental noise signal usually does not change much within a period of time, the detection of the environmental noise signal every preset detection interval can further save the power consumption of the terminal .

The second implementation mode:

When the distance from the geographic location where the noise signal of the environment was collected last time is not less than the preset distance, the noise signal of the environment is collected by using the terminal microphone.

It should be noted that since the distance from the geographical location where the noise signal detection of the last environment where the terminal is located exceeds the preset distance, the environment may also change due to the distance in the geographical location. The noise signal of the environment is detected once, and the change of the noise signal intensity of the environment can be notified to the user in time.

It should be noted that since it is possible that the terminal does not move beyond the preset distance, but the moving time is relatively long, in order to avoid a great change in the noise signal strength of the environment in the long moving time, the Unable to collect in real time, at this time, further, step S101 is specifically:

When the distance between the terminal and the geographic location of the last noise signal detection in the environment where the terminal is located does not exceed the preset distance, if the time since the noise signal detection of the last environment where the terminal was located at this time exceeds the preset detection interval, the terminal will It also obtains the noise signal detection of the environment in which it is located,

Therefore, the accuracy and real-time performance of noise signal detection in the environment are further improved.

Similarly, it should be noted that the distance between the terminal and the geographic location where the noise signal detection of the environment was performed last time can be obtained through the GPS function of the terminal to determine whether the terminal has left the location where the environment was last detected. The distance of the geographical location detected by the noise signal does not exceed a preset distance.

The third implementation mode:

When the terminal is located at a preset location, the microphone of the terminal is used to collect the noise signal of the environment where it is located.

Wherein, the preset location may be one or multiple at the same time. If there are multiple preset locations, when the mobile terminal is located at least one of the multiple preset locations, the acquisition uses the terminal microphone to collect the noise of the environment where it is located. Signal.

It should be noted that the preset location can be a specific location area, such as Shenzhen Futian District, Shenzhen Grand Theater, etc. In this case, the mobile terminal can obtain the preset location by detecting user input, or by reading The default preset location built into the mobile terminal is used to obtain the preset location. Meanwhile, the preset location may also be a preset location matched according to the query condition input by the user.

In step S102, the collected noise signal is processed to generate a judgment result;

Wherein, before step S102 or S101, a pre-configured noise signal processing model is used to process the collected noise signal to generate a judgment result, and the noise signal processing model includes at least one of a decibel processing model and a signal-to-noise ratio processing model kind.

In step S103, according to the determination result, the connected earphone is controlled to turn on the noise reduction function or turn off the noise reduction function.

According to the judgment result, the terminal sends a noise reduction enable command or a noise reduction disable command to the earphone connected to the terminal, so as to control the earphone connected to enable or disable the noise reduction function.

Wherein, the terminal is a device that exchanges commands or data with the earphone in a wired or wireless manner.

The terminals include, but are not limited to, smart phones, tablet computers, notebook computers, desktop computers, and smart TVs.

It should be noted that, the connection between the terminal and the earphone may be established through any kind of wired way, or through any kind of wireless way. Wireless methods include but are not limited to Bluetooth, WIFI, 3G, 4G, and 5G.

It should be noted that the judgment result may be displayed on the display screen of the terminal.

In the embodiment of the present invention, according to the judgment result, the connected earphones are controlled to turn on or off the noise reduction function, which solves the problem of the existing earphone noise reduction method, which requires a hardware switch to adjust the noise reduction on the earphone, which is not conducive to The headset is highly integrated and cannot achieve automatic noise reduction. Changing the traditional manual noise reduction to automatic noise reduction makes the earphones not only more humanized and intelligent, but also better meet the needs of users for healthy ears.

Embodiment two

This embodiment describes the implementation process of configuring the noise signal processing model, which is described in detail as follows:

Use the pre-configured noise signal processing model to process the collected noise signal, before generating the judgment result, including:

Configuring a noise signal processing model, the noise signal processing model includes at least one of a decibel processing model and a signal-to-noise ratio processing model;

Wherein, the decibel processing model is:

$\left\{\begin{array}{c}{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; value</span>}}<span\; class="notranslate">\; \&Greater\; Equal;</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}\\ {\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; value</span>}}<span\; class="notranslate">\; <</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}\end{array}\right.<span\; class="notranslate">\; ,</span>$

The dB _value is the decibel of the noise signal, and the τ is the preset decibel threshold for opening the noise reduction;

Among them, the value of τ can be set by the user or defaulted by the system.

