Klarinet Archive - Posting 000876.txt from 1997/05

From: Stephen Froehlich <shorthnd@-----.edu>
Subj: Re: Ligatures - OK Please explain
Date: Fri, 30 May 1997 11:42:00 -0400

On Fri, 30 May 1997 Jrykorten@-----.com wrote:

> I too believe that the plating is too thin a substrate to propigate the type
> of vibrations that could couple from a reed. The only thing that I can think
> that ligatures in general can have, as far as an effect on reed behavior, is
> energy that is or isn't reflected back into the reed. Coupling the body of
> the reed mechanically to the moutpiece table should be equally well handled
> by all the ligatures on the market I see. But, using a rovner instead of my
> old bonade, I can tell the acoustic difference between these designs easily.

Considering the speed of sound in metal, the harmonic of the
plating layers should be much, MUCH too high. Back of the envlope says
240000 Hz. (c@-----.05in) You may get effects at 1/4 of
this freq. but no lower. Perhaps it effects how the reed couples to the
mouthpiece. Like is there a charastic air or water layer in there?

Sincerely,
Stephen Froehlich