

Zsa.descriptors is a library for realtime descriptors analysis. 
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zsa.bark~

External 

Bark coefficients

zsa.centroid~

External 

Spectral centroid is the barycentre of spectra.

zsa.decrease

External 

decrease reports the amount of spectral magnitude decreasing.

zsa.decrease~

External 

decrease reports the amount of spectral magnitude decreasing.

zsa.energy~

External 

Calculater the energy of each Frequency Bin (r * r + i * i).

zsa.flatness~

External 

Spectral flatness of key frequency bands.

zsa.flux~

External 

Calculate spectral flux (difference of energy between frames)

zsa.freqpeak~

External 

Extract a list of pairs Frequence/Amplitude

zsa.fund

External 

Estimate fundamental frequency in a list of Frequency / Amplitude Pairs

zsa.kurtosis~

External 

Spectral kurtosis gives a measure of the flatness of a spectra around its baricenter

zsa.mel~

External 

Mel Coefficients

zsa.rolloff~

External 

The spectral rolloff point is the frequency so that x% of the signal falls below this frequency

zsa.skewness~

External 

Spectral skewness gives a measure of the asymmetry of a spectra around its baricenter

zsa.slope

External 

spectral slope estimation of the amount of spectral magnitude decreasing, computed by a linear regression on numeric spectra list

zsa.slope~

External 

Spectral slope is an estimation of the amount of spectral magnitude decreasing, computed by a linear regression on the magnitude spectra.

zsa.spread~

External 

spectral spread is the second moment, i.e., the variance around the spectral baricenter

zsa.ampstats~

External 

Report min/mean/max/sum of a signal vector or a FFT frame

zsa.dct

External 

Outputs Discrete Cosine Transform

zsa.dist

External 

Calculates various kind of distance on lists (Euclidian, Minkowsky, Cosine, Covariance, KullbackLeibler)

zsa.mfcc~

External 

Outputs Melfrequency cepstral coefficients as a list.

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