bytemedia

misc.h (309B)

#include <math.h> // pow
#include <stdio.h> // putchar
// https://pages.mtu.edu/~suits/NoteFreqCalcs.html
#define TWELTH_ROOT_2 1.059463094359
double
note_to_hertz(double ref_tune, int steps) {
	return ref_tune*pow(TWELTH_ROOT_2,steps);
}
void
silence(int dur) {
	for(int t = 0;t<dur;t++)putchar( 0x00 );
}