Tuneable Helmholtz resonators ?

[Bill Ballard]

At 8:39 PM -0600 12/3/02, Richard Moody wrote:
>Or use a Helmholtz resonator?   I day dream about how such a thing
>could be hooked up to a stethoscope and tuned through a wide range
>of frequencies, like filling it up with water or a piston making
>it larger or smaller.      ---rm

Simpler demonstrations have been offered by Don Mannino and Robert Scott.

I'm going to try the C6/F#6 tritone tomorrow. (Along with the Debussy 
"sleight-of-sound" passing chords.)

Bill Ballard RPT
NH Chapter, P.T.G.

Reality is the first casualty of technology
     ...........NPR Commentator Daniel Schorr
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