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介绍了一种基于语音信号中前后波形相似性对变速播放语音进行处理的方法，并对变速语音的音调进行了恢复。结果表明，该方法能实现变速语音不变调的效果。
A method for processing variable speed playing voice based on similarity of front and back waveforms in speech signal is introduced and the pitch of variable speed speech is restored. The results show that this method can achieve the effect of variable speed speech invariant.