espnet2.utils.griffin_lim.griffin_lim

source

espnet2.utils.griffin_lim.griffin_lim(spc: ndarray, n_fft: int, n_shift: int, win_length: int | None = None, window: str | None = 'hann', n_iter: int | None = 32) → ndarray

Convert linear spectrogram into waveform using Griffin-Lim.

• Parameters:
  • spc – Linear spectrogram (T, n_fft // 2 + 1).
  • n_fft – The number of FFT points.
  • n_shift – Shift size in points.
  • win_length – Window length in points.
  • window – Window function type.
  • n_iter – The number of iterations.
• Returns: Reconstructed waveform (N,).