Muting high treble

[Tom Servinsky]

 > If you are setting the temperament aurally and need to use a mute strip
for the
> temperament octave (or two) then pull the unisons after setting the
> temperament and tune unisons as you go the rest of the way.  I think it
> makes for better stability.
>
> David Love
>
Not to mention that the cumulative affect of 3 unisions sounding has a
tendency to sometimes create a different pitch than only the single string
of a unison being sounded.
Tom Servinsky,RPT
> ----- Original Message -----
> From: "Isaac OLEG SIMANOT" <oleg-i@wanadoo.fr>
> To: <pianotech@ptg.org>
> Sent: March 23, 2002 11:30 AM
> Subject: RE: Muting high treble
>
>
> >
> >
> > On some pianos the coupling effect put the unisson sharp after 1 second
> > ringing.  the EDT will read an unison sharper than the one string alone
> > sounding, because you have to wait to have a clear pattern.
> >
> > That can depend of the way the unisons are done too.
> >
> >
> > Isaac OLEG
> >
> >
> >
> > > -----Message d'origine-----
> > > De : owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]De la
part
> > > de Don
> > > Envoye : samedi 23 mars 2002 07:30
> > > A : pianotech@ptg.org
> > > Objet : Re: Muting high treble
> > >
> > >
> > > Hi Jay,
> > >
> > > I have tried to measure the effect you are speaking of. It would be
rare
> > > for it to be as large 2 cents and it is inconsistant from piano to
piano
> > > even with the same make and model. I suspect if you are having
> > > this sort of
> > > pitch drop after doing a unison that plate flex (pitch correction) is
> > > making the difference.
> > >
> > > At 03:03 AM 3/23/02, you wrote:
> > > >I thought this phenomenon is just the opposite.  The pitch
> > > sounds 2-4 cents
> > > >sharper when the strip mute is in, compared to when it's out and
> > > after the
> > > >unisons are tuned. Isn't this common and tuners must compensate?
> > >  The pitch
> > > >difference is obvious when comparing a muted trichord - hearing just
> one
> > > >string compared to the overall pitch after tuning its two unisons.
> > > >
> > > >Jay Mercier
> > >
> > >
> > > Regards,
> > > Don Rose, B.Mus., A.M.U.S., A.MUS., R.M.T., R.P.T.
> > >
> > > mailto:pianotuna@accesscomm.ca
> > > http://us.geocities.com/drpt1948/
> > >
> > > 3004 Grant Rd.
> > > REGINA, SK
> > > S4S 5G7
> > > 306-352-3620 or 1-888-29t-uner
> > >
> >
> >
>