Thanks for your attention on this matter.
I’m using a mini PC running Windows 10 Home (this model https://www.amazon.es/gp/product/B073P87QJ7/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1) as my “Roon source”. It has Roon server installed, that I control using other PCs on the house.
This mini PC is connected via a USB 2 port to the mentioned Pro-Ject DAC that is indeed running with the latest (v. 2.12) firmware edition.
I should also mention that Windows is updated to v. 1709
The dropouts appear to be random, although a lot more frequent on the first thirty or forty seconds of each track.
Also, some tracks appear to be “worse” than others. For instance, in Hotel California, by Eagles, the dropouts disappeared after the first 30 seconds:
On the other hand, the first track of Crisis, by Mike Oldfield, for example, drops out a lot during play (the screenshot below was taken after several dropouts. It then got better, only to dropout again every couple of minutes or so.)
The ASIO driver I’m using is provided by Pro-Ject
Also, I have all DSP settings disabled except for this one (that usually don’t affect MQA tracks):
Turning completely off the DSP effects does not seem to make any difference. The same goes for any tweaking of the DAC’s buffer settings – either on Roon or on the DAC’s driver.
There is no problem with Roon andor the DAC playing “normal” PCM files, whichever its resolution. Also, the above mentioned upsampling works flawlessly on this computer.
I also have some DSD 64 music that plays normally. One example:
I really hope you can understand what is happening, since (as I said in a previous post) the dropouts do not happen with the Tidal desktop app (as long as Roon Server is not running in the background).
If you need any more information that you think I can provide don’t hesitate to ask.