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From: lrb@rrivax.rri.uwo.ca (Lance R. Bailey)
Newsgroups: rec.audio.high-end
Subject: Re: Emphasis
Message-ID: <7035@uwm.edu>
Date: 17 Oct 90 13:02:56 GMT
Sender: news@uwm.edu
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Approved: tjk@csd4.csd.uwm.edu


In article <7000@uwm.edu>, RDonaldson@wl7.Prime.Com (Roy Donaldson) writes...
>... the word
>'Emphasis' lit up. I didn't even know there was a word emphasis on the
>display. Can anyone explain what this means ? Is it how the CD was recorded ?

the meitner CD-3 has a 'de-emphasis' led.  from their manual:

	"De-emphasis. This LED will illuminate when you play a disc that has 
	been recorded using emphasis. Emphasis is an encoding system not unlike
	Dolby for tape decks, intended to improve signal-to-noise ratio. Because
	CD technology has inherently good signal to noise characteristics,
	emphasis is used infrequently in the recording of CDs."

>Is it going through some extra/less ciruitry on my CD play (Denon DCD 920) ?

i would hazard yes, although a keen eye to the manual might lend a clue :-)
now a Dolby cassette played without dolby sounds markedly different than one
played with dolby. following through, a CD that is recorded with emphasis 
but played without should sound 'odd'.

The only CD I've heard with emphasis is the Cambridge Singer's _Faire_Is_The_
_Heaven_.  coincidentaly, also a fine, fine recording. very good front/back
image, size of image, and even when in unison, individual voices can be
pinpointed.


Lance R. Bailey, Systems Manager 
================================   box: Robarts Research Institute
email: lrb@rri.uwo.ca                   Clinical Trials Resources Group
  fax: 519.663.3789                     P.O. Box 5015, 100 Perth Dr.
  vox: 519.663.3787 ext. 4108           London, Canada N6A 5K8