46 lines
916 B
Matlab
46 lines
916 B
Matlab
% Copyright David Rowe 2009
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% This program is distributed under the terms of the GNU General Public License
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% Version 2
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%
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% Plots a raw speech sample file, you can optionally specify the start and end
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% samples and create a large and small PNGs
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function pl(samname1, start_sam, end_sam, pngname)
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fs=fopen(samname1,"rb");
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s=fread(fs,Inf,"short");
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st = 1;
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en = length(s);
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if (nargin >= 2)
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st = start_sam;
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endif
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if (nargin >= 3)
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en = end_sam;
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endif
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figure(1);
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clf;
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plot(s(st:en));
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axis([1 en-st 1.1*min(s) 1.1*max(s)]);
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if (nargin == 4)
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% small image
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__gnuplot_set__ terminal png size 420,300
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ss = sprintf("__gnuplot_set__ output \"%s.png\"", pngname);
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eval(ss)
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replot;
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% larger image
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__gnuplot_set__ terminal png size 800,600
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ss = sprintf("__gnuplot_set__ output \"%s_large.png\"", pngname);
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eval(ss)
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replot;
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endif
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endfunction
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