Sudden damper buzz syndrome

[Geoff Sykes]

Marcel --
 
Nope. Didn't touch the sustain pedal adjustment. The symptoms I was given
would usually be symptomatic of either hard dampers or tilted dampers. (But
they weren't that way last week.) Once the pedal, or key, is completely
released the damping action is sufficient to dampen the strings. The dampers
only buzz during initial contact. Gee, this is starting to read like a
puzzler. 
 
-- Geoff Sykes
-- Assoc. Los Angeles
 
 

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Marcel Carey
Sent: Saturday, November 18, 2006 8:09 PM
To: 'Pianotech List'
Subject: RE : Sudden damper buzz syndrome


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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