#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#define r 48000
//Set output length (in seconds) here!
#define time_seconds 30
int main(){
double t;
double out;
double a[r]={0};
FILE *f = fopen("bb.raw","wb");
while(t<(r*time_seconds)){
out=sin(t/(25-floor(fmod(t/12000,16))))/3+a[(int)fmod(t,r)];
a[(int)fmod(t,r)]=out/1.4;
fwrite(&out,sizeof(double),1,f);
t++;
}
fclose(f);
return 0;
}