It should be noted that, according to physiological and medical research, when the environmental noise reaches 40dB, it will cause significant damage to human hearing. Therefore τ can take a value of 40.

Wherein, the signal-to-noise ratio processing model is:

$\left\{\begin{array}{c}{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; SNR</span>}}<span\; class="notranslate">\; <</span>\mathrm{<span\; class="notranslate">\; \&sigma;</span>}\\ {\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; SNR</span>}}<span\; class="notranslate">\; \&Greater\; Equal;</span>\mathrm{<span\; class="notranslate">\; \&sigma;</span>}\end{array}\right.<span\; class="notranslate">\; ,</span>$

The dB _SNR is a signal-to-noise ratio, the σ is a preset signal-to-noise ratio threshold for enabling noise reduction, and the signal-to-noise ratio is a ratio of the current in-ear signal to the noise signal.

It should be noted that when using headphones, the sound source enters the human ear through a series of processing, and this part of the signal is the in-ear signal. The terminal can obtain the size of the in-ear signal through the power amplifier of the earphone.

It should be noted that the external environment noise collected by the microphone is a noise signal, not a noise signal generated due to design reasons.

It should be noted that there are three implementation methods for generating the SNR, which are described in detail as follows:

The first implementation method:

${\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; SNR</span>}}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; signal</span>}}}{{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; noice</span>}}}$

Among them, dB _signal is the decibel of the ear signal, and dB _signal is the decibel of the noise signal,

The second implementation method:

${\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; SNR</span>}}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; signal</span>}}}{{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; signal</span>}}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; noice</span>}}}$

Among them, dB _signal is the decibel of the ear signal, and dB _signal is the decibel of the noise signal.

The third implementation method:

${\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; SNR</span>}}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; signal</span>}}}{{\mathrm{<span\; class="notranslate">\; \&mu;</span>}<span\; class="notranslate">\; \&times;</span>\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; signal</span>}}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; \&rho;</span>}<span\; class="notranslate">\; \&times;</span>{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; noice</span>}}}$

Among them, dB _signal is the decibel of the in-ear signal, dB _signal is the decibel of the noise signal, μ and ρ are the parameters, and μ+ρ=1, through this design, the designer can adjust the parameters according to different earphones and different terminal software and hardware configurations , so that the noise reduction of the headphones can be used in the best condition.

Among them, the value of σ can be set by the user or defaulted by the system.

In the embodiment of the present invention, a noise signal processing model is configured for subsequent calling.

Embodiment three

Fig. 2 is a flowchart of the first implementation of the noise reduction method S102 for controlling earphones provided by an embodiment of the present invention, which is described in detail as follows:

In step S201, a pre-configured decibel processing model is used to detect whether the decibel of the collected noise signal is greater than the preset decibel threshold for enabling noise reduction;

In step S202, when it is detected that the decibel of the collected noise signal is greater than the preset decibel threshold for enabling noise reduction, a judgment result for enabling noise reduction is generated; when it is detected that the decibel of the collected noise signal is not greater than the preset threshold for enabling noise reduction When the decibel threshold is set, a judgment result of disabling noise reduction is generated.

In the embodiment of the present invention, when the terminal generates a judgment result of enabling noise reduction, it sends a command to enable noise reduction to the earphone connected to the terminal, so as to control the connected earphone to enable the noise reduction function. When the terminal generates a judgment result of turning on and off the noise reduction, it sends a turn on and off noise reduction command to the earphone connected to the terminal, so as to control the connected earphone to turn off and on the noise reduction function.

Embodiment Four

Fig. 3 is a second implementation flowchart of the method S102 for controlling noise reduction of earphones provided by an embodiment of the present invention, which is described in detail as follows:

In step S301, the signal-to-noise ratio is obtained, and the signal-to-noise ratio is the ratio of the current in-ear signal to the noise signal;

In step S302, a pre-configured SNR processing model is used to detect whether the SNR of the collected noise signal is greater than the preset SNR threshold for enabling noise reduction;

In step S303, when it is detected that the signal-to-noise ratio of the collected noise signal is greater than the preset signal-to-noise ratio threshold for enabling noise reduction, a judgment result for enabling noise reduction is generated; when it is detected that the signal-to-noise ratio of the collected noise signal is not greater than When the preset signal-to-noise ratio threshold of noise reduction is turned on, a judgment result of turning off noise reduction is generated.

