[CAUT] Anechoic chamber - experiments

[McCoy, Alan]

Piano on caster cups, off caster cups.
With DC undercover  and without.
With string covers, and without.

Alan


-- Alan McCoy, RPT
Eastern Washington University
amccoy at ewu.edu



________________________________
From: Jim Busby <jim_busby at byu.edu>
Reply-To: CAUTlist <caut at ptg.org>
Date: Mon, 21 Jun 2010 06:40:38 -0700
To: CAUTlist <caut at ptg.org>
Subject: Re: [CAUT] Anechoic chamber - experiments

All,

Thanks to everyone for the ideas. I'll compile the list and pass it by here in a few weeks. Very good stuff!

Patrick, I was there and that's something that would be interesting. Will do!
\
Jim Busby

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of James Patrick Draine
Sent: Friday, June 18, 2010 6:06 PM
To: caut at ptg.org
Subject: Re: [CAUT] Anechoic chamber - experiments

Hi Jim,
I'd be most interested in studies of the Jorgensen effect: unisons which go flat as the 2nd and 3rd strings are tuned to the first string. Roger Jolly wrote his own observations and measurements of this on pianotech, a long time ago. Sanderson co-taught a class with Jorgensen investigating the effect, but I skipped the class(es). I think it was either at Reno or Chicago (2001 or 2002). I don't believe Sanderson's findings were ever published.
Patrick Draine



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