view src/AudioAnalysis.h @ 1:ba2a17cf81bf

first working version of audio file loder. Loads bach clip from the apps->audio-file-loader->bin->data->sounds foler. Three classes: SoundFileLoader does the loading and parsing of thefile with libSndFile. audio samples are kept in AudioFile and analysis of features are kept in AudioAnalysis, at this stage just chromagramm and basic energy

/*
 *  AudioAnalysis.h
 *  audioFileLoader4
 *
 *  Created by Andrew on 14/08/2011.
 *  Copyright 2011 QMUL. All rights reserved.
 *
 */

#ifndef AUDIO_ANALYSIS_H
#define AUDIO_ANALYSIS_H


#include "fftw3.h"
#include "ofMain.h"
#include "chromaGram.h"
#include "ChordDetect.h"
#include "sndfile.h"
#include "ofxFileDialogOSX.h"
#include "AudioFile.h"

#define FRAMESIZE 512
#define ENERGY_LENGTH 80000
#define CHROMA_LENGTH 12000
#define CHROMA_CONVERSION_FACTOR 16 //16 times as many frames in energy as in chroma


//this does a chromagram analysis and aubio onset analysis
//held in double matrix and doubleVector respectively
//these are dynamic vectors, so size set by what's needed for the file

class AudioAnalysis{

public:
	
	AudioAnalysis();
	
	typedef std::vector<double> DoubleVector;
	typedef std::vector<DoubleVector> DoubleMatrix;
	
	DoubleMatrix chromaMatrix;
//	DoubleMatrix* matrixPtr;
	DoubleVector energyVector;
	
	AudioFile* audioHolder;
	void loadNewAudio(string soundFileName);//??
	
	Chromagram chromoGramm;
	int currentPlayingFrame;
	
	ChordDetect chord;
	
	double getEnergyOfFrame();
	int scrollWidth;
	//int totalFrames;
	void drawEnergyVectorFromPointer();
	void drawSpectralDifference();
	
	/*
	 double getEnergyOfFrame();
	
	 
	 void initialiseVariables();
	 
	 	 
	 void initialiseVariables();
	 
	 
		 AudioFile audioHolder;
	 
	 void drawDoubleMatrix(DoubleMatrix* dMatrix);//DoubleMatrix* dMatrix); WOULD BE NICE TO USE POINTER BUT NOT WORKING YET
	
	 
	 DoubleVector firstEnergyVector;
	 
	 void drawEnergyVectorFromPointer(DoubleVector* energyVec);
	 
	 void processAudioToDoubleMatrix(Chromagram* chromaG, DoubleMatrix* myDoubleMatrix, DoubleVector* energyVector);
	 
	 void loadNewAudio(string soundFileName);
	 
	 
	 
	 */
	
	
};
#endif