Hi,
On Sun, 2007-06-17 at 23:01 -0500, Charles Henry wrote:
Jamie Bullock has cc~ in his flib collection. It computes cross correlation in the time domain, and cross-covariance using the freq. domain. I worked on it a while back...but have been lazy about trying to change the cross-covariance into a cross-correlation. Sorry, Jamie.
flib is now deprecated, and has been surpassed by libxtract, which is a generic C library that includes as an example a PD external that wraps it's functionality.
It can be found at http://sourceforge.net/projects/libxtract. If you want to use the fft-based autocorrelation you will need the fftw library, and to compile libxtract with --enable-fft.
It includes a time domain and fft-based autocorrelation, but no arbitrary cross correlation functions.
Chuck, I must remember to add your cross-covariance code into libxtract (with acknowledgement of course).
best,
Jamie