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Re: Conical pipe

Author: lepetitsuisse
Date: 2006-03-02 13:06
Attachment: harmonics.jpg (86k)

Dear Gérard,

The formula you're asking an explanation for, is the expression for the eigen-frequencies (fréquences propres) of a conical tube (see harmonics.jpg I took from the pdf file of Benades study available here: http://ccrma.stanford.edu/marl/Benade/documents/Benade-Physics323-1977.pdf)
This formula gives you the value of any n-numbered eigen-frequencies (just replace "n" by any number). This has nothing to do with an impedance of the cone by the way.
This is fairly complicated physics and as I don't know your background I won't go to much into details here. If ever you'd like a more detailed explanation, just let me know.

Lepetitsuisse

Post Edited (2006-03-02 13:15)

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