km@emory.uucp (Ken Mandelberg) (10/15/88)
Can anyone give me a reference for both the format of a compact disc and the error correction algorithm? -- Ken Mandelberg | km@mathcs.emory.edu PREFERRED Emory University | {decvax,gatech}!emory!km UUCP Dept of Math and CS | km@emory NON-DOMAIN BITNET Atlanta, GA 30322 | Phone: (404) 727-7963
brian@ucsd.EDU (Brian Kantor) (10/16/88)
A truly excellent article on the CD format, including a good discussion of the digital coding methods used is Peek, J.B.H, "Communications Aspecs of the Compact Disk Digital Audio System" in IEEE Communications Magazine, Feb 1985. Vol 23 No 2 I recommend that you visit your local college or university's technical library and make yourself a copy of this article. In addition, our library catalog suggests some of the following may be helpful: Brewer, Bryan, 1946- The compact disc book : a complete guide to the digital sound of the future / Bryan Brewer and Edd Key. 1st ed. San Diego : Harcourt Brace Jovanovich, c1987. Clifford, Martin, 1910- The complete compact disc player / Martin Clifford. Englewood Cliffs, N.J. : Prentice-Hall, c1987. Compact disc-interactive : a designer's overview / edited by Philips International. New York : McGraw-Hill, c1988. Lenk, John D. Complete guide to compact disc (CD) player troubleshooting and repair / John D. Lenk. Englewood Cliffs, N.J. : Prentice-Hall, c1986. McComb, Gordon. Compact disc player maintenance and repair / Gordon McComb and John Cook. 1st ed. Blue Ridge Summit, PA : Tab Books, c1987. Myers, Patti. Publishing with CD-ROM : a guide to compact disc optical storage technologies for providers of publishing services / Patti Myers. Westport, CT : Meckler Publishing Corp., 1986. Brian Kantor UC San Diego
keithd@cadovax.UUCP (Keith Doyle) (10/26/88)
In article <1185@ucsd.EDU> brian@ucsd.edu (Brian Kantor) writes: >In addition, our library catalog suggests some of the following may be >helpful: (many good books on CD deleted...) Has anyone figured out how to make sense out of the digital output of a CD player? Are specs on the format available? Any of the books mentioned by the above referenced article cover the subject? Lessee... If it's serial, it must be at least 44.1*16bits = 705.6 K baud minimum. I would assume that at that rate it is synchronous (clock included). How long do you think it would take to hack a complete interface directly to the DSP on a NeXT machine? Keith Doyle # {ucbvax,decvax}!trwrb!cadovax!keithd Contel Business Systems 213-323-8170
tbb@drutx.ATT.COM (Tom Barber) (10/27/88)
In article <2296@cadovax.UUCP>, keithd@cadovax.UUCP (Keith Doyle) writes: > > Lessee... If it's serial, it must be at least 44.1*16bits = 705.6 K baud To begin with, there are two channels, each delivering 16 bit samples at 44+ KHz. In addition, your use of the term "baud" is not correct. The Baud rate is the rate of state transitions. This is the same as bps only if each state transition (shift in phase/frequency/amplitude) conveys only a single bit. If, for example, each state transition carries two bits (which would require four distinct state values), then the Baud rate is 1/2 the bps. > Keith Doyle > # {ucbvax,decvax}!trwrb!cadovax!keithd Contel Business Systems 213-323-8170 Tom Barber