libxtract by Jamie Bullock (plugin by Chris Cannam)
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Distributed under the GNU General Public License
Extract the autocorrelation of an audio signal
Extract the average deviation of a range of values
Extract bark coefficients from an audio spectrum
Extract the spectral crest measure of an audio spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Peeters (2003). Distributed under the GNU General Public License
Extract the fundamental frequency of an audio signal
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Jamie Bullock. Distributed under the GNU General Public License
Extract the fundamental frequency of an audio signal (failsafe)
Extract the spectral flatness of an audio spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Tristan Jehan (2005). Distributed under the GNU General Public License
Extract the harmonics from an audio spectrum
Extract the highest value from a given range
Extract the irregularity (type II) of an audio spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Jensen (1999). Distributed under the GNU General Public License
Extract the irregularity (type I) of an audio spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Krimphoff (1994). Distributed under the GNU General Public License
Extract the kurtosis of a range of values
Extract the loudness of an audio signal from its spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Moore, Glasberg et al (2005). Distributed under the GNU General Public License
Extract the lowest value from a given range
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Rabiner. Distributed under the GNU General Public License
Extract the noisiness of an audio spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Tae Hong Park (2000). Distributed under the GNU General Public License
Extract the number of non-zero elements in an input spectrum
Extract the odd-to-even harmonic ratio of an audio spectrum
Extract the spectral peaks from an audio spectrum
Extract the RMS amplitude of an audio signal
Extract the rolloff point of an audio spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Bee Suan Ong (2005). Distributed under the GNU General Public License
Extract the spectral sharpness of an audio spectrum
Extract the skewness of a range of values
Extract the spectral smoothness of an audio spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from McAdams (1999). Distributed under the GNU General Public License
Extract the average deviation of an audio spectrum
Extract the spectral centroid of an audio spectrum
Extract the inharmonicity of an audio spectrum
Extract the kurtosis of an audio spectrum
Extract the skewness of an audio spectrum
Extract the spectral slope of an audio spectrum
Extract the standard deviation of an audio spectrum
Extract the variance of an audio spectrum
Extract the spectral spread of an audio spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Norman Casagrande (2005). Distributed under the GNU General Public License
Extract the standard deviation of a range of values
Extract the sum of the values in a given range
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from J. D. Johnston (1988). Distributed under the GNU General Public License
Extract the tristimulus (type I) of an audio spectrum
Copyright 2006 Jamie Bullock, plugin Copyright 2006 Queen Mary, University of London. Method from Pollard and Jansson (1982). Distributed under the GNU General Public License
Extract the tristimulus (type II) of an audio spectrum
Extract the tristimulus (type III) of an audio spectrum
Extract the variance of a range of values
Extract the zero crossing rate of an audio signal