#include <stdio.h>
#include "sine_table.h"

// The following assumes a sampling rate of 44100 Hz and produces a 21
// kHz tone for LENGTH milliseconds.

// The duration (in milliseconds) to play the 21 kHz tone.
#define LENGTH 2000

// Since it is assumed that the sampling rate is 44100 Hz, TABLE_LENGTH
// is equal to the sampling rate.
#define TABLE_LENGTH 44100

// In order to get a 21 kHz tone, increment through the 44100-entry sine
// table by 21000 entries every sample.
#define INCREMENT 21000

int main (int argc, char **argv) {

	int sin[TABLE_LENGTH] = TABLE;
	int index = 0, i = 0;

	FILE *f;

	f = fopen(argv[1], "w");

	for (i = 0; i < (LENGTH*TABLE_LENGTH)/1000; i++) {
		fprintf(f, "%d \n", sin[index]);
		index = (index + INCREMENT) % TABLE_LENGTH;
	}

	return 0;
}