| 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 have a Sony CDP-302 that has a Subcode Output. a) What is it for, anyway? b) Do I need a separate piece of hardware to make use of it? c) Will I be able to read CD-ROM discs with it (or is that something else entirely)? Mike
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 195.1 | PISA::LIONEL | Sun Oct 13 1985 09:45 | 9 | ||
It is for "future use". The most likely use is the display of pictures or graphics stored along with the audio on the disc - there is space reserved for this purpose. You need a separate piece of hardware for this; Sony has shown such a beast. There is currently no software that has the subcode information, though apparently a new "interactive" CD from the Firesign Theatre (!) will be the first. You will not be able to read CD-ROMs with this, as such alwo requires computer control of the reader. Steve | |||||
| 195.2 | EUCLID::PAULHUS | Thu Oct 17 1985 15:28 | 3 | ||
There's a good article on subcode and it's uses in the latest issue of Digital Audio (came in mail 10/15). Enjoy. (learn, even)OP | |||||
| 195.3 | Yes, there is a meaning | SKYLRK::WALSH | Mon Jul 27 1987 21:14 | 22 | |
Call a SONY repair shop and get the Service Manual for $8 for the
CPD-302. It will at least detail the pinouts of the subcode signal.
Some R&D Engineers at Schlumberger/Fairchild in Palo Alto connected
the subcode signal to a VCR as a home project and successfully
digitally recorded the selection onto videotape.
Here's the interesting part:
They read the data back in by starting the VCR & hitting the play
button on button on the Cpd-302 with a disc inserted.
It produced analog sound for the left & right channels but the sync
signals coming in kept telling the CPD302 that it wasn't spinnning
the disc fast enough. And so the little CD player compensated by
altering the rotational speed of the disc.
The bit stream of the digital signal is emtted serially from one
of the pins of the subcode out signal as you will see from the
service manual.
R. Walsh
Santa Clara, Calif.
DTN 521-4694
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