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From: lgssq@dsd.UUCP (Roger Stenerson)
Newsgroups: net.audio
Subject: Re: CDs: Digital --> Analog --> Digital ?
Message-ID: <385@dsd.UUCP>
Date: Sat, 26-Jan-85 01:09:32 EST
Article-I.D.: dsd.385
Posted: Sat Jan 26 01:09:32 1985
Date-Received: Mon, 28-Jan-85 05:59:19 EST
References: <2694@ihldt.UUCP>
Organization: AMPEX DSD, Redwood City, CA.
Lines: 40

> Here's a question for those who know about recording procedures:
> 
> I recently bought several of CDs that were labled as being
> "Digital Master/Analog Recording".  I figured that the most
> important thing was that it was digitally mastered.
> 
> I got them home and found out that I was wrong.  From the levels of hiss
> on the disks, it is clear that they were produced from an analog source.
> My question then, is "If the recording is digitally mastered, why do
> they make the CD from an analog recording?"  Seems strange to me.
> 
> Bob Stewart
> ihldt!stewart

   Several of the latest discs that I have bought have a new label that
tells which technologies were used to make the disc.  Here is the 
description:

       "This recording technology is identified on the back cover by a
	three-letter code:

	DDD  Digital tape recorder used during session recording, mixing
	     and/or editing, and mastering (transcription).
	ADD  Analogue tape recorder used during session recording; digital
	     tape recorder used during subsequent mixing and/or editing and
	     during mastering (transcription).
	AAD  Analogue tape recorder used during session recording and
	     subsequent mixing and/or editing; digital tape recorder used
	     during mastering (transcription)."

	(info obtained from "Vangelis:  Soil Festivities")

   Thus, the disc in question here was either a ADD or AAD which accounts
for the noticeable hiss.

Roger Stenerson		UUCP :  {hplabs,fortune}!dsd!lgssq
Ampex Corporation,	Advanced Technology Division
Redwood City, CA

"The above opinions are mine, or at least they were when I wrote them"