Mercurial > hg > camir-aes2014
diff toolboxes/MIRtoolbox1.3.2/AuditoryToolbox/CorrelogramMovie.m @ 0:e9a9cd732c1e tip
first hg version after svn
author | wolffd |
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date | Tue, 10 Feb 2015 15:05:51 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toolboxes/MIRtoolbox1.3.2/AuditoryToolbox/CorrelogramMovie.m Tue Feb 10 15:05:51 2015 +0000 @@ -0,0 +1,26 @@ +function movie = CorrelogramMovie(data, sr, frameRate, width) +% function movie = CorrelogramMovie(data, sr, frameRate, width) +% Compute a Matlab movie of a sound array called "data" which has +% a sampling rate of sr Hz. Compute frameRate frames per second, each +% time taking "width" samples for analysis. + +% (c) 1998 Interval Research Corporation + +if nargin < 2, sr = 16000; end +if nargin < 3, frameRate = 12; end +if nargin < 4, width = 256; end + +[channels, len] = size(data); +frameIncrement = fix(sr/frameRate); +frameCount = floor((len-width)/frameIncrement)+1; + +movie = moviein(frameCount); +for i=1:frameCount + start = (i-1)*frameIncrement + 1; + pic = CorrelogramFrame(data, width, start, frameIncrement*2); + minimum = min(min(pic)); + maximum = max(max(pic)); + image((pic-minimum)/(maximum-minimum)*length(colormap)); + drawnow; + movie(:,i) = getframe; +end