espnet2.layers.augmentation.corrupt_phase

source

espnet2.layers.augmentation.corrupt_phase(waveform, sample_rate, scale: float = 0.5, n_fft: float = 0.032, win_length: float | None = None, hop_length: float = 0.008, window: str | None = 'hann')

Adding random noise to the phase of input waveform.

• Parameters:
  • waveform (torch.Tensor) – audio signal (…, time)
  • sample_rate (int) – sampling rate in Hz
  • scale (float) – scale factor for the phase noise
  • n_fft (float) – length of FFT (in second)
  • win_length (float or None) – The window length (in second) used for STFT If None, it is treated as equal to n_fft
  • hop_length (float) – The hop size (in second) used for STFT
  • window (str or None) – The windowing function applied to the signal after padding with zeros
• Returns: phase-corrupted signal (…, time)
• Return type: ret (torch.Tensor)