Mercurial > hg > vamp-tempogram
view WindowFunction.cpp @ 11:09fb76606b2b
* Removed many unnecessary heap allocations with objects
author | Carl Bussey <c.bussey@se10.qmul.ac.uk> |
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date | Wed, 13 Aug 2014 10:45:46 +0100 |
parents | be59b4a73f49 |
children | 7680cc4c0073 |
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// // WindowFunction.cpp // Tempogram // // Created by Carl Bussey on 26/06/2014. // Copyright (c) 2014 Carl Bussey. All rights reserved. // #include "WindowFunction.h" using std::vector; //static function void WindowFunction::hanning(float *window, const unsigned int N, const bool normalise){ float sum = 0; for(int i = 0; i < N; i++){ window[i] = 0.5*(1-cos((float)2*M_PI*i/N)); sum += window[i]; } if (normalise){ for(int i = 0; i < N; i++){ window[i] /= sum; } } }