In the embodiment of the present invention, when the terminal generates a judgment result of enabling noise reduction, it sends a command to enable noise reduction to the earphone connected to the terminal, so as to control the connected earphone to enable the noise reduction function. When the terminal generates a judgment result of turning on and off the noise reduction, it sends a turn on and off noise reduction command to the earphone connected to the terminal, so as to control the connected earphone to turn off and on the noise reduction function.

Embodiment five

The embodiment of the present invention mainly describes the preferred implementation process of the present invention in three different scenarios, which are described in detail as follows:

In the first scene, real-time control of earphone noise reduction through a smartphone is detailed as follows:

Call the smartphone's microphone to collect ambient noise and input it into the smartphone;

On the smartphone, install the APP that realizes the expected function;

This APP analyzes and processes the noise signal input by the microphone of the mobile phone, and obtains the judgment result;

According to the judgment result, the APP sends the command to turn on the noise reduction or turn off the noise reduction to the headset through Bluetooth;

After the earphone receives the command to turn on the noise reduction or to turn off the command to turn off the noise reduction, it changes the current state of the noise reduction function of the current earphone, and turns on or off the noise reduction function.

In the second scene, real-time control of earphone noise reduction through a laptop is detailed as follows:

Call the microphone of the laptop to collect ambient noise and input it into the smartphone;

On the laptop, install the software that implements the intended functionality;

This software analyzes and processes the noise signal input by the microphone of the notebook computer, and obtains the judgment result;

The software needs to turn on the noise reduction function of the earphone to judge the state of the current environmental noise, and send the judgment result to the earphone through WIFI;

After the headset receives this command, it reads that the current noise reduction function of the headset is on, and after comparison, it is judged that there is no need to change the current status of the noise reduction function of the headset.

In the third scene, real-time control of earphone noise reduction through a desktop computer is detailed as follows:

Call the microphone of the desktop computer to collect ambient noise and input it into the smartphone;

On the desktop computer, install the software that implements the intended function;

This software analyzes and processes the noise signal input by the microphone of the notebook computer, and obtains the judgment result;

The software needs to turn on the noise reduction function of the earphone to judge the state of the current environmental noise, and send the judgment result to the earphone through the USB connection.

After the headset receives this command, it reads that the current noise reduction function of the headset is off. After comparison, it is judged that the current status of the noise reduction function of the headset needs to be changed, and the noise reduction function is turned on.

Embodiment six

Fig. 4 is a first structural block diagram of a device for controlling noise reduction for earphones provided by an embodiment of the present invention, and the device for controlling noise reduction for headphones can run in a terminal. The terminals include, but are not limited to, smart phones, tablet computers, notebook computers, desktop computers, and smart TVs. For ease of description, only the parts related to this embodiment are shown.

Referring to Fig. 4, the control earphone noise reduction device includes:

The noise signal acquisition module 41 is used to collect the noise signal of the environment by using the terminal microphone;

Judgment result generation module 42, used for processing the noise signal of collection, generates judgment result;

The earphone noise reduction control module 43 is configured to control the connected earphone to enable or disable the noise reduction function according to the judgment result.

In an implementation of this embodiment, in the noise reduction device for controlling earphones, the judgment result generation module is specifically used to process the collected noise signal by using a pre-configured noise signal processing model to generate a judgment result , the noise signal processing model includes at least one of a decibel processing model and a signal-to-noise ratio processing model.

In an implementation of this embodiment, refer to FIG. 5, which is a second structural block diagram of a noise reduction device for controlling earphones provided by an embodiment of the present invention. In the noise reduction device for controlling headphones, it also includes:

A noise signal processing model configuration module 44, configured to configure a noise signal processing model, the noise signal processing model including at least one of a decibel processing model and a signal-to-noise ratio processing model;

Wherein, the decibel processing model is:

$\left\{\begin{array}{c}{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; value</span>}}<span\; class="notranslate">\; \&Greater\; Equal;</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}\\ {\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; value</span>}}<span\; class="notranslate">\; <</span>\mathrm{<span\; class="notranslate">\; \&tau;</span>}\end{array}\right.<span\; class="notranslate">\; ,</span>$

