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From: rzdz@fluke.UUCP (Rick Chinn)
Newsgroups: net.audio
Subject: DNR Processors
Message-ID: <563@tpvax.fluke.UUCP>
Date: Wed, 13-Mar-85 12:10:37 EST
Article-I.D.: tpvax.563
Posted: Wed Mar 13 12:10:37 1985
Date-Received: Thu, 14-Mar-85 05:49:38 EST
Distribution: net
Organization: John Fluke Mfg. Co., Inc., Everett, WA
Lines: 33

Here are some more companies that make DNR type processors:

    Symmetrix
    109 Bell St.
    Seattle WA 98121
    206 682 5012

    MicMix Audio Products
    2995 Ladybird Lane
    Dallas TX 75220
    214 352 3811

Both companies make a DNR type processor, however neither uses the NSC DNR
chip. MicMix calls theirs Dynafex, Symmetrix calls theirs the 511 Noise
Reduction System. I've used both, and have a Symmmetrix unit. Both work, but
like everyone else has said, don't expect miracles on trashy sources... Both
units use the principle of a program controlled high-pass filter combined
with downard expansion.

You can get a Dynafex chip from Solid State music (chip vendor). I don't
know if they're interested in onesies/twosies, or if there are liscensing
problems (ala dolby). It may be possible to buy a DNR chip equivalent from
Sylvania (ECG general replacement line).

    GIGO....Garbage in, Garbage out

Rick Chinn
John Fluke Mfg. Co MS 232E
PO Box C9090 Everett WA 98206

{ihnp4!uw-beaver, ucbvax!lbl-csam, microsoft, allegra, ssc-vax}!fluke!rzdz
(206) 356-5232
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