Article View: sci.electronics
Article #10519Re: A question about the Nyquist theorm
From: Dave Hall (Sverdrup)
Date: Tue, 05 Mar 1991 14:50
Date: Tue, 05 Mar 1991 14:50
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In article <wilf.667759065@rigel.sce.carleton.ca>, wilf@sce.carleton.ca (Wilf Leblanc) writes...
>jbuck@galileo.berkeley.edu (Joe Buck) writes:
>
>>[deleted]
>
>When I bought my CD player, it said on the front panel 'Dual D/A
>converters'. For fun, I asked the salesperson what that meant.
>The reply was rather funny, and of course completely inaccurate.
>
>What does this really mean ? (I figured maybe two distinct D/A's rather
>than one D/A and two sample and holds).
OK, I may be advertising my ignorance of CD player design here,
but it seems to me it would be very difficult to produce right and left
channel (stereo) outputs without 2 separate D/A's. My lack of expert
knowledge leads me to believe that the 'Dual D/A converters' logo
is like building a car with a V-8 engine and advertising 'Dual Quad
Cylinder Heads' as a unique technical advancement! What is the real
story? Let's hear from some CD technology wizards.
Technical Details
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!gatech!usenet.ins.cwru.edu!eagle!mars.lerc.nasa.gov!tohallReferences:
<20408@shlump.nac.dec.com> <625@ctycal.UUCP> <11515@pasteur.Berkeley.EDU> <wilf.667759065@rigel.sce.carleton.ca>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!gatech!usenet.ins.cwru.edu!eagle!mars.lerc.nasa.gov!tohall From: tohall@mars.lerc.nasa.gov (Dave Hall (Sverdrup)) Newsgroups: sci.electronics,comp.dsp Subject: Re: A question about the Nyquist theorm Message-ID: <1991Mar5.155748.29328@eagle.lerc.nasa.gov> Date: 5 Mar 91 14:50:02 GMT References: <20408@shlump.nac.dec.com> <625@ctycal.UUCP> <11515@pasteur.Berkeley.EDU> <wilf.667759065@rigel.sce.carleton.ca> Sender: news@eagle.lerc.nasa.gov Reply-To: tohall@mars.lerc.nasa.gov Organization: NASA Lewis Research Center Lines: 19 News-Software: VAX/VMS VNEWS 1.3-4