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Conical pipe

Author: gg590
Date: 2006-03-02 12:26

Good morning,
I'm French, and I leave in the North of France
I'm very interesting by the acoustic of saxophone, and repare then as amateur...
At the present, I'm trying to understand the study of M. BENADE
"Acoustical evolution of wind instrument"
In the page 3 of this document :
We have an first variation of the cylindrical tube for to obtain (the expanding cone).
The expression of fn = fn = (C/4L) Square (2n-1)*2 + (8/p2) (L/Xo)
Can anyone explain this and the calcul of impedance ?
Take you very much for your help !
Sincerely
Gérard

I am French
Born the 02 07 1953
I leave in the North of France at Wormhout 59470
I am interesting by the saxophone acoustic
My postal address :
Gérard COUTTENIER
516, route de Bergues 59470 WORMHOUT

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