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Method and device for removing noise by adopting multiple microphones

A technology for eliminating noise and multiple microphones, applied in microphones, microphone ports/microphone accessories, transducer circuits, etc., can solve the problems of complex structure, low noise reduction efficiency, and high production cost of noise reduction devices, and achieve structural The effect of simplicity, high noise reduction efficiency and low production cost

Pending Publication Date: 2016-06-01
SHENZHEN UIKIWI TECH CO LTD
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  • Abstract
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Problems solved by technology

However, the noise reduction device with this structure has problems such as complex structure, high production cost, low noise reduction efficiency, and changes in sound quality.

Method used

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  • Method and device for removing noise by adopting multiple microphones
  • Method and device for removing noise by adopting multiple microphones
  • Method and device for removing noise by adopting multiple microphones

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Embodiment Construction

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", etc. are based on The orientation or positional relationship shown in the drawings is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as Restrictions on the invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that the terms "installation", "connection", and "connection" should be interpreted broadly unless otherwise clearly specified and limited. For ...

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Abstract

The invention discloses a method and a device for removing noise by adopting multiple microphones. The method comprises the steps of receiving first sound signals from a first direction; receiving second sound signals from a second direction which is different from the first direction; comparing sound volumes in the first sound signals and the second sound signals; carrying out volume noise reduction processing for sound signals with the same volumes in both the first sound signals and the second sound signals; and storing a sound frequency of a person when speaking, comparing the stored sound frequency with a sound frequency in the first sound signals and the second sound signals, and carrying out frequency noise reduction processing for the sound with the frequency outside the scope of the stored sound frequency of the first sound signals and the second sound signals. As a first microphone and a second microphone are adopted in the method, and a first noise reduction module and a second noise reduction module respectively carry out volume noise reduction processing and frequency noise reduction processing for the first sound signals and the second sound signals, the method and device for removing noise by adopting multiple microphones have the advantages of simple structure, low production cost, high noise reduction efficiency, unchanged tone quality and the like.

Description

Technical field [0001] The present invention relates to the technical field of noise elimination, in particular to a method and device for eliminating noise by using a multi-microphone. Background technique [0002] In industrial production and daily life, there are often excessively noisy environments. The noise of these environments not only damages people's hearing, but also interferes with people's normal calls and communication. For example, when people talk on the phone in a noisy environment such as a bar or KTV, noise and user voice will enter the call microphone together, that is, the microphone will receive both noise and user voice. In order to solve this problem, people invented a noise reduction device that can talk. The principle of the noise reduction device of this structure is to obtain the frequency of the noise through the noise sampling module during the call, and then output a frequency that is the same as the frequency of the noise. The sound waves of the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/08H04R3/00
CPCH04R1/083H04R3/00H04R2410/01
Inventor 张定波张晶宁张洋萄
Owner SHENZHEN UIKIWI TECH CO LTD
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