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可变速率的语音变调效果

时间:2015-04-26 11:00:42      阅读:173      评论:0      收藏:0      [点我收藏+]

标签:变调

Time stretching is the process of changing the speed or duration of an audio signal without affecting its pitch. Pitch scaling or pitch shifting is the opposite: the process of changing the pitch without affecting the speed. Similar methods can change speed, pitch, or both at once, in a time-varying way.

These processes are used, for instance, to match the pitches and tempos of two pre-recorded clips for mixing when the clips cannot be reperformed or resampled. (A drum track containing no pitched instruments could be moderately resampled for tempo without adverse effects, but a pitched track could not). They are also used to create effects such as increasing the range of an instrument (like pitch shifting a guitar down an octave).

not constant,variable pitch scale factor。

原始语音

 

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随时间变化的变调因子规整。

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可变速率的语音变调效果

标签:变调

原文地址:http://blog.csdn.net/weiqiwu1986/article/details/45285765

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