From: Watson 'Atto Parsec' Name
Subject: Re: Replacement mic for walkie-talkie
X-Newsreader: MicroPlanet Gravity v2.60
Date: Wed, 4 Dec 2002 20:25:25 -0800
NNTP-Posting-Date: Wed, 04 Dec 2002 21:26:24 PST
Organization: InReach Internet
In article , news@kiSPjoAMma.com talked
> if the mic is too sensitive then stick a resistor in series with its signal
> to find the right resistance hook in a 10k ohm pot or similar.
> this will reduce the mic sensitivity, avoid resistors to ground as it is
> bound to be a powered electret condensor mic and it needs some DC.
Most of the handsets of our digital PBX phones at work use a resistor
directly across the electret mic element in the handset. This may vary
from 150 to 470 ohms, and occasionally no resistor is used. My guess is
that this is to compensate for different element sensitivities.
> the distortion you are experiencing is most likely the clipping limiters
> used in this kind of equipment.
> more expensive gear has a pre-clipper AGC, the clipper just chops off peaks
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