I wanna control timeline

void PlayBatRandom()
	EventInstance pEiMob = SoundSystem.GetEvent("event:/Monster_bat");
	int nRandom = Random.Range(0, 4);
	nSelect = nRandom*2;

	int nSelect = 0;
	pEiMob.getTimelinePosition(out nSelect);


I play sound with this code but only start play timeline = 0

how can I play another seconds?

If you look at the documentation, setTimelinePosition() takes the desired position in milliseconds.

The fix would be

pEiMob.setTimelinePosition(nSelect * 1000);