Comment Re:Do people still remember "oxygen-free copper"? (Score 1) 61
Sent through a physical cable you either receive the original data or not.
Once you are receiving the original data - either through clean transmission, or because error correction has fixed any transmission errors, it doesn't get any better.
At the relatively low bandwidth needed for audio data, there are many protocols and physical carriers capable of transmitting the data and ensuring a perfect copy is received even over low quality cabling.