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- Newsgroups: rec.audio
- Path: sparky!uunet!enterpoop.mit.edu!bloom-picayune.mit.edu!ankleand
- From: ankleand@mtl.mit.edu (Andrew Karanicolas)
- Subject: Re: Digital critics - sampling argument is nonsense
- Message-ID: <1993Jan23.201459.18850@athena.mit.edu>
- Sender: news@athena.mit.edu (News system)
- Nntp-Posting-Host: ampere.mit.edu
- Organization: MIT Microsystems Technology Laboratories
- References: <1993Jan20.211233.37643@watson.ibm.com> <30641@castle.ed.ac.uk>
- Date: Sat, 23 Jan 1993 20:14:59 GMT
- Lines: 73
-
- In article <30641@castle.ed.ac.uk> sss@castle.ed.ac.uk (S S Sturrock) writes:
- >What does please me is that the designers of digital designers are finally
- >coming down off their high horses where they have sat for so long claiming
- >that digital is perfect and are now listening to those of us who have
- >complained about the sound and they are finding that we may well have a
- >point and are *DOING SOMETHING ABOUT IT* rather than declaring us all
- >loonies who want to live in caves or whatever. HDCD no doubt stems from a
- >lot of learning between both camps and I openly welcome it. If at last it
- >gives me CDs I can happily live with then *YIPPEE!* is all I can say.
- >Until it becomes freely available though I will keep spinning and buying
- >vinyl because I find it captures the sound in a way that communicates with
- >*ME*.
-
-
- I've stopped reading rec.audio about a year ago for many reasons. But
- today, I figured what the heck, let's see what's brewing these days.
- The same old CD vs LP war! As I was paging through the articles, I
- wanted to respond but felt it would be better for a new generation to
- recycle the same old garbage. At some point, I could not take it
- though, this article by S S Sturrock, for example. Because it is so
- difficult to communicate in normal English language on wreckage.audio,
- I use BOLD and needless repetition to ensure that my point gets
- across. When confused at seeing the bold, take a deep breath, wait a
- few seconds, then continue. Ready? OK.
-
- To S S Sturrock: wrong, wrong, wrong, WRONG :) First of all, data
- conversion systems are NOT designed by digital designers. They are
- not designed by the group of people who build 486 CPUs. The digital
- designers who accomplish such feats as the 486, etc, are remarkable
- designers in building complex, manufacturable systems. However, it
- is important that the term DIGITAL AUDIO is understood to refer to the
- DATA CONVERSION and MEDIA STORAGE aspect. Data conversion systems are
- designed by ANALOG DESIGNERS who must deal with analog as well as
- digital design techniques. The point is not to draw a line so much as
- to recognize that people who design data conversion systems must draw
- from a wide source of knowledge that is very different than that
- needed to design 486 CPUs. Data conversion are ANALOG CIRCUITS. Yes,
- ANALOG CIRCUITS. Yes, even the 1-bit ADC and DAC modulators are
- ANALOG CIRCUITS. The decimation filters are digital systems however,
- IN CONTRAST.
-
- The improvement in digital audio has practically NOTHING to do with
- learning about LP or related systems. NOTHING. The improvement has
- to do with recognizing the limitations of digital audio in terms of
- INTEGRATED CIRCUIT design and manufacturing. Yes, ICs, not discrete
- elements. The improvement has to do with the use of different data
- conversion architectures, such as oversampling modulators. The reason
- why manufacturers have embraced these new techniques is that, at this
- time, they represent a cost effective solution to the difficult problems
- of data conversion. So, it is true, the digital audio system was not
- perfect, from the beginning. It's not perfect now. However, it has
- capabilities that LP systems do not have and it has vastly superior
- performance ADVANTAGES.
-
- Now, if you want to listen to vinyl, fine. However, you should not
- live in a fantasy world about the digital audio community catching up
- to LP. The goal of digital audio is NOT to equal the LP but to
- completely obliterate it, and other archaic technologies, into
- musuems, where they belong. The quest is SUPERIOR AUDIO and digital
- audio has much promise. LPs do not have any promise for improvement
- at this time as far as a practical entity that people can buy at any
- cost. As it is, the CD itself will at some point become obsolete as
- semiconductor memories become more dense and cheaper. The era of
- non-mechanical media for consumer audio is not too distant. Data
- conversion design WILL NOT STAND STILL. The LP format is FIXED and
- will disappear.
-
- Cheers,
-
- --
- Andrew Karanicolas
- MIT Microsystems Technology Laboratory
- ankleand@mtl.mit.edu
-