Transforms

class untwist.transforms.STFT(window=None, fft_size=1024, hop_size=512)

Short-Time Fourier Transform Input should be a mono Wave, output is a complex spectrogram

process(*args)

class untwist.transforms.ISTFT(window=None, fft_size=1024, hop_size=512, sample_rate=44100)

Inverse Short-Time Fourier Transform Input should be a complex spectrogram, output is mono Wave

process(*args)

class untwist.transforms.QERBT(n_bins=350, w_len=2048, sr=44100)

Quadratic ERB transform processor, with independent window length and number of bins. Returns a Spectrogram.

make_filterbank()

make_signal_window(n_frames)

process(*args)

class untwist.transforms.QERBFilter(n_bins=350, w_len=2048, sr=44100)

Filterbank based on the QERBT transform.

make_bin_weights()

process(wave, W)