pyampact.speechDescriptorsUtils.compute_dfa

pyampact.speechDescriptorsUtils.compute_dfa(y, min_window=4, max_window=None, n_windows=20)[source]

Compute DFA (Detrended Fluctuation Analysis) scaling component (alpha) for 1D signal y

Parameters:

  • y (array) – speech segment waveform

  • min_window (max_window) – smallest window size (samples); default = 4

  • min_window – largest window size (samples); default = len(y)//4

  • n_windows (int) – number of window sizes to test; default = 20

Returns:

alpha – DFA scaling exponent

Return type:

float