/* 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 */

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;
}