u855203@probitas.cs.utas.edu.au (Michael Harlow) (06/24/91)
This is a summary of replies that I have received with regards to my request for sources of technical data on Dat, DCC and CD Formats. Thank you to all who replied, I appreciate the help. The last one was an old news article, which I thought relevant and thus included here for completeness. Michael. -------------------------------------------------------------------------- >From: jpb@calmasd.Prime.COM (Jan Bielawski) Organization: Calma - A Division of Prime Computers Regarding the CD and the DAT format (as well as DASH, Pro-Digi, and others, but *not* DCC) check the book by John Watkinson: The Art of Digital Audio (2nd revised reprint) Also Ken Pohlmann has a book called "Principles of Digital Audio" (2nd ed. has more on DAT) but it's less technical than John Watkinson's. ---------------------------------------------------------------------------- >From: SDT1@NS.CC.LEHIGH.EDU (Steven D. Toteda) I just finished reading an article on the subject in the June 1st-7th Economist (p. 63, 1991). It is very informative (as the Economist tends to be). Not very technical but insightful. Call the author. Good luck. ---------------------------------------------------------------------------- >From: alioshin@unix.sri.com (Paul Alioshin) Organization: SRI International, Menlo Park, CA First off, I'll assume you've gone through the AES Journals. (The Journal of the Audio Engineering Society.) _The Art of Digtal Audio_ by John Watkinson is a very good book. The headline article in the May 1991 _Stereophile_ is about compression schemes and how horrible a thing they are. (Not technical.) I was involved in a Digital Audio Broadcast system design that we showed at the NAB a month, or so ago. We, of course, used a compression scheme. The Musicam Compression algorithm is published and you could probably find it. There's a company in New Jersy called CCS that built musicam for us. They may be able to help. ----------------------------------------------------------------------------- >From: kls30@duts.ccc.amdahl.com (Kent L Shephard) Organization: Amdahl Corporation, Sunnyvale CA Check the IEEE Signal Processing Society - ASSP ther journals have some good info. You should also try journals from the AES - Audio Engr. Society and any put out by the EBU - European Broadcast Union. ---------------------------------------------------------------------------- >From: tfb@serc.cis.ufl.edu (Fred Burch) Organization: UF CIS Dept. An excellent, non-technical reference for the older digital techniques is Watkinson, John. The art of digital audio / John Watkinson. -- London ; Boston : Focal Press, 1988. 489 p. : ill. ; 25 cm. Includes bibliographies and index. ISBN 0-240-51270-7 : SUBJECT HEADINGS (Library of Congress; use s= ): Sound--Recording and reproducing--Digital techniques. -------------------------------------------------------------------------- >From: ted@dgbt.doc.ca (Ted Grusec) Subject: Re: What's up with RDAT? Posted: Mon Apr 29 07:46:27 1991 For an excellent overview of DCC (Philips), including elucidation of the PASC coding scheme, economics, subjective listener evaluation, etc., see the series of short articles in the April 91 Stereophile. I am doing subjective evaluations in experiments with a similar coding scheme (Musicam) in the digital audio broadcasting domain, and, I must say, the results are very impressive. Most listeners cannot tell the difference between an original CD and the PASC encoded version, even though the latter reduces the bit rate by a factor of 6! -- | Michael Harlow | u855203@probitas.cs.utas.edu.au (+1000) | GPO Box 1201, | +61 02 202957 (002 283562 ah) | Hobart, 7001 | Computer Science Department, University of Tasmania | Tasmania, Australia | GPO Box 252C, Hobart 7001. Tasmania, Australia.