Binaural Toolbox for Matlab

We have developed a MATLAB toolbox for calculating the binaural cross-correlogram of a sound. The toolbox incorporates functions for:

• signal generation (e.g., bandpass noise, pure tone, complex tone, Huggins pitch);
• plotting and playing of signals;
• calculation & post-processing of the correlogram;
• frequency or delay weightings;
• calculation of centroid or peak locations.

In addition we have developed a Windows 95/98 program for displaying correlograms, and have written a 77-page instruction manual and tutorial.

This picture shows an example screendump from the Windows program. It shows the binaural cross-correlogram of a 600-Hz Huggins-pitch stimulus:

More screendumps from the MATLAB toolbox and from the Windows program

We are making this software available in the hope that it may prove useful:

• Download the Matlab toolbox (Zip archive; 80 KB)
• Download the Windows 9x program (Exe file; 576 KB)
• Download the Tutorial (Pdf format; 1.8MB)

If you find the toolbox useful, we would appreciate it if you would please let us know.

Some other computational-modeling sites

• Malcolm Slaney's Auditory Toolbox (the gammatone-filtering functions in my toolbox are taken from this).
• Rich Stern's binaural-modeling pages.
• AIM ("Auditory Image Model"; Roy Patterson, John Holdsworth, Mike Allerhand, and Chris Giguere).
• DSAM ("Development system for auditory modeling", which combines AIM and LUTear; Lowel O'Mard and colleagues, Centre for the Neural Basis of Hearing, University of Essex).