espnet2.utils.griffin_lim.Spectrogram2Waveform

source

class espnet2.utils.griffin_lim.Spectrogram2Waveform(n_fft: int, n_shift: int, fs: int | None = None, n_mels: int | None = None, win_length: int | None = None, window: str | None = 'hann', fmin: int | None = None, fmax: int | None = None, griffin_lim_iters: int | None = 8)

Bases: object

Spectrogram to waveform conversion module.

Initialize module.

• Parameters:
  • fs – Sampling frequency.
  • n_fft – The number of FFT points.
  • n_shift – Shift size in points.
  • n_mels – The number of mel basis.
  • win_length – Window length in points.
  • window – Window function type.
  • f_min – Minimum frequency to analyze.
  • f_max – Maximum frequency to analyze.
  • griffin_lim_iters – The number of iterations.