| Title: | Welcome to the CD Notes Conference |
| Notice: | Welcome to COOKIE |
| Moderator: | COOKIE::ROLLOW |
| Created: | Mon Feb 17 1986 |
| Last Modified: | Fri Mar 03 1989 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 1517 |
| Total number of notes: | 13349 |
I posted an inquiry a month or two ago about where I might find the technical specs for the CD audio format. Someone pointed to another note that gave bit count breakdowns, and another note told how CDs start near the center and track out and change RPM on the way. Does anybody have a pointer to the real story? Bits per millimeter, rotation speeds, subcodes, etc? Are times computed in players or tracked as the disc plays? How do indexing and track addressing work? Where is the disc id? What is/are the error correcting schemes? just for intellectual curiosity.... - tom]
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 953.1 | HFN&RR has what you need! | STKHLM::LIDEN | G�sta Lid�n, SSGH Stockholm/Sweden | Wed Nov 04 1987 16:29 | 20 |
There was a very informative series this past winter/spring in the English mag. HI-FI News & Record Review. Many of your questions were dealt with in a rather more technical way than what is usual for "easy reading" Hi-Fi publications. For example, the February '87 issue deals with the error correction used for CDs (Solomon Reed code). March covers D/A converters, April explains sub-codes (here's where the time information is kept, number of tracks on the disc, an index at the beginning of the disc telling the absolute playing time where all tracks start, at least one block/100 must have the catalog number in its subcode, etc). The articles are all written by John Watkinson. I don't have the issues predating February, but I know there were other articles on CD before Feb. by the same author. Look them up if you can! - GL - | |||||
| 953.2 | Scientific American article | SKYLRK::WALSH | Robert E. Walsh | Wed Nov 11 1987 18:54 | 5 |
Scientific American had an article in 1986 explaining the format
of CDs. Check out SciAm indices for topics & back issues.
Bob Walsh
Santa Clara, Calif.
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