Post by misterc on Dec 1, 2020 17:13:50 GMT
USB is used purely as it is a universal interface that is fitted to pretty much billions of devices it simple and easy to use (I know a............ another story that one ) it is the least desirable method or moving audio data (PCM) however the fad is to compact that data to a DoP format (DSD over PCM) and it can generate up-to 32bits/384Khz (Cue Macca and the zero point for audio information over 20Khz)
Even with galvanic isolation dedicated 5Vdc separate supply to the decoding and receiving chipset it really isn't what I would call 'industry standard which is AES 67' ever wondered why Innous produce the Phoenix usb re-clocking device?
Hell we even retail a similar device that does sell very well in the UK due it rather decent USB data realignment properties.
The best method is dual left/right AES/EBU followed by SPDIF, Toslink and AT&T glass optic have one big advantage and one big disadvantage (yes you can even get upgraded 'orange glass optic cables and they make zero difference )
You have to convert the electrical signal to light and vice versa at the other end bang goes you benefits while in the light pipe theoretically short of a timed radiation pulse the PCM signal should be pretty impervious to all of the 'crap' flying around in an audio systems YMMV
Consider a nuc if you wish to do your own thing and use a right angle pcie adapter card with a quality digital audio board.
Save your pennies and look at a nice digital streaming playback transport, yes they are not all made them same.
As you take your steps down this road you are going to find there are some interesting stages along the way to making vinyl sound very ordinary and somewhat unnatural however these are early stages and as we mentioned before you need to experience them for yourself.
Perhaps in the new year I could set up a digital audio playback clinic looking at all aspects of PCM replay and how to iron out those glitches you do not expect