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