/* test_make_wav.c

* Fri Jun 18 17:13:19 PDT 2010 Kevin Karplus

* Test program for the write_wav function in make_wav.c

*/

#include <math.h>

#include "make_wav.h"

#define S_RATE (44100)

#define BUF_SIZE (S_RATE*2) /* 2 second buffer */

short int buffer[BUF_SIZE];

int main(int argc, char * argv)

{

int i;

float t;

float amplitude = 32000;

float freq_Hz = 440;

float phase=0;

float freq_radians_per_sample = freq_Hz*2*M_PI/S_RATE;

/* fill buffer with a sine wave */

for (i=0; i<BUF_SIZE; i++)

{

phase += freq_radians_per_sample;

buffer[i] = (int)(amplitude * sin(phase));

}

write_wav("test.wav", BUF_SIZE, buffer, S_RATE);

return 0;

}