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Path: utzoo!decvax!linus!philabs!polaris!herbie
From: herbie@polaris.UUCP (Herb Chong)
Newsgroups: net.audio
Subject: Re: advice requested on brands of cassette tapes
Message-ID: <251@polaris.UUCP>
Date: Mon, 4-Nov-85 20:42:00 EST
Article-I.D.: polaris.251
Posted: Mon Nov  4 20:42:00 1985
Date-Received: Thu, 7-Nov-85 04:13:30 EST
References: <10838@ucbvax.BERKELEY.EDU> <953@lll-crg.ARpA> <112@emacs.UUCP>
Reply-To: herbie@polaris.UUCP (Herb Chong)
Distribution: na
Organization: IBM TJ Watson RC
Lines: 31
Summary: 

In article <112@emacs.UUCP> pz@emacs.UUCP (Paul Czarnecki) writes:
>I'm curious.  Why get the best tape that you can?  I seems to me that
>dbx would place less stress on the tape.  This is because the signal is
>compressed and has no problem fitting above the noise floor and the
>signal ceiling.  (Say if you have 90db dynamic range in the original,
>apply the 2:1 (or was it 1:2) compression and now the range is only
>45db.  If you assume a lesser range to start with the end signal is
>proportionally smaller.  You can record way under the peaks, thereby
>preserving the high frequency response of you cassette deck.

but this last line is not strictly true, at least with dbx.  remember
that dbx compresses the whole frequency range evenly.  although at
certain input signal levels the output is lower than input, at others,
the output is higher.  at the very highest frequencies, the signal may
be moved upwards enough in level that what was before a safe recording
level is now saturating the tape.  it depends upon the tape/tape deck
combination and the material being recorded and your recording level.

Herb Chong...

I'm still user-friendly -- I don't byte, I nybble....

New net address --

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