Quote:
Originally Posted by G8HQP Dave
Error correction means that the data entering the DAC is perfect almost all of the time.
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CIRC error correction will deal with with significant random and burst errors. But it finds it difficult to deal with systematic errors that tend to cause timing skews as a result of mechanical resonances, or any effect that tends to impact on the raw analogue data stream.
Prof Malcolm Hawkesford at the University of Essex has a good demonstration in which he ac couples the servo signals on a CD player, amplifies them, and demonstrates that they have a distorted version of the analogue audio stream impressed on them. Now this is quite a while ago, and it escapes me whether this was as a result of an electrical coupling mechanism, or an acoustic phenomenon because of the acoustic environment from loudspeakers.
I'll try and find out and report back if I find the information.