如何使用DES编辑音频(.mp3)文件并消除咔嗒声，杂音和笑话 [英] How can I edit an audio(.mp3) file with DES and remove clicks, noise and jokes

问题描述

亲爱的编码员，我是西蒙.

正在撰写文章，以寻求有关编辑(.mp3文件)的帮助(消除不必要的噪音，静音等).我被带到下面的网站.我设法浏览了代码片段，但尚未成功.我可能会缺少什么?你能指导我吗?

http://msdn.microsoft.com/zh-CN/library/dd375458(VS.85).aspx


Simon.

Dear Coders, am Simon.

Am writing to seek assistance in editing(removing unwanted noise, silence,... ) a .mp3 file. I was led to the website below. I''ve managed to look through the code snippets, and not yet succeeded . What could I be missing? Would you possibly guide me?

http://msdn.microsoft.com/en-us/library/dd375458(VS.85).aspx


Simon.

推荐答案

除非非常特殊的情况，否则这是不可能的(就像从有色水中去除墨水一样).

独立于代码，要消除噪声"和其他有害的声音源"，您至少需要一个与这些噪声相关的辅助独立声源，以精心设计一个预测滤波器，以估计主要噪声源中的噪声波动.

除非您的噪音"适合不与您的声音重叠的带宽:在这种情况下，低通或hipass滤波器就足够了.

Unless of very particular cases, this is impossible (it''s like to remove the ink from a colored water).

Independently on code, to remove "noise" and "other unwanted sources of sound" you need at least a secondary independent source correlated with those noises to elaborate a prediction filter that estimate the wave of the noise in the primary source.

Unless your "noises" fits a bandwidth that don''t overlap your sounds: in that case a lowpass or hipass filter can be enough.

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