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Audio processing method and device and storage medium

A technology for audio processing and audio frames, applied in the fields of audio processing methods, devices and storage media, capable of solving problems such as poor noise reduction processing effects, and achieving the effect of improving noise reduction effects

Active Publication Date: 2018-12-14
GUANGZHOU KUGOU COMP TECH CO LTD
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Problems solved by technology

[0005] The embodiment of the present invention provides an audio processing method, device and storage medium, which can solve the problem of poor noise reduction processing effect in the related art

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  • Audio processing method and device and storage medium
  • Audio processing method and device and storage medium

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Embodiment Construction

[0055] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0056] Before the audio processing method provided by the embodiment of the present invention is introduced in detail, the application scenarios and background technologies involved in the embodiment of the present invention are briefly introduced.

[0057] First, the application scenarios involved in the embodiments of the present invention are briefly introduced.

[0058] The audio processing method provided by the embodiment of the present invention can be applied to the scene where the audio is denoised to improve the clarity of the human voice, so that the listener can hear useful information in the audio more clearly. At present, in order to achieve the purpose of noise reduction, it is generally necessary to use some evaluation ...

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Abstract

The invention discloses an audio processing method and device and a storage medium, and belongs to the technical field of audio processing. The method comprises the steps: obtaining the fundamental frequency information, the spectral envelope and the excitation signal phase of a first audio signal to be processed; obtaining a target periodic signal based on the fundamental frequency information, wherein the peak of the target periodic signal is located at the multiplication of the fundamental frequency indicated by the fundamental frequency information; combining the target periodic signal with the excitation signal phase so as to obtain the target excitation signal; and synthesizing the target excitation signal with the spectral envelope so as to obtain a second audio signal. The pure second audio is regenerated based on the periodic characteristic of the first audio so as to achieve the noise reduction effect.

Description

technical field [0001] The present invention relates to the technical field of audio processing, in particular to an audio processing method, device and storage medium. Background technique [0002] In daily life, limited by the recording scene or equipment, the audio generally includes not only human voices, but also a certain degree of noise such as breathing, environmental noise, or equipment noise. In order to improve the clarity of the human voice in the audio, it is necessary to process the audio to achieve noise reduction and other purposes. [0003] In related technologies, generally, a noise reduction algorithm such as spectral subtraction can be used to estimate the noise part in the audio, and then the estimated noise part can be suppressed through different gain models, so as to achieve the noise reduction effect. Makes the vocals in the audio clearer. [0004] However, due to the randomness of noise, it is generally difficult to predict accurately, especially ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L21/0264G10L21/0232G10L25/18
CPCG10L21/0232G10L21/0264G10L25/18
Inventor 肖纯智
Owner GUANGZHOU KUGOU COMP TECH CO LTD
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