Voice noise reduction method, equipment and storage medium

A voice noise reduction and equipment technology, applied in the field of noise reduction, can solve problems such as poor call quality and poor noise reduction effect

Active Publication Date: 2019-03-01
GEER TECH CO LTD
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Problems solved by technology

[0004] However, the noise reduction effect of this method is not good, and the call quality is poor

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  • Voice noise reduction method, equipment and storage medium
  • Voice noise reduction method, equipment and storage medium
  • Voice noise reduction method, equipment and storage medium

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[0022] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0023] In the prior art, a microphone array beamforming method is usually used to optimize call quality. Using microphone array beamforming can only pick up the sound signal in the direction of the sound source, which can reduce the interference of noise signals in other directions, thereby eliminating part of the noise signal other than the voice sig...

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Abstract

An embodiment of the invention provides a voice noise reduction method, equipment and a storage medium, wherein the method comprises the steps of acquiring a voice signal which is acquired by a microphone; according to the voice signal and a transfer function between a voice source and a microphone, determining a source signal emitted from the voice source; and if a target standard voice signal which matches the source signal exists in at least one standard voice signal, performing filtering on the voice signal which is acquired by the microphone in reference to the target standard voice signal. In the voice noise reduction method, multiple types of voice signals in the voice signal which is acquired by the microphone can be filtered, and a useful signal acquired after noise reduction is same with a standard voice signal, thereby effectively preventing interference of the noise signal to voice processing.

Description

technical field [0001] The present application relates to the technical field of noise reduction, and in particular to a speech noise reduction method, device and storage medium. Background technique [0002] During a call, the microphone collects the voice signal. Since the microphone for collecting the voice signal usually needs to be exposed to the external environment, noise signals in the external environment will also be collected by the microphone. As a result, the speech signal during the call is seriously interfered by the noise signal. [0003] In the prior art, a microphone array beamforming method is usually used to optimize call quality. The beamforming of the microphone array can only pick up the sound signal in the direction of the sound source, which can reduce the interference of noise signals in other directions, thereby eliminating part of the noise signal other than the voice signal. [0004] However, the noise reduction effect of this method is not goo...

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Application Information

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IPC IPC(8): G10L21/0208G10L21/0216G10L21/028
CPCG10L21/0208G10L21/0216G10L21/028G10L2021/02163
Inventor 张晓红
Owner GEER TECH CO LTD
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