Sound doesn't fade (Solved)

[Cataclysm]

Alright so I'm working on a test map where im just fooling around figuring out the scripting and everything. I'm coming a long nicely thanks to lots of help, but I've run in to a problem. At the void OnStart() at the beginning one of my callbacks is

AddEntityCollideCallback("Player", "ScriptArea_1", "PlayCreepySound", true, 1);

now the script for that call back in the void OnEnter() is

void PlayCreepySound(string &in asParent, string &in asChild, int alState)
{
PlaySoundAtEntity("", "scare_steps_big.snt", "ScriptArea_1", 0, false);
StartScreenShake(0.3, 4, 2, 2);
PlaySoundAtEntity("", "general_rock_rumble.snt", "ScriptArea_1", 0, false);
}

Now when I enter the script area the sounds play the screen shakes and everything works, but the rock rumble sound never stops playing.
Anyone know whats up???

Thanks in advance.