ive noticed this with other sounds too, but definitely with the soda can. always freaks me out thinking someone is near. it sounds close, but not like right beside you.

This is the one with the links

This posted even though it gave me an error. Look at the most recent one with links.

Zombies seem to go through any wall for me. This has been an issue since the mod, would be great if they could get this fixed for once.