(starting a new thread) Themis wrote: > In any case, it would have been much better if in the digital audio > protocol the clock was explicitly indicated by the A/D (in the data) > and stored with it. This way, transport wouldn't have to add its own > jitter. > > Now, whatever is done, we can't go back.
Er, SPDIF is done, but its not the end of the world. SP/DIF was designed by Sony and Philips defined it as a inexpensive consumer interface. And while AES was aimed at the studio recording market (i.e. professionals) it is not designed to be better. Other than using XLR connectors and not having the "do not copy" bit in the stream, its exactly the same spec. All of the problems with timing and clocks could be trivially fixed by adding one extra wire to the cable, and sending clock. (and a bit of signaling protocols to allow each end to argue over who is in charge of the clock). This would not prevent the cable from adding jitter, but you wouldn't care, as any delay in the clock will also impact the data signal. In time, if there is sufficient demand, a new standard could evolve. As a wise man said: Standards are great, there are so many of them to chose from -- Pat Farrell http://www.pfarrell.com/ _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
