view Code/Descriptors/Matlab/Common/ShortTimeEnergy.m @ 4:92ca03a8fa99 tip

Update to ICASSP 2013 benchmark
author Dawn Black
date Wed, 13 Feb 2013 11:02:39 +0000
parents ea0c737c6323
children
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function E = ShortTimeEnergy(signal, windowLength, step);
signal = signal / max(max(signal));
curPos = 1;
L = length(signal);
numOfFrames = floor((L-windowLength)/step) + 1;
%H = hamming(windowLength);
E = zeros(numOfFrames,1);
for (i=1:numOfFrames)
    window = (signal(curPos:curPos+windowLength-1));
    E(i) = (1/(windowLength)) * sum(abs(window.^2));
    curPos = curPos + step;
end