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Article #4290Re: Why I hate CDs (was Re: I don't need HDTV!)
From: Mark Lubratt
Date: Mon, 19 Mar 1990 03:43
Date: Mon, 19 Mar 1990 03:43
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In article <1554@redsox.bsw.com> campbell@redsox.bsw.com (Larry Campbell) writes: >CDs would have been nice if they had a decent high frequency rolloff; but if >I A/B an LP and a CD it is clear that the CD has cut off the higher >frequencies. Even if you can hear beyond normal hearing, the fact is that when listening to normal music, the energy in the lower frequencies mask out your perception of higher frequencies. That is why one can make an amplifier with a 15KHz rolloff and noone could tell except if they send pure tones through it. For normal broad band applications, the lower frequency energy will mask out what you would normally hear above 15KHz and you will never know it is missing. The other problem is that you aren't doing true A/B testing. You are biased. You can tell which is the CD and which is the LP just by the background hiss. -- Mark Lubratt, MIT Microsystems Technology Laboratories, mpl@caf.mit.edu
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!snorkelwacker!mit-eddie!mit-amt!mit-caf!mplReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!snorkelwacker!mit-eddie!mit-amt!mit-caf!mpl From: mpl@mit-caf.MIT.EDU (Mark Lubratt) Newsgroups: sci.electronics,comp.std.internat,rec.video,comp.graphics Subject: Re: Why I hate CDs (was Re: I don't need HDTV!) Message-ID: <4154@mit-caf.MIT.EDU> Date: 19 Mar 90 03:43:02 GMT References: <sa0KhqO00Uh7M2R25C@andrew.cmu.edu> <1554@redsox.bsw.com> Reply-To: mpl@mit-caf.UUCP (Mark Lubratt) Organization: Microsystems Technology Laboratories, MIT Lines: 20