[graypegg]

At the very end, there's some examples of more literal sounds. It says there hasn't been a study, but I would bet they're a lot more clear with out having to resort of the aviation standard of "just learn basic english".

buh-bump is cardiac stuff. wiSShhh... wooosSH is respiratory stuff.

Only thing is, I bet you can hear sounds similar to those in a hospital. The "beep beep" they put over it might not be enough. Still a really interesting research topic!