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Audio signal processing method and device, terminal equipment and storage medium

An audio signal and processing method technology, applied in the field of signal processing, can solve problems such as separation and noise reduction effects that are difficult to meet user needs

Pending Publication Date: 2020-11-24
BEIJING XIAOMI PINECONE ELECTRONICS CO LTD
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Problems solved by technology

However, in the process of noise reduction processing, it is often difficult to separate the noise component in the signal from the pure speech signal, so the noise reduction effect is difficult to meet the increasing user needs

Method used

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  • Audio signal processing method and device, terminal equipment and storage medium
  • Audio signal processing method and device, terminal equipment and storage medium
  • Audio signal processing method and device, terminal equipment and storage medium

Examples

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Embodiment Construction

[0082] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0083] figure 1 It is a flowchart of a method for processing an audio signal according to an exemplary embodiment, such as figure 1 As shown, the method includes the following steps:

[0084] Step S101, acquiring original noisy signals collected by at least two audio signal channels;

[0085] Step S102. According to the at least two original noisy signals, distinguish a noise signal frame and...

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Abstract

The invention relates to an audio signal processing method and device, terminal equipment and a storage medium. The method comprises the following steps: acquiring original noise signals acquired by at least two audio signal channels; distinguishing a noise signal frame and a voice signal frame in a time domain according to the at least two original noisy signals, wherein the voice signal frame comprises a voice signal and a noise signal which are superposed in a time domain; the noise signal frame comprises noise generated when the voice signal is silent; determining the power of the voice signal and the power of the noise signal according to the noise signal frame and the voice signal frame; determining a noise reduction coefficient according to the power of the voice signal and the power of the noise signal; and based on the noise reduction coefficient, performing noise reduction on the original noise signals.

Description

technical field [0001] The present disclosure relates to the technical field of signal processing, and in particular, to an audio signal processing method and device, a terminal device, and a storage medium. Background technique [0002] With the continuous development of communication technology and Internet technology, the processing of multimedia information has become an important research direction of information communication. In order to achieve clearer and high-quality communication or data transmission, it is necessary to perform noise reduction processing on audio signals. Noise reduction processing can usually use filtering to remove noise components in the signal, thereby improving signal quality. However, in the process of noise reduction processing, it is often difficult to separate the noise component in the signal from the pure speech signal, so the noise reduction effect is difficult to meet the increasing user requirements. Contents of the invention [...

Claims

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Application Information

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IPC IPC(8): G10L21/0216G10L21/0272G10L19/008G10L25/30
CPCG10L21/0216G10L21/0272G10L19/008G10L25/30
Inventor 王林章何梦楠操陈斌
Owner BEIJING XIAOMI PINECONE ELECTRONICS CO LTD
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