after ring

[Ed Sutton]

Hi Roger,
        Here's the difference: Voicing the front side of the hammer dampens
only the reflected wave going from the hammer back to the capo during the
time of hammer contact.  Once the hammer is off the string, the duplex
operates freely.  Presumably this gives better sustain than damping the
duplex with glue or felt.  You get the power and brightness from the hard
back side of the hammer sending its wave toward the bridge, while damping
some of the impact zing at the capo.  At least that is the theory...;)   It
does make a difference somehow.
        It should also help with agraffe noise, though I haven't tried that
yet.
        I got this from the Renner voicing instructuions, and also from Bill
Clayton who learned it from Fred Drasche.
My approach is pretty finicky: I draw a line across the hammers through the
strike point, then start with shallow needling at the line, getting deeper
toward the shoulder.  5 pokes with a 3 needle tool is enough to make a
change.
        Ed S.



----- Original Message -----
From: "Roger Jolly" <roger.j@sasktel.net>
To: "College and University Technicians" <caut@ptg.org>
Sent: Monday, January 13, 2003 11:11 AM
Subject: Re: after ring


> At 05:30 PM 1/9/2003 -0500, you wrote:
> >This is a good approach.
> >Before reshaping the capo, try needling the front side of the hammers
only.
> >This will often reduce front duplex noise with very little loss of power.
> >EdS
>
> Hi Ed,
>              A dab of white glue applied to the wire of the forward
> terminating, will greatly reduce that noise by de tuning the duplex.
> Just another emergency fix.
> Regards Roger
>
>
> _______________________________________________
> caut list info: https://www.moypiano.com/resources/#archives
>