I'm looking for a microphone that is sensitive enough to capture a person's breath but reduces all other sound outside of a very close proximity.
I'll be placing the microphone in a sphere of LEDs which will illuminate and animate when the subject (also in the center of the sphere) breathes. The problem is, there will be dozens of people surrounding the sphere, which is only 12' in diameter.
Anyone have any ideas? I tried a shotgun mic, but it was far too sensitive and picked up surrounding footsteps far more than it did breathing.