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From: karn@petrus.UUCP (Phil R. Karn)
Newsgroups: net.audio
Subject: Re: Tape Hiss on Telarc CD's?
Message-ID: <588@petrus.UUCP>
Date: Mon, 23-Sep-85 01:31:22 EDT
Article-I.D.: petrus.588
Posted: Mon Sep 23 01:31:22 1985
Date-Received: Tue, 24-Sep-85 03:21:42 EDT
References: <366@eneevax.UUCP>
Distribution: net
Organization: Bell Communications Research, Inc
Lines: 7

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.

Phil


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