termination and inharmonicity ?

[Joe & Penny Goss]

Hi Ron,
The question that Newton was responding to was mine.
Perhaps it was not well stated.
If one has a unison of two wound strings that have different harmonic
structure can one remove winding from one to match the other?
If so, which one would be striped of winding?
My guess would be the one with the lowest inharmonic readings, but I have
never had a piano that was not a clients to attempt this test.
Joe Goss
----- Original Message -----
From: Ron Nossaman <RNossaman@KSCABLE.com>
To: <pianotech@ptg.org>
Sent: Sunday, February 13, 2000 5:06 PM
Subject: Re: termination and inharmonicity ?


> >Newton Hunt wrote:
> >
> >> Change the wrap is the only way.
> >>
> >>                 Newton
>
> Not the only way. Core wire size affects inharmonicity too.
>
>
>
> >Ah come on now Newton... not really so... you can get into this buisness
> >of longitudinal modes.. and termination profiles DO have an effect.. and
> >the effect does not have to be soooo very large to make an impact.
>
> >Richard Brekne
>
> So what are the effects of longitudinal modes on inharmonicity? Also, how
> does termination shape (generally) correlate to inharmonicity? I don't
have
> access to the article and I'm curious.
>
> BTW, from a scaling point of view, the inharmonicity formula just gives
you
> a visual means of smoothing the plotted curve at scale discontinuities,
> like speaking length progression changes at plate struts, bass/tenor
break,
> plain/single wound, and single/double wound. It isn't really necessary
that
> it be all that accurate unless you are using it to compute tunings or
> arguing minutiae.
>
> Ron N
>