Daniel@0: function movie = CorrelogramMovie(data, sr, frameRate, width)
Daniel@0: % function movie = CorrelogramMovie(data, sr, frameRate, width)
Daniel@0: % Compute a Matlab movie of a sound array called "data" which has
Daniel@0: % a sampling rate of sr Hz.  Compute frameRate frames per second, each
Daniel@0: % time taking "width" samples for analysis.
Daniel@0: 
Daniel@0: % (c) 1998 Interval Research Corporation
Daniel@0: 
Daniel@0: if nargin < 2, sr = 16000; end
Daniel@0: if nargin < 3, frameRate = 12; end
Daniel@0: if nargin < 4, width = 256; end
Daniel@0: 
Daniel@0: [channels, len] = size(data);
Daniel@0: frameIncrement = fix(sr/frameRate);
Daniel@0: frameCount = floor((len-width)/frameIncrement)+1;
Daniel@0: 
Daniel@0: movie = moviein(frameCount);
Daniel@0: for i=1:frameCount
Daniel@0: 	start = (i-1)*frameIncrement + 1;
Daniel@0: 	pic = CorrelogramFrame(data, width, start, frameIncrement*2);
Daniel@0: 		minimum = min(min(pic));
Daniel@0: 		maximum = max(max(pic));
Daniel@0: 		image((pic-minimum)/(maximum-minimum)*length(colormap));
Daniel@0: 		drawnow;
Daniel@0: 	movie(:,i) = getframe;
Daniel@0: end