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Method and device for controlling noise reduction of earphone

A technology for noise reduction and earphones, which is applied in earpiece/earphone accessories, transducer circuits, sensors, etc., can solve the problems of high integration of unfavorable earphones and the inability to realize automatic noise reduction, and achieve the goal of improving the integration degree and noise reduction efficiency Effect

Active Publication Date: 2015-04-29
SHENZHEN GRANDSUN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a noise reduction method for controlling earphones, which aims to solve the existing noise reduction methods for earphones. It is necessary 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

Method used

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  • Method and device for controlling noise reduction of earphone
  • Method and device for controlling noise reduction of earphone
  • Method and device for controlling noise reduction of earphone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 It is an implementation flowchart of the noise reduction method for controlling earphones provided by the embodiment of the present invention, and is described in detail as follows:

[0025] In step S101, using the terminal microphone to collect the noise signal of the environment;

Embodiment approach

[0026] 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:

[0027] The first implementation mode:

[0028] Every preset detection interval, the terminal microphone is used to collect the noise signal of the environment.

[0029] 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 .

[0030] The second implementation mode:

[0031] 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.

[0032] It should be noted that since the distance from the geographical location where the noise sig...

Embodiment 2

[0051] This embodiment describes the implementation process of configuring the noise signal processing model, which is described in detail as follows:

[0052] Use the pre-configured noise signal processing model to process the collected noise signal, before generating the judgment result, including:

[0053] 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;

[0054] Wherein, the decibel processing model is:

[0055] dB value ≥ τ dB value τ ,

[0056] The dB value is the decibel of the noise signal, and the τ is the preset decibel threshold for openin...

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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 [0001] 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 [0002] 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. [0003] 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. [0004] However, the exist...

Claims

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Application Information

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IPC IPC(8): H04R3/00H04R1/10
Inventor 宋亚楠吴海全师瑞文耿锡年杜国忠徐嘉云
Owner SHENZHEN GRANDSUN ELECTRONICS
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