Mercurial > hg > vamp-tempogram
view WindowFunction.cpp @ 7:21147df9cb2d
* Error when deleting Spectrogram object in Tempogram::getRemainingFeatures().
* Moved Spectrogram computation into own class.
author | Carl Bussey <c.bussey@se10.qmul.ac.uk> |
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date | Thu, 07 Aug 2014 16:21:21 +0100 |
parents | 31d2a7e07786 |
children | be59b4a73f49 |
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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; void WindowFunction::hanning(float *signal, const unsigned int N, const bool normalise){ float sum = 0; for(int i = 0; i < N; i++){ signal[i] = 0.5*(1-cos((float)2*M_PI*i/N)); sum += signal[i]; } if (normalise){ for(int i = 0; i < N; i++){ signal[i] /= sum; } } }