Muting high treble

[Isaac OLEG SIMANOT]

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.
>
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