transform_frequencymasking.RdApply masking to a spectrogram in the frequency domain.
transform_frequencymasking(freq_mask_param, iid_masks)(int): maximum possible length of the mask. Indices uniformly sampled from [0, freq_mask_param).
(bool, optional): whether to apply different masks to each
example/channel in the batch. (Default: FALSE)
This option is applicable only when the input tensor is 4D.
not implemented yet.