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mindspore.dataset.audio.PhaseVocoder
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.. py:class:: mindspore.dataset.audio.PhaseVocoder(rate, phase_advance)
给定STFT张量在不修改速率系数的情况下加速音高。
参数:
- **rate** (float) - 加速系数。
- **phase_advance** (numpy.ndarray) - 每个滤波器的预期相位前进形状为freq, 1