bytemedia

effects.h (214B)

float
crossfade(int dur, int t, float vol)
{
	float att = dur/9;
	float decay = dur/3;
	if(t < att) {
		return vol*(t/att);
	} else if((dur-t) < decay) {
		return vol*((dur-t)/decay);
	} else {
		return vol;
	}
}