Audio noise reduction method and device, electronic equipment and medium

Abstract

The embodiment of the invention provides an audio noise reduction method and device, electronic equipment and a medium. The audio noise reduction method provided by the invention comprises the following steps: separating a first accompaniment signal and a first voice signal from an audio signal to be subjected to noise reduction; filtering the first accompaniment signal to obtain a second accompaniment signal; filtering the first voice signal to obtain a second voice signal; and synthesizing a noise reduction audio signal according to the second accompaniment signal and the second voice signal. The invention provides an audio noise reduction method. Noise reduction is carried out on an accompaniment signal and a voice signal after separation; and finally, the noise-reduced accompaniment signal and the voice part signal are synthesized again. The method is advantaged in that noise is effectively removed, better voice quality is realized, severe distortion of the processed audio signal caused by inhibition of some high frequency portions of the music accompaniment by the voice noise reduction algorithm can be effectively avoided, and better voice experience is provided for game or live broadcast users.

Description

technical field [0001] The present invention relates to the technical field of audio noise reduction, in particular to an audio noise reduction method, device, electronic equipment and medium. Background technique [0002] With the rapid development of online games and live broadcasts, many anchors or game players will play background music while talking. In this case, the microphone picks up human speech, in-game music, and background noise in a room or outdoors. [0003] At present, the noise reduction algorithm is mainly designed for speech, and there is no noise reduction algorithm specifically for music. As for the speech noise reduction algorithm, its principle basically includes three parts: spectral subtraction, Wiener filter method and statistical method filter method. At the same time, the noise estimation algorithm must also be introduced in the construction of the noise reduction algorithm. Therefore, the accuracy of the noise estimation and the selection of th...

AI Technical Summary

Problems solved by technology

[0004] However, due to the large difference in bandwidth and other signal characteristics between music accompaniment and speech, if the noise reduction algorithm for speech is directly applied to the music accompaniment, some high-frequency parts on the music accompaniment will be suppressed by the noise reduction algorithm out, resulting in severe distortion of the processed audio signal

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