Wapin bridge

[Paul Chick (EarthLink)]

Cy
The Wapin System will be covered in several classes at the Central West
Regional Seminar held here in Rochester MN, USA, April 12-14, 2002. Hands on
events will be conducted. If you don't receive a mailing, contact me.
(Please excuse my unvarnished plug.)

Paul Chick
Coordinating Chairman
17950 75th Street NE
Plainview MN USA 55964
----- Original Message -----
From: "Cy Shuster" <charter1400@charter.net>
To: <pianotech@ptg.org>
Sent: Friday, January 25, 2002 2:06 AM
Subject: Re: Wapin bridge


> The sense that I got out of that was that a more rigid termination point
on
> the bridge allows more energy to stay in the strings, increasing sustain.
> This would imply that some "energy" (in some form) passes through the
> strings to the bridge.  I was wondering if the "before" and "after" graphs
> of actual measurements would be useful to this discussion.  Do both
theories
> predict the observed results?  (Or do we need a better experiment?)
>
> I also thought it was interesting how they described "mechanical energy"
> being converted to "acoustical energy" at the bridge.  Are these terms
> well-known?  I don't want to muddy the semantic waters.
>
> --Cy Shuster--
> Rochester, MN
>
> ----- Original Message -----
> From: "Roy Peters" <roy.peters@mindspring.com>
> To: <pianotech@ptg.org>
> Sent: January 24, 2002 9:49 PM
> Subject: Re: Sound waves(The behavior of soundboards)
>
>
> > Cy:
> > You were right.   My liner notes agree with your liner notes.  My hangup
> was on
> > the use of the word "resistor".  It's a different  way of thinking about
> it.
> >
> > Roy
> >
>