6a961b68
 rsimonin
modifications
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#include <iostream>
#include "wavdata.h"
#include "fft.h"
#include <math.h>
#define FREQ 22400
#define AMPLITUDE 10
#define FREQDO 261
#define FREQLA 440
#define SIZE FREQ*2
int main(int argc, char **argv)
{
//Definition variables
int i;
float pi=3.141592;
WavData w;
w.load("COW.WAV");
char *data = w.data();
double test[w.datasize()*2][2];
double test1[w.datasize()*2][2];
double test2[w.datasize()*2][2];
double test3[w.datasize()*2][2];
printf("===Création data\n");
//Creation de la donnée
char *data2 = new char[w.datasize()*2];
printf("===load success\n");
for(i=0;i<w.datasize();i++){
test[i][0]=(double)data[i];
test[i][1]=0;
}
//FFT
printf("===fft\n");
fft(32768*2,test,test2);
//Modification dans le domaine fréquentiel
printf("===modif freq\n");
for(i=1;i<w.datasize()+1;i++){
int x=i-1;
int y=(2*i)-2;
test3[2*x][0]=test2[x][0];
test3[2*x+1][0]=test2[x][0];
test3[2*x][1]=0;
test3[2*x+1][1]=0;
}
//FFT inverse
printf("===ifft\n");
ifft(32768*2,test1,test3);
//Récupération des données
for(i=0;i<w.datasize();i++){
data2[i]=test1[i][0];
}
//Preapation format final
w.setAudioFormat(1);
w.setNbrChanel(1);
w.setFrequency(FREQ);
w.setBytePerBloc(4);
w.setBytePerSec(FREQ);
w.setBitsPerSample(8);
w.clearData();
w.setDatasize(w.datasize());
w.setData(data2);
w.save("strechcow.WAV");
}
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