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In Reply to: RE: An insolent provocation .... if a usb dac is very well design (and built) the pc quality should not matter posted by Thorsten on December 10, 2014 at 04:37:07
"Common digital isolators in the Digital Audio section can easily add several nanoseconds of jitter, so they are rare. "
Not that rare, and they don't need to add any time delay at all. An experienced digital designer can do it.
However, even with complete galvanic isolation, the power supply on the PC and the playback software still matters. Ripper software still matters. Don't ask me why...
Steve N.
Follow Ups:
Steve,
All the isolators for digital signals I have encountered are subject to delays, delay skew between channels and most crucially delay skew on each transmitted bit. This is due to their fundamental principle of using a high frequency carrier and some kind of magnetic or capacitive coupling. Even optical systems are subject to some delay and skew.
But good to you if you have something that isolates (even at RF) and is not subject to the usual limitations.I hope you use it extensively to gain a competitive advantage.
Ciao T
At 20 bits, you are on the verge of dynamic range covering fly-farts-at-20-feet to untolerable pain. Really, what more could we need?
Certainly isolators insert delay, but so do flip-flops and clock periods are delays too....
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