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

From: WVE~ol.com
Date: Wed, 2 Oct 1996 13:21:04 -0400
Subject: Re: CX-12 & materials

In a message dated 96-10-02 08:06:34 EDT, Doug T. writes:

>If you play above a whisper you will know that you feel the covers
>vibrating. This is contributing to the sound..
>
Here is a quote from THE ACOUSTICAL FOUNDATIONS OF MUSIC by John Backus,
Professor of Physics at Univ So. Cal. Although he is talking about a cornet,
the facts seem to apply to the harmonica where the area of the covers is much
less than the surface area of the cornet. Besides that, the sound that you
feel is being absorbed by your hands.

"Wall vibrations are present and can be felt, but they should not be expected
to radiate enough sound to affect the quality of that normally radiated by
the instrument, or to vibrate sufficiently to affect the internal standing
wave. Hence we should not expect the material to have any influence on
tone."

Vern