Audio restoration method and device, equipment and medium

A repair method and audio technology, applied in speech analysis, instruments, etc., can solve the problems of difficult to achieve audio repair effect, large amount of computation, long repair time, etc., and achieve fast real-time audio repair, low computation amount, and shortened repair time. Effect

Pending Publication Date: 2021-09-17
BEIJING ZITIAO NETWORK TECH CO LTD
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  • Abstract
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Problems solved by technology

[0002] Audio transmission is involved in scenarios such as audio and video conferences, webcasts, and online courses, but audio clipping (clamping) may occur due to various reasons such as audio equipment, recording methods, and recording occasions, resulting in audio clipping. distortion
For example, when the gain of the microphone device used by the user is high and the volume of the playback device is set too high, the size of the near-end voice signal and the far-end echo signal collected by the microphone will easily exceed the threshold and the audio waveform will be clipped. That is,

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  • Audio restoration method and device, equipment and medium
  • Audio restoration method and device, equipment and medium
  • Audio restoration method and device, equipment and medium

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Embodiment Construction

[0027] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0028] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

[0029] The audio clipping phenomenon will cause audio distortion. In the clipping position of the audio, the part of the continuous waveform exceeding the threshold (such as ±32767) will be truncated. The truncated part can also be called the clipping interval or clipping area, which is prone to ...

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Abstract

The embodiment of the invention relates to an audio restoration method and device, equipment and a medium. The method comprises the following steps: acquiring an audio frame signal to be processed; detecting a wave cutting interval existing in the audio frame signal, wherein the wave cutting interval comprises a plurality of continuous wave cutting points, and the wave cutting points are signal points of which the amplitudes exceed a preset threshold value; judging whether the detected wave cutting interval meets a specified interpolation condition or not according to a non-wave cutting point close to the wave cutting interval; and if yes, repairing the cut wave interval by adopting a specified interpolation method based on the non-cut wave point. According to the audio repairing method provided by the embodiment of the invention, the required operand is very low, so that the repairing time can be greatly shortened, and a quick and real-time audio repairing effect can be achieved.

Description

technical field [0001] The present disclosure relates to the technical field of audio processing, and in particular to an audio restoration method, device, equipment and medium. Background technique [0002] Audio transmission is involved in scenarios such as audio and video conferences, webcasts, and online courses, but audio clipping (clamping) may occur due to various reasons such as audio equipment, recording methods, and recording occasions, resulting in audio clipping. distortion. For example, when the gain of the microphone device used by the user is high and the volume of the playback device is set too high, the size of the near-end voice signal and the far-end echo signal collected by the microphone will easily exceed the threshold and the audio waveform will be clipped. That is, the portion of the waveform that exceeds the threshold is truncated. [0003] Most of the related technologies use more complex methods for audio restoration, such as using sparse synthes...

Claims

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Application Information

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IPC IPC(8): G10L21/0208G10L25/51
CPCG10L21/0208G10L25/51G10L2021/02082
Inventor 王鹏朱霜霜高华
Owner BEIJING ZITIAO NETWORK TECH CO LTD
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