Vibrating strings and bridges

[Richard Brekne]

Thanks Phil.

You know me :)... I'll read ANYthing.. hehe.

RicB

Phillip L Ford wrote:

> For those that are still interested in this topic I found what I think is an
> interesting site.  Apparently it's the draft of a book about the behavior
> of musical instruments.
>
> http://www-ccrma.stanford.edu/~jos/waveguide/waveguide.html
>
> This is from a Stanford site.  Also here's another link to a page giving
> many tutorials, etc.  A wealth of information if you have the time:
>
> http://www-ccrma.stanford.edu/~jos/pubs.html
>
> I haven't spent much time looking at this as yet.  However, here's one little
> quote which I thought was interesting because it mentions bridge rigidity
> and also the relative rigidity of electric guitar bodies (for which I took some
> flak for mentioning some time back).  The quote:
>
> No vibrating string in musical acoustics is rigidly terminated, since such a string would produce no sound through the body of the instrument. (Electric guitars with magnetic
> pickups have nearly rigid terminations, but even then, coupling phenomena are clearly observed, especially above the sixth harmonic.) Furthermore, it is typically the case that
> vertical transverse waves are transduced differently at the bridge. For example, the bridge on a piano is much easier to ``push'' into the soundboard than it is to ``shear''
> sidewise along the soundboard.
>
> Happy Reading,
>
> Phil F
> ---
> Phillip Ford
> Piano Service & Restoration
> 1777 Yosemite Ave - 215
> San Francisco, CA  94124
>
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--
Richard Brekne
RPT, N.P.T.F.
Bergen, Norway
mailto:rbrekne@broadpark.no
http://home.broadpark.no/~rbrekne/ricmain.html