Other web Sites
Harmonica Blues  Harmonica Amps
Harmonica Links Harmonica Pages
• Archives Home
• Years
 · 1992
 · 1993
 · 1994
 · 1995
 · 1996
 · 1997 		 · 1998
 · 1999
 · 2000
 · 2001
 · 2002
 · 2003
 
Web HarpL
Ebay Searches:
Amps:
Microphones:
Effects:
Harmonicas and Gear:
Harmonica Music and Instruction:

 

 

Harp-L Archives

[Previous Message] [Next Message]
[Previous in Thread]
[Start of Thread] [End of Thread]

From: Michael Carley
Date: Mon, 07 Oct 1996 10:55:34 BST
Subject: Re: Reed materials (fwd)

> Me
> >Not really. If it were a simple system like a mass on
> >a spring that might be true but it's not. If you change
> >the thickness (or length or whatever) and keep the same
> >natural frequencies (there is more than one remember)
> >then the other properties of the system have changed.
> >The aerodynamics are different, the reed clearances are
> >different, the player notices a difference.
> >
> I can't deny that second-order effects are present but I posit that the
> stiffness of the reed and the resulting pressure required to make it deflect
> are 95% of "feel". Reed clearances don't have to change with thickness. I
> don't believe that the players are princesses that can feel the pea under the
> mattress.
>
> Vern

I'm not talking about the second order effects, I'm talking
about the changed first order effects. You change the material,
you change the reed shape. Say you have to change the reed
clearance-then the player is going to feel a change in the
system. (S)he may need more or less puff to get the same
volume.

- --
Viscous fluids turn about in perfect synchronicity,
Spinning off a trailing edge in thin sheets of vorticity
Michael Carley, Mech. Eng., TCD, IRELAND. m.carl~eoleo.mme.tcd.ie
Home page