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From: shauns@vice.UUCP (Shaun Simpkins)
Newsgroups: net.audio
Subject: RE: Nakamichi portable recorder
Message-ID: <1342@vice.UUCP>
Date: Wed, 16-May-84 13:28:09 EDT
Article-I.D.: vice.1342
Posted: Wed May 16 13:28:09 1984
Date-Received: Mon, 21-May-84 05:35:04 EDT
Organization: Tektronix, Beaverton OR
Lines: 19


Sorry, but whatever Nak chooses to release, it won't have dbx.  Nak long ago
said it prefers Dolby C or its own version of Dolby C, High-Com II, to dbx.
I believe one of the reasons they cited was unacceptable noise level pumping
("breathing") which is mostly eliminated by the former
systems' two-band NR scheme.  The other may be price, at least at the time
Nak decided.  dbx now uses a single chip for its vca and detection circuitry.
3-4 years ago dbx was a large amount of discrete components, about 50-80 per
channel.  However, dolby C can apparently be made from the appropriate
cascading of 2 readily available dolby B chips plus a small amount of external
parts, which reduces mfg changeover costs.

The wandering squash,
-- 
				Shaun Simpkins

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