Some numbers are "Imaginary". SQRT(-1).
Half the information on CDs is analogue
I would like to argue that one of the reasons that some transports sound significantly better than others is because much of the information on a given CD is actually analogue (analog) information.
An excellent transport does not just read digital information: 1s and 0s (offs and ons); it must be sensitive enough to pick up the other information that has been stored as a physical property of the CD medium. This 'physical' information, like the tiny bumps in the groove of a vinyl record, is analogue information.
Before I say more I'd like to hear what others think.
An excellent transport does not just read digital information: 1s and 0s (offs and ons); it must be sensitive enough to pick up the other information that has been stored as a physical property of the CD medium. This 'physical' information, like the tiny bumps in the groove of a vinyl record, is analogue information.
Before I say more I'd like to hear what others think.
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- 81 posts total
Sdatch, I have found this book very useful. Principles of Digital Audio, fifth edition by Ken C. Pohlmann. McGraw-Hill. I got it from the library. (It is $60 at Amazon.) It covers not only CD, but DVD, DVD-A, SACD, MP3 and a lot more. There is a good amount on transports as well. It didn't make me an audio engineer but I did learn enough to calibrate my BS meter. |
Sdatch, CD uses Solomon Reed coding to protect data integraty .... http://en.wikipedia.org/wiki/Reed-Solomon_error_correction This means that small analog imperfections have no influence on how the CD sounds, as the data is completely corrected for errors... |
Put your CD player on top of your speaker and listen to how wonderful error correction sounds. Using a mathematical algorithm to fill in gaps and help plot a wave by taking 'best guesses' sounds exactly how you'd expect it sound. http://www.iar-80.com/page54.html |
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