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<DIV><FONT face=Arial size=2>I need some input about a piano that =
has a serious
damping (actually a non-damping) problem. Tones continue to ring =
after the
key is released. It is particularly bad on F#4 which rings at its =
own
pitch, G#4 to a lesser extent, and C#3, D3, and D#3 which rings at =
the
double octave + 5th. The piano is a Baldwin Acrosonic =
#386458. The
owner is a piano teacher which makes the problem a bit more acute (It's =
driving
her out of her mind).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>So far I have adjusted the pedals to be =
sure that
they are damping well and they seem to be. I tried muting the =
non-speaking
parts of all strings, and blocked off all the bass strings in their =
speaking lengths, as well as the treble strings above the dampers. =
F#3
still singing like a canary. I even blocked the F#3 string itself, =
and it
goes "Bonk" when the hammer strikes but continues singing the tone the =
same as
before. I moved the piano out from the wall and checked to make =
sure there
was nothing contacting the sound board. I tapped the strings to =
the bridge
to be sure that there wasn't some risidual vibration being made =
there.
There is a bit of a false beat in the left string of F#3, but that =
shouldn't
cause the excess ringing. G4 not ringing, F#4 and G#4 are.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>There are a lot of knick-knacks in the =
room, and I
wonder about suspecting some vibration in that area. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>If anyone has a suggestion as to what I =
might try
in order to eliminate this annoying problem I would be grateful for your =
input.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ed Carwithen</FONT></DIV>
<DIV><FONT face=Arial size=2>Associate PTG</FONT></DIV>
<DIV><FONT face=Arial size=2>John Day, OR</FONT></DIV>
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