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AudioPreprocessing.h

/* AudioPreprocessing.h
 *
 * Copyright (C) 2003 -- Timo Glaser
 */

#ifndef AUDIOPREPROCESSING_H
#define AUDIOPREPROCESSING_H

#include <fstream>

#include <audio/fft.h>
#include <audio/AUFile.h>

#include <vector>

#include <stdio.h>
#include <math.h>


class
AudioPreprocessing {
public:
        AudioPreprocessing (void);

        ~AudioPreprocessing (void);

        AudioPreprocessing (AudioPreprocessing& source);

        AudioPreprocessing (double interleaving, int factor, int noWindows,
                int noData);

        void save (fstream& fs) const;

        bool load (fstream& fs);

        void createData (AUFile *auData);

        const vector<double>& getWindows(void) const;

        const vector<double>& getFFTEnergies (void) const;

        void setInterleaving (double interleaving);

        double getInterleaving (void) const;
                
        void setFactor (int factor);

        double getFactor (void) const;

        void setNoWindows (int noWindows);

        int getNoWindows (void) const;


private: 
        double  interleaving;

        double  factor;

        int     noWindows;

        int     noData;

        double *        data;

        vector<double>  window;

        vector<double>  energy;

        double sum (void);

        int sizeOfFirstWindow (void);

        void createWindows (void);

        void scaleWindows (void);

        void createFFTEnergies (void);

        int getFactorIndex (double value) const;
};

#endif

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