gobikey Wrote: > is there someone that knows digital audio transmission protocols that > can comment? does S/PDIF use error correction? if not, i would > completely understand the need for a high quality cable. > > i would also like to hear about anyone's experience with digital cable > upgrades. As someone else has already pointed out, SPDIF does not use error correction. As a one-way protocol (ie. the receiver has no way of talking to the sender), you can't do resends a la TCP/IP. In that sense it's more like UDP than TCP.
You might argue that the designers of the protocol should have included redundancy to assist in error correction. But as it happens SPDIF is an amazingly robust protocol. I've sent it over 50 feet of random thin COAX I had lying around (certainly not 75 ohm), terminated in cheap phono plugs (also certainly not 75 ohm) and got bit-perfect data transfers. Of course I'm sure that the jitter would have suffered were it feeding a DAC, but it wasn't so that's moot. The only reason you might want to use good quality SPDIF connectors is to protect the signal from noise induced jitter, and that's only necessary if the receiving DAC doesn't reclock well. If you've got something like a Benchmark DAC1, you could probably use wet string. -- cliveb ------------------------------------------------------------------------ cliveb's Profile: http://forums.slimdevices.com/member.php?userid=348 View this thread: http://forums.slimdevices.com/showthread.php?t=21415 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
