When I get my back-woods piece of heaven, I want to set up microphones all over the exterior of my roof line, some pointing up, some pointing down. I'll also have a few wireless sensor nodes out there in the woods. I have entirely enough technical prowess to do this.
The fun part will be in outfitting a tracked robotic platform with fire crackers and an electric match to go off all around the homestead and set off those lovely little shock-wave forming devices and then seeing what the shock-waves look like to the computers to which the microphones are hooked up and relative to the locations where the firecrackers are set off, in what order do the microphones pick up the attendant shock-waves?
A bunch of number crunching later, and a deer can't fart in the woods without the location of its rectum showing up on a 3-D map on a computer screen in my home. It won't cost me $1.4 billion either.
It's called a phased array microphone, and there's one in every classroom at the university for keying in on individual speakers when there's a telecast lecture of demonstration.