annotate WindowFunction.cpp @ 37:44d8e5dc1902
Split out Makefile to separate single-platform versions and an .inc file
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Chris Cannam |
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Fri, 12 Sep 2014 14:54:55 +0100 |
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de7213b35755 |
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4cf2d163127b |
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line source |
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1 //
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2 // WindowFunction.cpp
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3 // Tempogram
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4 //
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5 // Created by Carl Bussey on 26/06/2014.
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6 // Copyright (c) 2014 Carl Bussey. All rights reserved.
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7 //
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8
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9 #include "WindowFunction.h"
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10 using std::vector;
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11
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12 //static function
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13 void
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14 WindowFunction::hanning(float * window, const unsigned int &N, const bool &normalise){
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15
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16 float sum = 0;
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17 for(int i = 0; i < (int)N; i++){
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18 window[i] = 0.5*(1-cos((float)2*M_PI*i/N));
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19 sum += window[i];
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20 }
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21 if (normalise){
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22 for(int i = 0; i < (int)N; i++){
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23 window[i] /= sum;
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24 }
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25 }
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26 } |
