annotate src/AudioEventMatcher.cpp @ 2:179c09199b3c

bayesian vector now adding gaussians for kick onsets

/*
 *  AudioEventMatcher.cpp
 *  MultipleAudioMathcher
 *
 *  Created by Andrew on 31/01/2012.
 *  Copyright 2012 QMUL. All rights reserved.
 *
 */

#include "AudioEventMatcher.h"


const int matchWindowWidth = 6000;

AudioEventMatcher::AudioEventMatcher(){

	bayesTempoWindow.setToRelativeSize(0, 0.6, 1, 0.2);
	bayesPositionWindow.setToRelativeSize(0, 0.8, 1, 0.2);

	setArraySizes();
}


void AudioEventMatcher::setArraySizes(){
	bayesianStruct.resetSpeedSize(200);
	bayesianStruct.setRelativeSpeedScalar(0.01);
	bayesianStruct.setSpeedPrior(1.0);
	bayesianStruct.relativeSpeedPrior.getMaximum();
	
	bayesianStruct.resetSize(matchWindowWidth);
	bayesianStruct.setPositionDistributionScalar(1);
	
}

void AudioEventMatcher::draw(){
	//ofRect(20, 20, 300, 200);
	
	recordedTracks.drawTracks();
	
	ofSetColor(255);
//	bayesianStruct.relativeSpeedPrior.drawVector(0, 200, bayesTempoWindow);
	
	double screenWidthMillis = recordedTracks.loadedAudioFiles[0].fileLoader.onsetDetect.framesToMillis(recordedTracks.loadedAudioFiles[0].fileLoader.onsetDetect.amplitudeNumber);
	
	
	bayesianStruct.likelihood.drawVector(0, screenWidthMillis, bayesTempoWindow);
	
}


void AudioEventMatcher::newPitchEvent(const double& pitchIn, const double& timeIn){
	liveInput.addPitchEvent(pitchIn, timeIn);
	recordedTracks.matchNewPitchEvent(0, pitchIn, timeIn);
}

void AudioEventMatcher::newKickEvent(const double& timeIn){
	matchNewOnsetEvent(0, timeIn);
}


void AudioEventMatcher::newSnareEvent(const double& timeIn){
	matchNewOnsetEvent(0, timeIn);
}

//Needs just to set bounds for the matching process, not have TimeIn
void AudioEventMatcher::matchNewOnsetEvent(const int& channel, const double& timeIn){
	//start at beginning but OPTIMISE later
	double likelihoodToNoise = 0.5;
	
	double likelihoodWidth = 40;
	
	bayesianStruct.likelihood.offset = bayesianStruct.prior.offset;
	bayesianStruct.likelihood.zero();//set to zero
	
	double quantity = 1;//likelihoodToNoiseRatio / numberOfMatches;
	int numberOfMatchesFound = 0;

	
	double startTime = bayesianStruct.likelihood.offset;
	double endTime = bayesianStruct.likelihood.offset + matchWindowWidth;
	
	if (channel <= recordedTracks.numberOfAudioTracks){
		for (int i = 0;i < recordedTracks.loadedAudioFiles[channel].fileLoader.onsetDetect.chromaOnsets.size();i++){
			double millisTime = recordedTracks.loadedAudioFiles[channel].fileLoader.onsetDetect.chromaOnsets[i].millisTime;
			if (millisTime >= startTime && millisTime <= endTime){
				bayesianStruct.likelihood.addGaussianShapeFromRealTime(millisTime, likelihoodWidth,  quantity);
				numberOfMatchesFound++;
				printf("Adding Gaussian for onset at time %f offset %f\n", millisTime, bayesianStruct.likelihood.offset);
				
			}
		}
	}
	
	bayesianStruct.likelihood.renormalise();
	
	//bayesStruct.likelihood.addConstant((1-likelihoodToNoiseRatio)/bayesStruct.likelihood.length);
	
	
}


void AudioEventMatcher::windowResized(const int& w, const int& h){
	recordedTracks.windowResized(w,h);
}