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Earphone uplink denoising method

A technology for noise reduction and earphones, which is applied in the direction of earphones to reduce environmental noise, earpiece/earphone accessories, electrical components, etc., and can solve problems such as unstable uplink noise reduction performance

Active Publication Date: 2017-11-24
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide an earphone uplink noise reduction method to solve the problem of unstable uplink noise reduction performance in the existing uplink noise reduction method

Method used

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  • Earphone uplink denoising method

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] In view of the problem of unstable uplink noise reduction performance in the aforementioned existing headphone uplink noise reduction method, the present invention multiplexes the noise reduction microphone in the earpiece on the left or right side of the earphone as the first uplink noise reduction microphone, and uses the call microphone as the second uplink noise reduction microphone. Two uplink noise-cancelling microphones, and then compare the voice signal picked up by the second uplink noise-cancelling microphone with a preset threshold, where the preset threshold is the energy value of the voice signal picked up by the second uplink noise-cancelling microphone or Sensitivity value; when the voice signal picked up by the second uplink noise reduction microphone is less than the preset threshold, use the first uplink noise reduction...

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Abstract

An earphone uplink denoising method provided by the present invention comprises the steps of reusing a denoising microphone in a left or right receiver of an earphone as a first uplink denoising microphone, and taking a conversation microphone as a second uplink denoising microphone; obtaining a voice signal picked up by the second uplink denoising microphone, and comparing the voice signal with a preset threshold value, wherein the preset threshold value is a preset energy value or a sensitivity value of the voice signal picked up by the second uplink denoising microphone; if the voice signal is less than the preset threshold value, adopting the first uplink denoising microphone and the second uplink denoising microphone to eliminate the noise of the voice signal; otherwise, adopting the second uplink denoising microphone to eliminate the noise of the voice signal. According to the present invention, the problem that the position of the conversation microphone is not fixed, so that the earphone uplink denoising performance fluctuates, can be avoided, thereby improving the conversation voice quality.

Description

technical field [0001] The present invention relates to the technical field of acoustics, and more specifically, to an uplink noise reduction method for earphones. Background technique [0002] With the widespread application of high-quality smart phones, pads and other portable electronic products, people have higher and higher requirements for the acoustic parameters of earphones that can be used in conjunction with them. With the introduction of Type C and Lightning interfaces, earphones are gradually converting to digital mode, and earphones with ANC (Active Noise Control, active noise control system) functions can be realized on digital earphones. [0003] In the current ANC earphones, there are mainly two ways to implement the noise reduction function. One is to realize the uplink noise reduction function through the call microphone; Uplink noise reduction. Although the method of multiplexing the microphones installed in the left and right earphone earpieces for upli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/10
CPCH04R1/1083H04R2410/01
Inventor 徐敏龙张献春徐世超
Owner GOERTEK INC
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