Mysterious Buzzing

[Jim Kinnear]

Patrick
Had  the same annoying problem .. . eventually found a kid's glass marble,
wedged between the soundboard and the rear bottom frame . . . only buzzed
for Ab . . .
took an hour to locate with the owner pounding the key and me crawling
around on my hands and knees with my head in the piano at her feet . .
wasn't a pretty picture . .

I'm sure she wondered if I was some kind of nut . . . till I showed her the
marble !!
patience & persistance got a whole new meaning !!

-------------------------------------------------------------------------
Jim Kinnear
www.kinnearpiano.com
Collingwood, ON, Canada

The aim of an argument or discussion should not be victory, but progress
  -- Joseph Joubert (1754-1824) French Philosopher




----- Original Message -----
From: "Tom Driscoll" <tomtuner@comcast.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Saturday, November 20, 2004 7:07 PM
Subject: Re: Mysterious Buzzing


>
> ----- Original Message -----
> From: "Patrick C. Poulson" <pcpoulso@pacbell.net>
> Subject: Mysterious Buzzing
>
>
> > Hello All: I need some help in tracing down a buzz in a Vose upright
> piano.
> > The buzz in question shows up while playing F5, whichi is two notes down
> > from the strut. I have done all the usual tests and corrections that I
> > usuall rely on, such as looking for cracks in the sound board, pressing
on
> > ribs in search of loose glue joints, reseating the strings, smoothing
down
> > the V-bar, cleaning up the notching, and cursing under my breath. We
also
> > vacuumed out the cabinet inside and out. Any ideas? Thanks,
> > Patrick C. Poulson
> >
>
>  Patrick,
>     No , Can't help you.
>
>
>
>     Seriously,We've all been there---What can help is to have someone
> generate the buzz whilst you crawl up ,under,over ,behind and around this
> thing.Locating where the buzz is loudest can be a good start.For example
if
> its louder at the top in front one would look to pressure bar etc as
opposed
> to louder behind the soundboard at the edge would direct you to the
> soundboard-rim connection.
>     I'm not inferring that either of these is your problem ,but narrowing
> down location is a good start.
>     If you can isolate this buzz to one unison and further to one string,
> sometimes replacing the string can eliminate the buzz,
>     I know its not very conclusive as to the cause,but it will sometimes
> work.
>     Tom Driscoll RPT
>
>
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