ons, 17 06 2009 kl. 14:35 -0700, skrev Travis Collier: > I'm computing the "sliding" (lags only in one dimension) cross > correlation of spectrograms. For many cases, the spectrograms are > quite large and the needed lag ranges are small. > These are used as a sound similarity metric and as a method to > estimate time delays (though I favor xcorrs of the actual signals for > TDE, others have used spectrogram cross correlation so I need to do > the same for comparison). > > Now that you mention it, normalizing xcorr2 results myself probably > wouldn't be very difficult. I'll take a look at what it is actually > doing and see if that makes sense. > > If that is all there is to it, then shouldn't implementing normxcorr2 > should be very simple?
If that's all normxcorr2 does, then yes it sounds fairly simple. If you would like to submit such a function (assuming this what the matlab counterpart does), then it would be appreciated; I just don't have the time at the moment. Søren ------------------------------------------------------------------------------ Are you an open source citizen? Join us for the Open Source Bridge conference! Portland, OR, June 17-19. Two days of sessions, one day of unconference: $250. Need another reason to go? 24-hour hacker lounge. Register today! http://ad.doubleclick.net/clk;215844324;13503038;v?http://opensourcebridge.org _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
