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Re: Re: testing mic self-noise

Subject: Re: Re: testing mic self-noise
From: Marty Michener <>
Date: Thu, 29 May 2003 06:55:43 -0400

Hello all.
Re types of mic noise:

Mic or pre amp noise that is a smooth hiss is clearly desirable, and maybe 
this has also already been said.  Transistors in general and op-amps in 
particular are likely to produce what I think is called "shot noise", as if 
shot are dropped onto a surface.  This causes the sputtering and is 
particularly irritating to listen to, like an acoustical version of the 
water drop treatment.  Pre amps that use FET's usually produce more of a 
smooth hiss, if memory serves me, (more like a resistive gate than a 
hole-injection process?).

my best regards,

Marty Michener
MIST Software Associates
PO Box 269, Hollis, NH 03049


PS: As a personal note to my many friends: I have turned several corners of 
life, since last posting, which leaves me little time.  Since my 401 K has 
now fallen below embarrassing levels, and my EnjoyBirds is not selling 
well, I have gone back to work - physical work as a landscape technician, 
shovelling dirt and planting woody species and other perennials mostly in 
Massachusetts, and also as a web architect, learning the latest HTML. Both 
jobs are working for my daughter: www.cmclandscapes.com   I am also 
rehearsing evenings for my first in-my-life play (at 63 yrs) and hope to 
appear in the ensemble of "Fiddler" in Nashua, NH in July, if I can ever 
learn the choreography. ;^)

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