Beginner asking for some help.

[The chaser]

Go the Amnesia sounds folder "redist<sounds" and search your sound there (the .ogg file are the sound, the .snt files are text files which have specific configuration, specially for Amnesia). Then, simply put this line of code right when the player touches the door:

PlaySoundAtEntity("Justaname", "yoursound.snt", "Player", 1.0, false);

This right here is your friend. Downloading it as a .pdf is a very good choice
http://wiki.frictionalgames.com/hpl2/amn..._functions