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1 /*
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2 * Author: c.landone
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3 * Description:
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4 *
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5 * Syntax: C++
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6 *
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7 * Copyright (c) 2005 Centre for Digital Music ( C4DM )
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8 * Queen Mary Univesrity of London
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9 *
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10 *
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11 * This program is not free software; you cannot redistribute it
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12 * without the explicit authorization from the centre for digital music,
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13 * queen mary university of london
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14 *
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15 */
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16
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17 #if !defined GETKEYMODE_H
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18 #define GETKEYMODE_H
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19
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20
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21 #include "dsp/rateconversion/Decimator.h"
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22 #include "dsp/chromagram/Chromagram.h"
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23
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24
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25 class GetKeyMode
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26 {
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27 public:
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28 GetKeyMode( int sampleRate, float tuningFrequency,
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29 double hpcpAverage, double medianAverage );
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30
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31 virtual ~GetKeyMode();
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32
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33 int process( double* PCMData );
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34
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35 double krumCorr( double* pData1, double* pData2, unsigned int length );
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36
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37 unsigned int getBlockSize() { return m_ChromaFrameSize*m_DecimationFactor; }
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38 unsigned int getHopSize() { return m_ChromaHopSize*m_DecimationFactor; }
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39
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40 double* getChroma() { return m_ChrPointer; }
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41 unsigned int getChromaSize() { return m_BPO; }
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42
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43 double* getMeanHPCP() { return m_MeanHPCP; }
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44
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45 int isModeMinor( int key );
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46
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47 protected:
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48
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49 double m_hpcpAverage;
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50 double m_medianAverage;
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51 unsigned int m_DecimationFactor;
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52
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53 //Decimator (fixed)
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54 Decimator* m_Decimator;
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55
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56 //chroma configuration
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57 ChromaConfig m_ChromaConfig;
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58
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59 //Chromagram object
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60 Chromagram* m_Chroma;
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61
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62 //Chromagram output pointer
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63 double* m_ChrPointer;
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64
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65 //Framesize
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66 unsigned int m_ChromaFrameSize;
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67 //Hop
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68 unsigned int m_ChromaHopSize;
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69 //Bins per octave
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70 unsigned int m_BPO;
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71
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72
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73 unsigned int m_ChromaBuffersize;
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74 unsigned int m_MedianWinsize;
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75
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76 unsigned int m_bufferindex;
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77 unsigned int m_ChromaBufferFilling;
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78 unsigned int m_MedianBufferFilling;
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79
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80
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81 double* m_DecimatedBuffer;
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82 double* m_ChromaBuffer;
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83 double* m_MeanHPCP;
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84
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85 double* m_MajCorr;
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86 double* m_MinCorr;
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87 double* m_Keys;
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88 int* m_MedianFilterBuffer;
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89 int* m_SortedBuffer;
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90 };
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91
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92 #endif // !defined GETKEYMODE_H
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