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Article explaining how CD players work

My basic understanding is that there are three elements to how CD players work:

1. The transport "reads" the digital information, extracting it from the CD

2. The DAC translates the digital information into analog form

3. The analog circuitry turns the analog signal into a line-level output

Can someone recommend an article that explains this in more detail? What I am most interested in is understanding the various design issues that account for why one CD player can be so much more expensive than another.
jimjoyce25

Showing 1 response by eldartford

eldartford
4,262 posts
 
Elizabeth..."Educated guessing" is not an error correcting code. The recovered data, that may contain errors, includes redundant data such that the correct original bits are determined. I won't try to explain it. Google "CRC code".

Digital data transmission and storage today almost always involves error correcting coding. It is NOT a band aid for hardware deficiencies that cause errors. By using an error correcting code the transmission bandwidth can be increased to the point where some acceptable frequency of errors, depending on the degree of redundancy, occurs. Although some bandwidth is lost to the redundant data, the overall result is beneficial.
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