The dB _value is the decibel of the noise signal, and the τ is the preset decibel threshold for opening the noise reduction;

Wherein, the signal-to-noise ratio processing model is:

$\left\{\begin{array}{c}{\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; SNR</span>}}<span\; class="notranslate">\; <</span>\mathrm{<span\; class="notranslate">\; \&sigma;</span>}\\ {\mathrm{<span\; class="notranslate">\; dB</span>}}_{\mathrm{<span\; class="notranslate">\; SNR</span>}}<span\; class="notranslate">\; \&Greater\; Equal;</span>\mathrm{<span\; class="notranslate">\; \&sigma;</span>}\end{array}\right.<span\; class="notranslate">\; ,</span>$

The dB _SNR is a signal-to-noise ratio, the σ is a preset signal-to-noise ratio threshold for enabling noise reduction, and the signal-to-noise ratio is a ratio of the current in-ear signal to the noise signal.

In an implementation of this embodiment, refer to FIG. 6, which is a third structural block diagram of a noise reduction device for controlling earphones provided by an embodiment of the present invention. In the noise reduction device for controlling headphones, the judgment result generation module 42, including:

The decibel detection unit 421 is configured to adopt a pre-configured decibel processing model to detect whether the decibel of the collected noise signal is greater than the preset decibel threshold for enabling noise reduction;

The first judgment result generation unit 422 is used to generate a judgment result for enabling noise reduction when it is detected that the decibel of the collected noise signal is greater than the preset decibel threshold for enabling noise reduction, and when it is detected that the decibel of the collected noise signal is not greater than the threshold for enabling noise reduction. When the preset decibel threshold of noise reduction is set, a judgment result of turning off noise reduction is generated.

In an implementation of this embodiment, refer to FIG. 7, which is a fourth structural block diagram of a noise reduction device for controlling earphones provided by an embodiment of the present invention. In the noise reduction device for controlling headphones, the judgment result generation module 42, including:

A signal-to-noise ratio acquisition unit 423, configured to acquire a signal-to-noise ratio, the signal-to-noise ratio being the ratio of the current in-ear signal to the noise signal;

The signal-to-noise ratio detection unit 424 is configured to adopt a pre-configured signal-to-noise ratio processing model to detect whether the signal-to-noise ratio of the collected noise signal is greater than the preset signal-to-noise ratio threshold for enabling noise reduction;

The second judgment result generation unit 425 is configured to generate a judgment result for enabling noise reduction when it is detected that the signal-to-noise ratio of the collected noise signal is greater than the preset signal-to-noise ratio threshold for enabling noise reduction. When the signal-to-noise ratio is not greater than the preset signal-to-noise ratio threshold for enabling the noise reduction, a judgment result of disabling the noise reduction is generated.

The apparatus provided by the embodiment of the present invention may be applied in the foregoing corresponding method embodiments. For details, refer to the description of the foregoing embodiments, and details are not repeated here.

Through the above description of the implementation manners, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general-purpose hardware. The program can be stored in a readable storage medium, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory, and executes the methods described in the various embodiments of the present invention in combination with its hardware.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. All should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

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:

$\left\{\begin{array}{c}{\mathrm{dB}}_{\mathrm{value}}\&GreaterEqual;\mathrm{\&tau;}\\ {\mathrm{dB}}_{\mathrm{value}}<\mathrm{\&tau;}\end{array}\right.,$

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:

$\left\{\begin{array}{c}{\mathrm{dB}}_{\mathrm{SNR}}<\mathrm{\&sigma;}\\ {\mathrm{dB}}_{\mathrm{SNR}}\&GreaterEqual;\mathrm{\&sigma;}\end{array}\right.,$

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:

$\left\{\begin{array}{c}{\mathrm{dB}}_{\mathrm{value}}\&GreaterEqual;\mathrm{\&tau;}\\ {\mathrm{dB}}_{\mathrm{value}}<\mathrm{\&tau;}\end{array}\right.,$

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:

$\left\{\begin{array}{c}{\mathrm{dB}}_{\mathrm{SNR}}<\mathrm{\&sigma;}\\ {\mathrm{dB}}_{\mathrm{SNR}}\&GreaterEqual;\mathrm{\&sigma;}\end{array}\right.,$

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.