Quote:
Originally Posted by sk3383 
Not trying to deconstruct collective wisdoms. I am not sure exactly what I was trying to accomplish with that post, I think I was trying to enlighten members maybe, possibly help them look at things from another perspective ("outside of the box" so to speak)
Lower jitter -> better sonics = TRUTH. But having the lowest jitter measurements is not the end game.
Its all in the implementation and design, Device(A) can post the best measured jitter but not sound half as good as Device(B) that has a much worst measured jitter.
Reports in this thread are so far only consistent that Audio-GD dacs hugely benefit (from digital transport improvements in general and) specifically from Audiophilleo, but nobody says this must be so for devices from other dac vendors. Especially the ones like Anedio or Antelope with emphasis on de-jittering. But then it does not matter also for Parasound, my old Lavry DA-10 was nearly transport resistant, too.
Nonetheless, this discussion is touching several important points.
1) Should the measurements of digital transports be somehow standardized and should their makers publish selected jitter specs? Because the very good point you are making is that various jitter numbers may indeed be confusing or simply belong to marketing (dis)information. Anedio seems to say exactly this (quoting): We have intentionally left our jitter specification blank [..] to measure it reliably down to the picosecond level remains exceedingly difficult, and even if it could be done, a single number is inadequate. While I understand that single number is inadequate because there are several jitter types and consequently measurement methods, as an end user I would like to see some objective facts and benchmarks. It's frustrating to choose from dozens of usb->spdif devices that all claim "low jitter". HiFace Evo lists this as the first feature in their product description and what? it does not even come close to Audiophilleo. Knowing some consistently measured numbers would greatly help.
2) What other parameters of the SPDIF signal potentially affect sound and how to measure them. Noise that does not qualify as any of the several jitter types? Perhaps amplitude or electric properties like impedance?
