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Multiband phase-vocoder for the modification of audio or speech signals
Multiband phase-vocoder for the modification of audio or speech signals
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机译:多频带相位声码器,用于修改音频或语音信号
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摘要
A method and apparatus to inexpensively and efficiently process audio and speech signals. A method for processing a signal having at least one region of interest is provided. The method begins by dividing the signal into a plurality of sub-band signals, wherein a selected sub-band signal includes the region of interest. The selected sub-band is processed by a phase vocoder to produce a vocoder output signal. Next, at least a portion of the subbands are time-aligned with the vocoder output signal. Finally, the aligned sub-band signals and the vocoder output signal are combined to form an output signal.
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