[pianotech] Hammers or duplex?

[Kazuo Yoshizaki]

It's also caused by poorly voiced hammers. Refer to the item 2 of the
hammer voicing section in the following document.

http://www.lloydmeyer.com/PDF/Voicing_the_Renner_Hammer.pdf

An Estonia grand I serviced before had this problem.

Yoshi

On Wed, Jun 2, 2010 at 11:19 AM, Joe Wiencek <joespiano at gmail.com> wrote:
> This subject was heatedly debated recently, that is, which is the source of
> extraneous noise, poorly mated hammers, or issues relating to duplex length?
>  I just want to throw out another question, because I'm not a scientist.
>  What about upright pianos?  Even with poorly shaped hammers, I don't
> encounter too much noise in uprights?  Any one with more empiricism care to
> comment?
>
> Joe Wiencek
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