In message , George Ruch
writes
"John Keeney" wrote:
Perhaps you could substitute a tone that changed in frequency
based on the noise level to let the user know there's loud noises about.

Possible, but with everything else going on (HUDs, data links, etc.) we're
quickly entering the realm of Heinlein's powered suits from _Starship
Troopers_ (the original book, not the movie). There's a description in the
book a system that would make a fighter pilot feel right at home.

Heinlein understood the virtue of simplicity and transparency, when it
came to equipment.

"This leaves you with your whole mind free to handle your weapons and
notice what is going on around you... which is *supremely* important to
an infantryman who wants to die in bed. If you load a mudfoot down with
a lot of gadgets that he has to watch, someone a lot more simply
equipped - say with a stone ax - will sneak up and bash his head in
while he is trying to read a vernier."

--
He thinks too much: such men are dangerous.
Julius Caesar I:2

Paul J. Adam MainBoxatjrwlynch[dot]demon{dot}co(.)uk