annotate NoveltyCurve.h @ 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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Thu, 07 Aug 2014 16:21:21 +0100 |
| parents |
8d7e336b41e9 |
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be59b4a73f49 |
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1 //
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2 // NoveltyCurve.h
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3 // Tempogram
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4 //
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5 // Created by Carl Bussey on 10/07/2014.
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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 #ifndef __Tempogram__NoveltyCurve__
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10 #define __Tempogram__NoveltyCurve__
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11
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12 #include <iostream>
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13 #include <cmath>
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14 #include <vector>
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15 #include <iostream>
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16 #include "FIRFilter.h"
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17 #include "WindowFunction.h"
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18 #include <cassert>
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19
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20 class NoveltyCurve{
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21 float m_samplingFrequency;
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22 int m_fftLength;
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23 int m_blockSize;
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24 int m_numberOfBlocks;
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25 int m_compressionConstant;
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26 int m_numberOfBands;
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27 int * m_bandBoundaries;
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28 int m_hannLength;
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29 float * m_hannWindow;
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30 float * m_bandSum;
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31
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32 void initialise();
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33 void cleanup();
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34 float calculateMax(std::vector< std::vector<float> > &spectrogram);
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35 void subtractLocalAverage(std::vector<float> &noveltyCurve);
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36 void smoothedDifferentiator(std::vector< std::vector<float> > &spectrogram, int smoothLength);
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37 void halfWaveRectify(std::vector< std::vector<float> > &spectrogram);
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38
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39 public:
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40 std::vector<float> data;
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41
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42 NoveltyCurve(float samplingFrequency, int fftLength, int numberOfBlocks, int compressionConstant);
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43 ~NoveltyCurve();
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44 std::vector<float> spectrogramToNoveltyCurve(std::vector< std::vector<float> > &spectrogram);
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45 };
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46
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47 #endif /* defined(__Tempogram__NoveltyCurve__) */
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