Helmholtz and Steinway

Ron Nossaman RNossaman@KSCABLE.com
Mon, 19 Nov 2001 06:44:12 -0600


>I dont see that Conklins statement says anything about whether or not the
>waves are impeded in any sense by termination points, but he does say
>directly that their frequencies are goverened by the speaking lengths.
>Seems interesting to me that the speaking length then could possibly be
>determinant in its effect on the strings longitudinal frequency, while
>haveing no effect (or almost none perhaps) on the movement of these waves
>beyond the borders of the speaking length.

I'd put it considerably more in the category of unlikely than interesting.


>This would jive tho, with the statement made by one of you all about the
>excitement of a longitudinal wave in one of the duplex lengths being able
>to only excite its own fundemental and partials in the speaking length.

Which is a point based on what I consider to be that unlikely premise. 


>I am unconvinced that plucking the string in the example Ron gives is
>neccessarilly the same as exciting the longitudinal mode, which would
>perhaps explain why he doesnt get the same results from both front and
>back duplex modes. I am not sure that this "plucking" experiment of the
>front duplex has anything at all to do with longitudinal waves. In any
>case most of what I have found about exciting longitudinal frequencies in
>strings has to do with rubbing them... sort of like how one gets the ring
>from a crystal glass to sound. This would mean that the plucking
>phenomena then is explained by something else.

Which is, of course, my point. And I've already described what that
something else would be.


>I poked around the nett last nite looking for something directly relative
>to this but couldnt find much.
>--
>Richard Brekne

No kidding?

Ron N


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