espnet.transform.spec_augment.freq_mask

source

espnet.transform.spec_augment.freq_mask(x, F=30, n_mask=2, replace_with_zero=True, inplace=False)

freq mask for spec agument

• Parameters:
  • x (numpy.ndarray) – (time, freq)
  • n_mask (int) – the number of masks
  • inplace (bool) – overwrite
  • replace_with_zero (bool) – pad zero on mask if true else use mean