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From: czp@houxa.UUCP (C.PODARAS)
Newsgroups: net.audio
Subject: Re: CD Don't you just love 'em?
Message-ID: <405@houxa.UUCP>
Date: Tue, 8-May-84 17:43:29 EDT
Article-I.D.: houxa.405
Posted: Tue May  8 17:43:29 1984
Date-Received: Wed, 9-May-84 02:52:10 EDT
References: <1554@sunybcs.UUCP>, <338@ihu1g.UUCP>
Organization: AT&T Bell Labs, Holmdel NJ
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re: bob fishell's comments (non-antagonistic followup)

>"...any problems with CDs are in the recording process, not the medium 
> itself..."

replace 'recording' with 'playback' or 'reconstruction' and this will be a 
more accurate statement.  digital signal processing works.  sampling theory 
works.  nyquist criterion works.  most current commercial playback d/a's and 
reconstruction filters, however, leave a bit to be desired.  try listening 
to a (technically) good cd on a player that does (technically) correct d/a 
conversion, and the results are pleasing indeed...

>"...vinyl will hopefully be a dead medium in twenty years..." 

it'll probably be a lot sooner than that.  oh, sure, analog discs (sorry about 
the spelling, i'm an ultimate frisbee player) will be around for a long time 
as a very low-cost, low-tech medium.  but when a small, fly-by-night outfit 
like sony invests untold megayen in facilities and research for cd...well, 
you get the picture. (no flames about rca and ced, please. they never knew 
what they were doing) besides, sony has made public statements of corporate 
philosophy which state that they are out to have cd and cassette fully supplant
analog vinyl as the playback medium of choice by the mid-to-late 1980's.  
sounds mildly serious on their part.  now if they'd only up the g*dd*mn 
sampling frequency to make life a little more bearable for the pros and 
the film industry...

hmm... wonder if anyone will ever put lindisfarne or it's a beautiful day on cd?

and, regarding the origional article that bob replied to (cd = metallic sound):
i'm getting awful tempted to post a neo-flame about comparing cd vs. analog, 
which relates here.  so what was the cd? was it fully mixed and mastered 
digitally? or was it from an analog production master?  how about the 
equipment used to play it back? a sony cdp101 maybe (gawd forbid)?  could 
the speakers handle a *mercifully accurate* high end that the digital medium 
provides (digital recorders don't "smooth things out" when you run hot levels, 
like an analog machine always does)?  or the playback electronics (enough 
transient current capability in the power amp)? or, for that matter, are your 
ears used to what real clean, non-rolled off high end sounds like?

this technology is in it's infancy, folks.  it's growing, and it will get 
better as the manufacturers get their act together.  look, a little over ten 
years ago, a four-banger calculater was hot stuff...then came these pc things..
'nuff said.

	yerz trooli from just a little ol' digital audio engineer,

	chuck podaras
	bell communications research
	holmdel, gnu joizee
	{..., ihnp4}!houxa!czp


"lookie here, martha...why, this dang thing ain't got no grooves!"