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Audio signal transient noise suppression method and system as well as storage medium

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

Active Publication Date: 2019-11-26
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 and system as well as storage medium
  • Audio signal transient noise suppression method and system as well as storage medium
  • Audio signal transient noise suppression method and system as well as storage medium

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Embodiment Construction

[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 invention provides an audio signal transient noise suppression method and system as well as a storage medium. The method comprises the following steps: preprocessing an audio signal, then calculating energy difference data of the audio signal on a time domain with the preprocessed audio signal, and calculating frequency spectrum difference data of the audio signal on a frequency domain; and judging whether transient noise exists in the audio signal or not according to the energy difference data and the frequency spectrum difference data, and suppressing the transient noise. Through adoption of the audio signal transient noise suppression method and system, the transient noise in the audio signal can be suppressed effectively, and the call quality of a voice system is improved.

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 Applications(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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