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Audio signal transient noise suppression method, system and storage medium

An audio signal and noise suppression technology, applied in the field of audio signal processing, can solve the problems affecting the call quality of the voice system, and achieve the effect of improving the call quality and suppressing transient noise.

Active Publication Date: 2022-03-22
ZHEJIANG DAHUA TECH CO LTD
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Problems solved by technology

[0004] In order to solve the technical problem that the transient noise in the audio signal affects the call quality of the voice system, the present application provides a method for suppressing the transient noise of the audio signal, including:

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  • Audio signal transient noise suppression method, system and storage medium
  • Audio signal transient noise suppression method, system and storage medium
  • Audio signal transient noise suppression method, system and storage medium

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[0058] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present invention, but not to limit the scope of the present invention. Likewise, the following embodiments are only some but not all of the embodiments of the present invention, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0059] see figure 1 , is a flow chart of the first embodiment of the audio signal transient noise suppression method of the present invention.

[0060] A transient noise suppression method for an audio signal, comprising:

[0061] Step S01, preprocessing the audio signal;

[0062]When the user receives voice information, in many cases such an audio signal will be mixed with a lot of noise, and the noise is divided into steady-state noise, t...

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Abstract

The present application provides an audio signal transient noise suppression method, system and storage medium, through preprocessing the audio signal, and then using the preprocessed audio signal to calculate the energy difference data of the audio signal in the time domain, and then in the frequency domain Calculate the spectrum difference data of the audio signal; use the energy difference data and the spectrum difference data to judge whether there is transient noise in the audio signal and suppress the transient noise. It can effectively suppress the noisy transient noise in the audio signal and improve the call quality of the voice system.

Description

technical field [0001] The present invention relates to the technical field of audio signal processing, in particular to an audio signal transient noise suppression method, system and storage medium. Background technique [0002] Speech is the main way of information exchange for human beings. However, there are various noises in our living environment. When we use communication equipment for voice communication, these noises will seriously affect the voice quality. In voice processing systems such as in-vehicle systems, conference calls, and multimedia conferences, the signal picked up by the microphone is usually a noisy voice signal due to factors such as reverberation, background noise, and interference. In this way, not only the intelligibility of speech is affected, but also the overall performance of the speech processing system is affected. Therefore, effective noise suppression is required to enhance the quality of the speech signal. [0003] In order to ensure th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L21/0208G10L21/0232G10L25/78
CPCG10L21/0208G10L21/0232G10L25/78G10L2025/783
Inventor 陈烈黄景标
Owner ZHEJIANG DAHUA TECH CO LTD
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