maad.util.entropy

maad.util.entropy(x, axis=0)[source]

Compute the entropy of a vector (waveform) or matrix (spectrogram).

Parameters:

xndarray of floats: x is a vector (1d) or a matrix (2d)
axisint, optional, default is 0: select the axis where the entropy is computed if x is a vector, axis=0 if x is a 2d ndarray, axis=0 => rows, axis=1 => columns

Returns:

Hfloat or ndarray of floats: entropy of x

Examples

>>> from maad import sound, util
>>> s, fs = sound.load('../data/spinetail.wav')
>>> H = util.entropy(s)
>>> print ('Entropy is %2.4f' %H) 
Entropy is 0.9998 