Audio noise reduction filtering method, noise reduction filtering device, electronic equipment and storage medium

An audio noise reduction and audio input technology, applied in speech analysis, instruments, etc., can solve the problems of speech loss, speech hyphenation, etc., to reduce noise, ensure speech quality, and improve speech quality.

Pending Publication Date: 2022-05-13
ZHEJIANG DAHUA TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0002] In real life, when people use mobile terminals such as mobile phones to turn on hands-free calls or video conferencing terminals for video conferences, there are various noises in the scene environment, and the microphone will also collect environmental noise in addition to the target signal, so It is necessary to use filtering technology to suppress the noise. However, when the signal-to-noise ratio of the current noise reduction technology becomes low, the voice will be seriously lost, and the processed voice will appear hyphenated.

Method used

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  • Audio noise reduction filtering method, noise reduction filtering device, electronic equipment and storage medium
  • Audio noise reduction filtering method, noise reduction filtering device, electronic equipment and storage medium
  • Audio noise reduction filtering method, noise reduction filtering device, electronic equipment and storage medium

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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. 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] The present application first proposes a noise reduction filtering device 100, such as figure 1 as shown, figure 1 It is a schematic structural diagram of an embodiment of the noise reduction filter device of the present application. The noise reduction filter device 100 of this embodiment includes:

[0024] The preset neural network module 110 is used to obtain the characteristic parameters of the audio input signal; the calculation modul...

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Abstract

The invention discloses an audio noise reduction filtering method, a noise reduction filter device, electronic equipment and a computer storage medium, and relates to the technical field of audio signal processing. The method comprises the following steps: acquiring characteristic parameters of an audio input signal by using a preset neural network; calculating a filtering weight coefficient based on the characteristic parameters; processing the audio input signal based on the filtering weight coefficient to obtain a filtered audio signal; calculating a cost value based on the filtered audio signal and the real signal; and training a preset neural network by using the cost value. Through the above mode, the audio noise reduction filtering method can effectively reduce the noise in an audio system and improve the voice quality.

Description

technical field [0001] The present application relates to the technical field of audio signal processing, in particular to an audio noise reduction filtering method, a noise reduction filtering device, electronic equipment, and a computer storage medium. Background technique [0002] In real life, when people use mobile terminals such as mobile phones to turn on hands-free calls or video conferencing terminals for video conferences, there are various noises in the scene environment, and the microphone will also collect environmental noise in addition to the target signal, so It is necessary to use filtering technology to suppress the noise. However, when the signal-to-noise ratio of the current noise reduction technology becomes low, the speech will be seriously lost, and the processed speech will appear hyphenated. Contents of the invention [0003] The technical problem mainly solved by this application is to provide an audio noise reduction filtering method, noise reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0208G10L21/0224G10L25/30
CPCG10L21/0208G10L25/30G10L21/0224G10L2021/02087
Inventor 黄景标陈庭威林聚财殷俊
Owner ZHEJIANG DAHUA TECH CO LTD
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