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Path: utzoo!watmath!clyde!burl!ulysses!allegra!mouton!karn
From: karn@mouton.UUCP
Newsgroups: net.audio
Subject: Re: hearing songs before they start
Message-ID: <142@mouton.UUCP>
Date: Sat, 25-Aug-84 14:43:01 EDT
Article-I.D.: mouton.142
Posted: Sat Aug 25 14:43:01 1984
Date-Received: Sun, 26-Aug-84 01:17:34 EDT
References: <2197@sdccsu3.UUCP>
Distribution: net
Organization: Bell Communications Research, Inc
Lines: 15

This phenomenon is called "print through", and can happen with either
tapes or LPs (but not CDs).  The delay you hear between the "pre-echo"
signal and the actual beginning corresponds to one revolution of the
tape or disk. With tapes, the magnetic signal actually "prints through"
one layer of the tape backing, transferring its magnetism to the
adjacent layers. You hear only the first printed-through layer because
there is silence otherwise before the music starts.

With LPs, it is possible for the impressions of one groove to "bleed
over" into adjacent grooves, depending on the groove spacing, audio
level, vinyl, etc.

Yet another reason to go digital!

Phil