Sudden damper buzz syndrome

[Marcel Carey]

Hi Geoff,
 
My first question is: Did you adjust the sustain pedal on your service
call? If you did, I suspect that maybe you adjusted it too tight. Maybe
the dampers are just supended over the strings a little. This would be
my first check.
 
Marcel Carey, RPT
Sherbrooke, QC

-----Message d'origine-----
De : pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] De la
part de Geoff Sykes
Envoyé : 18 novembre 2006 22:33
À : Pianotech at Ptg. Org
Objet : Sudden damper buzz syndrome


Greetings all --
 
Last week I tuned a customers Kawai grand piano. The customer was out of
town so he left me a key to his studio. He returned the other day and
while he is happy with the tuning and the other repair work I completed
he mentioned that all the wound strings are now exhibiting a buzz when
the damper comes into contact with the played string. Once the damper
has completely engaged the buzzing stops and the strings damp correctly.
He says it is objectionably noticeable only on the entire wound bass
string section of the piano. This is not something that I noticed while
I was there so I'm curios as to your thoughts on what could have caused
this and what I might be able to do to affect a timely fix. FWIW, he
lives a couple of miles from the beach but has a DC de-humidifier
installed. The piano also lives in a small, relatively well sealed but
otherwise non-climate controlled garage studio. 
 
-- Geoff Sykes
-- Assoc. Los Angeles.

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