Tech to work the sort of area a device is in based on sound. (As in Ambient inteligence style ;p)
Quite hard to explain, but it works by judging the frequency of sound and the sort of ranges, etc.
Currently in early stages of dev and progress might be a bit slow as it's a hobby project.
Requires PortAudio.
The makefile sets it all up for OSX. It will EVENTUALY(read: never) be sorted out for more platforms.