para-inharmonicity and tuning curves

[Jim Coleman, Sr.]

Hi Ron:

Just do the experiment with the vise grips. Find a Bass note that has
a very high peak on some freq. around C6 to C7. Clamp on the vise
grips to the bridge pin. Note that the peak disappears. I think the
weight of the pliers causes too much impedance for the longitudinal mode
to have its affect. You can still hear the note, but it is greatly modified
as I said in the other post. You can always find some high peaks among the
single string unisons. They will usually not be related in similar manner
to their neighbors. A half step higher, you may get a lower peak, etc.

Jim Coleman, Sr.

On Wed, 19 May 1999, Ron Nossaman wrote:

> 
> >
> >This should whet your appetite for awhile. BTW, no amount of voicing is
> >going to get rid of that sharp peak if it is longitudinal in nature. In
> >1967 we did an experiment where we clamped vise grips on the bridge pin
> >to eliminate the longitudinal peak, but of course that greatly modified
> >the tone of the note.
> >
> >Jim Coleman, Sr.
> 
> 
> 
> All right Jim, now you've gone and done it. I'm confused. Could you please
> 'splain this one to me real slow (you know how I am)? How would the vise
> grip eliminate longitudinal peaks? I have been curious about this
> longitudinal stuff for some time, but haven't yet taken the time to explore
> it enough that I understand how it works, or is calculated. I'd be
> interested in as much practical detail as you can muster when you get a
> minute... or so.  %-)
> 
>  Ron 
> 
>