nnAudio.Spectrogram

Module containing all the spectrogram classes

Functions

rfft_fn

Classes

CFP	This is the modified version of Combined_Frequency_Periodicity().
CQT	An abbreviation for CQT1992v2().
CQT1992	This alogrithm uses the method proposed in [1], which would run extremely slow if low frequencies (below 220Hz) are included in the frequency bins.
CQT1992v2	This function is to calculate the CQT of the input signal.
CQT2010	This algorithm is using the resampling method proposed in [1].
CQT2010v2	This function is to calculate the CQT of the input signal.
Combined_Frequency_Periodicity	Vectorized version of the code in https://github.com/leo-so/VocalMelodyExtPatchCNN/blob/master/MelodyExt.py.
DFT	Experimental feature before torch.fft was made avaliable.
Gammatonegram	This function is to calculate the Gammatonegram of the input signal.
Griffin_Lim	Converting Magnitude spectrograms back to waveforms based on the “fast Griffin-Lim”[1].
MFCC	This function is to calculate the Mel-frequency cepstral coefficients (MFCCs) of the input signal.
MelSpectrogram	This function is to calculate the Melspectrogram of the input signal.
STFT	This function is to calculate the short-time Fourier transform (STFT) of the input signal.
STFTBase	STFT and iSTFT share the same inverse_stft function
iSTFT	This class is to convert spectrograms back to waveforms.