Acoustic Position Measuring Device

[Cédric Berger]

On Tue, Aug 19, 2008 at 16:49, Charles Pax <charles.pax at gmail.com> wrote:

> I have a few questions
> 1) Are the any technical obstacles to this idea?
> 2) What is the frequency range of the speaker?
> 3) What is the frequency range of the microphone?
> 4) Any other comments of ideas?
>

I would think main problem is microphone sensitivity/speaker strength.
Hard to get over noise.
But I am curious to know to what point this could work !