donationware http://www.e--j.com/			Zsa.descriptors is a library for real-time 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 roll-off 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, Kullback-Leibler)
zsa.mfcc~	External		Outputs Mel-frequency cepstral coefficients as a list.
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