I've posted this suggestion in the old forums, but I wanted to bring the idea here as well.

The idea is to have every sound effect subtitled so it's more deaf friendly. Subtitles for the deaf work like this:

You hear a bat, it would say "[Bat Flapping Wings]"
You hear a skeleton, it would say "[Bones Grinding]" or "[Skeleton Growl]" or whatever the sound is.
Guard yelling would have "HALT!"

Subtitles describe the sound in a concise way, and if it's not something speaking, then it uses [] to indicate that this is noise.

Good idea! This would make the athmosphere a bit text-rpg-like (e.g. nethack)