Welcome to the Computer Audition Toolbox (CATbox) page. Here you will find the CATbox  download page and the documentation page.

This project is meant to be an open repository of tools in computer audition. If you would like to contribute your code, please contact the toolbox managers. All toolbox materials are available under GNU license. The CATbox is a compilation of MATLAB functions that are of interest to computer audition researchers and related fields. The project is meant to collaborative to sustain the growing demands in this new field. 

The CATbox is maintained by Shlomo Dubnov and Mehrdad Yazdani.

 

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features AudioBasis: (MPEG7) Audio Basis (AB) and several distance measures (using GMM and Itakura Saito). Auditory: ERB auditory filter bank Ceps: Cepstral envelope and pitch analysis Chroma: Chroma representation of spectral magnitudes ConstQ: Constant-Q filter Bank FactorOracle: Factor Oracle for Midi improvisation ISDist: Itakura-Saito Distance between AR spectra InstFreq: Instantaneous Frequency using Miller’s hop-one method InfoRate: Information Rate analysis, including signal recurrence analysis by spectral clustering LPC: Linear Prediction envelope and residual, including simple Talkbox LSEE: Griffin and Lim’s least square error estimation from spectral magnitudes (phaseless reconstuction)

MFCC: Mel-Frequency Cepstral Coefficients MIDI Tools: Various Midi representations needed for alignment and improvisation NoteSigSim: Note-Signal similarity using harmonic projection Onset: Various methods for onset detection SFM: Spectral Flatness Measure, including the non-Gaussian version STFT: Short time Fourier transform, including phase-vocoder time stretching and pitch shifting SeqAlign: Different sequence alignment and dynamic time warping methods Utils: some utilities Welch: Welch spectral estimate YASA: Sinusoidal and Noise analysis and resynthesis based on Linear Prediction and MVDR

Thanks to: Benjamin Blankertz, Mike Brookes, Michael Casey, Dan Ellis, Malcom Slaney Other programs needed to run different parts of this toolbox: Eerola, T. & Toiviainen, P. (2004). MIDI Toolbox Dan Ellis’s Mp3read for Matlab (with my small modification) License: ---------- This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details. You can obtain a copy of the GNU General Public License from ftp://prep.ai.mit.edu/pub/gnu/COPYING-2.0 or by writing to Free Software Foundation, Inc.,675 Mass Ave, Cambridge, MA 02139, USA.