Roon Ready v/s USB Audio

[wklie (Peter Lie)]

@Peter_Sabbagh

USB Audio transport sends analogue data

Digital data.

@Peter_Sabbagh

In scenario 2 it seems that Roon is upsampling to 384Khz

No, Roon is not doing it. Your device is doing it as part of its automatic upsampling feature:

Cambridge Audio CXNv2 upsampling everything to 384Khz

As the original poster let me add a few comments (I have also been in dialogue with Cambridge Audio about this). the CXNv2 does upsample everything to 384KHz sample rate for it’s DAC, as someone with many years experience in recording studios and both professional and consumer, I have expressed to Cambridge Audio that I don’t think this is good practise, and that at the very least the upsampling should be a whole integer of the sample rate, so yes, upsample 48Khz or 96Khz PCM to 384k, but 44.1…

@Peter_Sabbagh

in scenario 1 USB audio it is the Cambridge Audio DAC that upsamples the analogue data received.

Digital data.

By the way, if you have not set your device to invert phase on purpose (for XLR connection to a pin 2 cold device such as Accuphase or Luxman), I suggest you to correct this.