#include <iostream>
#include "wavdata.h"
#include "fft.h"
#include <math.h>

#define DELAY 5000
#define AMPLITUDE 0.5

int main(int argc, char **argv)
{
	WavData w;
	w.load("COW.WAV");

	char *data = w.data();
	char *data2 = new char[w.datasize()*2];

	int i;
	for(i=0;i<w.datasize();i++){
		data2[i]=data[i];
		printf("%d ",data[i]);}
	for(;i<w.datasize()*2;i++)
		data2[i]=128;

	for(int i=DELAY;i<2*w.datasize();i++)
	{
		float value = (float)(unsigned char)data2[i-DELAY]-128.0;
		value = value * AMPLITUDE;
		int val = (unsigned int)value + (unsigned char)data2[i];
		if(val>255)val=255;
		if(val<0)val=0;

		data2[i]= (unsigned char)(unsigned int)val;
	}

	w.clearData();
	w.setDatasize(w.datasize()*2);
	w.setData(data2);

	w.save("COW_d.WAV");
}