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1 /*
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2 * AudioEventMatcher.h
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3 * MultipleAudioMathcher
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4 *
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5 * Created by Andrew on 31/01/2012.
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6 * Copyright 2012 QMUL. All rights reserved.
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7 *
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8 */
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9
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10
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11
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12 #ifndef AUDIO_EVENT_MATCHER_H
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13 #define AUDIO_EVENT_MATCHER_H
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14
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15 #define NUMBER_OF_CHANNELS 3
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16
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17 #include "ofMain.h"
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18 #include "ChromaOnset.h"
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19 #include "LiveAudioInput.h"
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20 #include "ofxWindowRegion.h"
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21 #include "BayesianArrayStructure.h"
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22 #include "RecordedMultitrackAudio.h"
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23 #include "DynamicVector.h"
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24 #include "AccompanimentSynchroniser.h"
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25 #include "TempoFollower.h"
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26
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27 class AudioEventMatcher{
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28
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29 public:
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30 AudioEventMatcher();
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31
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32 void setArraySizes();
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33
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34 void updatePosition();
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35 void updateBestAlignmentPosition();
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36
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37 void draw();
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38 void drawBayesianDistributions();;
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39 void setWindowDimensions();
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40
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41 void newPitchEvent(const int& channel, const double& pitchIn, const double& timeIn);
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42 void newKickEvent(const double& timeIn);
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43 void newKickEvent(const int& channel, const double& timeIn);
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44 void newSnareEvent(const double& timeIn);
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45 void newSnareEvent(const int& channel, const double& timeIn);
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46
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47 void matchNewPitchEvent(const int& channel, const double& pitchIn, const double& timeIn);
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48 void matchNewOnsetEvent(const int& channel, const double& timeIn);
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49
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50 BayesianArrayStructure bayesianStruct;//hold the probability distriubtions
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51
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52 LiveAudioInput liveInput;//hold the new events that come in
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53 RecordedMultitrackAudio recordedTracks;
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54
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55 void loadAudioFiles();
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56 void rescue();//flat prior
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57 void windowResized(const int& w, const int& h);
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58
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59 ofxWindowRegion bayesTempoWindow;
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60 ofxWindowRegion bayesPositionWindow;
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61 ofxWindowRegion bayesLikelihoodWindow;
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62
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63 bool checkMatch(const double& recordedPitch, const double& livePitch);
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64 double getPitchDistance(const double& pitchOne, const double& pitchTwo, const double& scale);
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65
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66 void startPlaying();
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67 void stopPlaying();
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68 bool startedPlaying;
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69
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70 bool usingRealTime;
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71 double recentPitch, recentTime;
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72
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73 DynamicVector likelihoodVisualisation[NUMBER_OF_CHANNELS];
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74 DynamicVector recentPriors[NUMBER_OF_CHANNELS];
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75 //DynamicVector recentPrior;
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76 DynamicVector projectedPrior;
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77
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78 double currentAlignmentPosition;
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79 double lastAlignmentTime;
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80
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81 double recentEventTime[NUMBER_OF_CHANNELS];
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82 int startTime;
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83 int currentAlignmentTime;
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84
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85 double screenStartTimeMillis, screenEndTimeMillis, screenWidthMillis;
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86 bool followingLiveInput;
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87 void setScreenDisplayTimes();
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88
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89 AccompanimentSynchroniser synchroniser;
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90
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91 //params
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92 double onsetLikelihoodWidth;
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93 double onsetLikelihoodToNoise;
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94 double pitchLikelihoodToNoise;//more noise
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95
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96 double pitchOfNearestMatch;//for viz purposes
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97 double distanceOfNearestMatch;
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98
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99
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100
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101 TempoFollower temporal;
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102 TempoFollower recordedTempoData;
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103 void calculateRecordedTempoData();
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104 void setTempoPrior(double tempo);
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105
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106 void setNextOnsetTime(const int&channel, int& time, int* indexForOnsets);
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107 int recordedTempoIndex;
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108 double recordedTempo;
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109 void updateRecordedTempo();
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110 void drawRecordedTempo();
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111 double currentSpeedRatio;
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112 void drawPlayingTempo();
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113 void setSpeedRatioDistribution(const double& speedRatio);
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114 };
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115 #endif
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