[sdiy] Resonant Cavity Modeller (was Re: [sdiy] transducers)

[Robotboy8 at aol.com]

In a message dated 11/9/2004 10:28:59 PM Eastern Standard Time, 
sasami at hotkey.net.au writes:

> >Basically, how feasible would it be to amp a mic signal, use that to drive 
> a 
> >very large inducer placed next to a bunch of strings tuned to whatever 
> >frequencies you want to resonate the most, and have a pickup at the other
> end of the 
> >strings?  Re-tunable resonance simulator... I've ben considering building 
> such 
> >a device for a while now.
> 
> You aren't the first to have the thought. You won't be the last. The idea
> was patented in the early 80's, which amused me, because I'd thought of the
> idea prior to that. After all, what the heck is a piano! Hold down the
> sustain pedal, and that is exactly what you have. I used to use it to
> resonate the organ which was in the same room.

So it is feasible, but I shouldn't try to sell one to anybody?  I'm not too 
well versed in patent law...

       -eric
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