Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.2 9/18/84 exptools; site ihlpg.UUCP
Path: utzoo!watmath!clyde!cbosgd!ihnp4!ihlpg!fish
From: fish@ihlpg.UUCP (Bob Fishell)
Newsgroups: net.audio
Subject: Re: Tape Hiss on Telarc CD's?
Message-ID: <1301@ihlpg.UUCP>
Date: Tue, 24-Sep-85 18:04:23 EDT
Article-I.D.: ihlpg.1301
Posted: Tue Sep 24 18:04:23 1985
Date-Received: Thu, 26-Sep-85 06:33:32 EDT
References: <366@eneevax.UUCP> <588@petrus.UUCP>
Distribution: net
Organization: AT&T Bell Laboratories
Lines: 20

> Assuming what you weren't hearing wasn't actually in the recording
> studio (e.g., a noisy air conditioner) then it was probably thermal
> noise in the analog electronics ahead of the A/D converter in the digital
> recorder. Microphone preamps and mixers aren't completely noise free,
> especially if you crank up the gain when miking from some distance away.


*** REPLACE THIS vinyl WITH YOUR cd ***

I hear more hiss on Telarc CDs than on others, too.  I've never looked
at it with a spectrum analyzer, but it sounds an awful lot like broadband
pink noise, not tape hiss.  I believe that Telarc uses a higher dithering
level than, say, DG, which results in the "hiss."  Every Telarc CD I own
seems to have it.  In any case, it is not objectionable; I seldom notice
it beyond the first few seconds of the recording.
 __
/  \
\__/
				Bob Fishell
				ihnp4!ihlpg!fish


Brought to you by Super Global Mega Corp .com