resonant communications
Bill Perry ( wperry3092@worldnet.att.net )
Tue, 14 Apr 1998 23:25:22 -1000
I've been reading a lot about those little parabolic mics, you know like
the Whisper Mic 2000? Supposedly you can hear up to 200 meters (or maybe
feet?) whispers and such. But I would like to know if a small speaker is
replaced for the mic, if you could effectively beam the sound in just
one direction, and how to figure the max range based on the parabolic
dish size, sound amplitude and such. What would be really cool though is
to modulate the sound you were transmitting on a frequency that would be
the resonance of one particular person's eardrum. Then you could send it
to only one person (or maybe a few choice dogs <g>).
BillP