Hi Fred, I remember hearing Ed McMorrow's take on this. When the hammer strikes the two strings, the third string is out of phase, which causes noise on a slow damper release. However, his solution was to tell the pianist not to do it. FWIW. YMMV. Etc. Regards, Zeno Wood On Thu, May 6, 2010 at 1:09 PM, Fred Sturm <fssturm at unm.edu> wrote: > There has been discussion in the past on this list of the problem of > damper return noise when playing with una corda. This problem has really > been bugging me more and more. The issue is that the dampers work fine with > next to no return noise except when the una corda pedal is used. But when > the u c is used, there is considerable, often very audible return noise, and > it happens when someone is trying to play very softly so is doubly annoying, > essentially in areas where there are trichord damper felts. I have tried > lots of things, the most promising of which is to tilt the dampers very > subtly so that flats hit the strings slightly ahead of trichords, and this > helps but doesn't eliminate the problem. Different damper felt doesn't seem > to help, though I can't say I have tried everything (haven't tried Yamaha or > Kawai, for instance). > I am at a loss what to do to avoid this other than to change hammer > alignment and shift parameters so that all strings are always struck by all > hammers. I am beginning to suspect this may be a major reason why the > Steinway basement guys decided to make that change to their standard > procedure. While I like to have the two string tonal palette available, the > tradeoff of that return noise seems to wipe out the advantage. > Does anyone else have thoughts on how to resolve this issue? > Regards, > Fred Sturm > fssturm at unm.edu > http://www.createculture.org/profile/FredSturm > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100506/56d7b6fb/attachment.htm>
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