annotate NoveltyCurveProcessor.h @ 14:c11367df624d
* Renamed NoveltyCurve.* and Spectrogram.* to $(Name)Processor.*
* Aligned novelty curve with audio - when performing FIRFilter::process(params), take inputLength after group delay.
* Removed trail of Spectrogram.
* General tidying!
| author |
Carl Bussey <c.bussey@se10.qmul.ac.uk> |
| date |
Thu, 14 Aug 2014 10:31:49 +0100 |
| parents |
NoveltyCurve.h@7680cc4c0073 |
| children |
1e4c02ca8b81 |
| rev |
line source |
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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 // Don't new delete objects
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10
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11 #ifndef __Tempogram__NoveltyCurve__
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12 #define __Tempogram__NoveltyCurve__
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13
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14 #include <iostream>
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15 #include <cmath>
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16 #include <vector>
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17 #include <iostream>
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18 #include "FIRFilter.h"
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19 #include "WindowFunction.h"
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20 #include <cassert>
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21 #include "SpectrogramProcessor.h"
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22
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23 class NoveltyCurveProcessor{
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24 float m_samplingFrequency;
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25 int m_fftLength;
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26 int m_blockSize;
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27 int m_numberOfBlocks;
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28 int m_compressionConstant;
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29 int m_numberOfBands;
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30 int * m_pBandBoundaries;
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31 float * m_pBandSum;
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32
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33 void initialise();
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34 void cleanup();
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35 float calculateMax(const std::vector< std::vector<float> > &spectrogram) const;
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36 void subtractLocalAverage(std::vector<float> &noveltyCurve, const size_t &smoothLength) const;
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37 void smoothedDifferentiator(std::vector< std::vector<float> > &spectrogram, const size_t &smoothLength) const;
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38 void halfWaveRectify(std::vector< std::vector<float> > &spectrogram) const;
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39
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40 public:
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41
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42 NoveltyCurveProcessor(const float &samplingFrequency, const size_t &fftLength, const size_t &numberOfBlocks, const size_t &compressionConstant);
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43 ~NoveltyCurveProcessor();
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44 std::vector<float> spectrogramToNoveltyCurve(Spectrogram spectrogram) const;
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45 };
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46
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47 #endif /* defined(__Tempogram__NoveltyCurve__) */
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