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发明公开
CN103871414A 一种多声道语音信号的时标调制方法和装置 失效 - 权利终止 转让

一种多声道语音信号的时标调制方法和装置
摘要：
本发明公开了一种多声道语音信号的时标调制方法，所述方法包括：获取多声道语音的输入信号以及相关的初始化信息；根据所述时标调制模式更新所述每个声道初始的信号累计长度，得到每个声道时标调制后的信号累计长度；根据所述每个声道时标调制后的信号累计长度得到时标调制后信号累计长度最长的信号累计长度和最短的信号累计长度；若所述时标调制后最长的信号累计长度和所述最短的信号累计长度的差值不大于预设长度阈值，则输出所述每个声道时标调制后的信号。该方法能够使得多声道语音信号在时标调制后信号质量在感知听觉上仍能保持较高水准。本发明还公开了一种多声道语音信号的时标调制装置。
摘要（英）：

The invention discloses a time scaling method of multichannel voice signals. The method comprises: obtaining the input signals of multichannel voice and correlated initialization information; according to a time scaling mode, updating the initial signal accumulation length of each sound channel, and obtaining a signal accumulation length after time scaling of each sound channel; according to the signal accumulation length after the time scaling of each sound channel, obtaining a largest signal accumulation length and a smallest signal accumulation length in terms of signal accumulation length after the time scaling; and if the difference between the largest signal accumulation length and the smallest signal accumulation length after the time scaling is not greater than a preset length threshold, outputting signals after the time scaling of each sound channel. By using the method, the signal quality of the multichannel voice signals can still be maintained at a quite high level after the time scaling. The invention also discloses a time scaling apparatus of multichannel voice signals.

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