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Originally posted by 1138
Sounds like your describing voltage trigger levels, In that casem there would be a level for each logical state. I agree, it won't be exactly .2 or .6. But if the signal crosses, say .45 for example, then it registers as .6. .35 would trigger a .2 reading.
Just checking if it's above or below a single voltage level isn't a very good system. What if it's at that voltage level? What do you do then?
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You get an error (well, half-chances to be right)?
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But what I'm saying is that, when the cable can't deliver a signal that distinguishes from "1" or "0", then you're not going to read anything because that's all your trying to read, 1's and 0's.
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Like I just said, it is the cause of error. How could there be any errors if you were always sure of what you received?
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Either do I, but the difference in the player is that going through all of those chips and what not, the singal is rejuvinated by each chip. In fact, one way to fight singal attenuation is to run it through a powered chip because the powered chip will spit it back out on the others side at full voltage.
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Hmmm, good point here. Unless you have bad chips (there you have a difference between cheap/quality players). And unless your cable is broken or absolutely not shielded, nothing worse than slight attenuation can happen, therefore chips in your amp shouldn't have any problem.
Oh, and sorry for our lack of correct EE terminology. I'm just a physicist, my only Signal Processing class was, let's just say it, crap. And I won't go into what we, physicist, think of engineers
(just kidding). But thanks for letting us know we're not that far from the Truth (with a capital T).
Have a nice day!
(I should be studying for my exam tomorrow instead of posting here...)