I live in Sweden, so I don’t have to travel so far to get my Nobel prize. 
But I doubt that I can get a Nobel prize for believing what I hear.
To end this discussion we leave it to the conclusion that you believe in science and measurements and I believe in what I hear and everybody is happy.
Thanks. The path does look clean.
For believing, no. But for demonstrating that there is a difference, rather than believing in it, that’s anotther matter. It would be big.
Might as well, these discussions rarely convince anyone of anything. You can’t really have a discussion with some objective repeatable facts vs. beliefs…
Forgive my ignorance, but where is the ‘Roon’ core programme residing? On a computer or Roon Nucleus?
This has got to have an effect on the variations in sound quality you are hearing?
In the end, just enjoy the music and forget about all the figures.
Nope, none whatsoever. (And Nucleus is just an overpriced computer anyway)
So where is Roon residing?
Roon is residing on a computer. Whether it be a laptop, a nas or a nucleus. Depending on that choice of device, your system’s resolution and choice of interconnect, there may be quality differences due to high frequency interference.
Interconnects (unless they are of some super-pricy audiophile brand and do not follow any of the USB specs) have no effect here, though. And the digital data is high frequency noise. It would be very strange if the DAC was rejecting whatever analogue noise is die to data itself, but passing through significantly lower-level “other” noise. Not that one could her anything in MHz range anyway.
Low-frequency noise at high levels would be more of a concern but has generally been solved for many year as well.
I wrote this in another thread here: Roon comparistion and questions. So, I’m in the same mess as other users with Roon here and found no solution, so far. Take it as another confirmation, that Roon is laking SQ vs. direct streaming…