Scariest sounds in a game?

[TheSteve]

STuff that's stuck with me:

-Silent Hill, early in the school level, you enter a dark room and hear a baby crying, and the cry is getting closer and the static louder, and you can't quite find the baby with the flashlight... And then the little shadow baby crawls between your feet and out through the wall. Scared the shit out of me.

-My wife would definitely say the air-raid sirens in Silent Hill.

-When you start hearing voices in Eternal Darkness. Problem is, a lot of those sound effects are second fiddle to the insane visuals at that point, and the way the game fucked with you.