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Method for realizing voice reduction through rapid voice waveform repairing

A sound and waveform technology, applied in the field of sound wave repair, can solve problems such as high time cost, discontinuity, sound distortion, etc., and achieve the effect of avoiding the amount of calculation, realizing convenience, and saving resources.

Inactive Publication Date: 2011-05-25
蔡镇滨 +1
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  • Abstract
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  • Claims
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Problems solved by technology

These glitches and jitters will cause sound distortion and discontinuity, seriously affecting the quality of sound transmission
[0003] In view of the above problems, the usual processing method is to use Fourier transform to calculate, such as the method of patent application CN200910071941.3, to obtain an audio signal with a smooth curve, but because the audio contains a large number of audio files, it is not a pure audio curve. It takes a lot of resources to realize the processing through Fourier transform, and the processing time cost is very high, and satisfactory processing results cannot be obtained.

Method used

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  • Method for realizing voice reduction through rapid voice waveform repairing
  • Method for realizing voice reduction through rapid voice waveform repairing
  • Method for realizing voice reduction through rapid voice waveform repairing

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Embodiment Construction

[0027] Below, the specific implementation of the present invention will be described in detail in conjunction with the accompanying drawings.

[0028] figure 1 Shown, is a kind of schematic diagram that the present invention realizes, combines figure 2 Shown, concrete implementation steps of the present invention include:

[0029] 1. Signal gain adjustment.

[0030] For the input audio data, first perform Fourier transform, and then perform gain adjustment to meet the requirements of the following processing.

[0031] 2. Filter processing.

[0032] Filtering processing includes two aspects of processing:

[0033] 1) Low-pass filtering: remove high-frequency components to facilitate trend smoothing in the future.

[0034] 2) High-pass filtering: remove low-frequency components, which is convenient for interpolation and smoothing in the future.

[0035] Filtering can partially remove burrs. After performing high and low pass filtering respectively, different smoothing is...

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Abstract

The invention discloses a method for realizing voice reduction through rapid voice waveform repairing. The method comprises the steps of filter processing, smooth processing, audio energy analysis, tread processing and outputting. By the method, an audio curve can be effectively reduced through the smooth processing, and only burrs and jitter in the audio curve can be removed, so that a large amount of computation brought by Fourier transform is avoided, and the audio curve is reduced by repairing discontinuity and compensating the jitter.

Description

technical field [0001] The present invention relates to an audio processing method, specifically a method for sound wave restoration. Background technique [0002] Audio data is actually a wave formed by the superposition of sine waves of many frequencies. Audio data appears to be irregular when reduced to curves. We restore low bit rate audio files or audio files with file damage after compression to curves, and found that the curves will have different degrees of glitches and relatively large jitters. These glitches and jitters will cause sound distortion and discontinuity, seriously affecting the quality of sound transmission. [0003] In view of the above problems, the usual processing method is to use Fourier transform to calculate, such as the method of patent application CN200910071941.3, to obtain an audio signal with a smooth curve, but because the audio contains a large number of audio files, it is not a pure audio curve. A large amount of resources are required...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L19/00G10L19/26
Inventor 蔡镇滨马平
Owner 蔡镇滨
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