December 22, 2017, 2:47am
CPU Xeon. E5 2620 v2
Really, did you even bother to read the link I first gave you?
No? Let’s try again -
I run Roon Server on a 8 core/16 thread Xeon machine. The clock is 2.6Ghz. It has 16GB of RAM.
I have never successfully upsampled to DSD512, although I have a couple DACs capable of that res. I am thinking that clock speed, rather than number of cores, is the limiting factor. Is this true? I upsample to DSD256 without any problems.
Is DSD512 more than just theoretically possible? Is so, some recommendations on capable machines, please.
Bottom line - your Xeon is probably too slow for upsampling to DSD256. I can get DSD256 out my dual Xeon, but DSD512 results in the same symptoms you complain about.
An excerpt from the above link -
In general, the “many slow cores” model like your XEON is not the best for Roon. Almost none of our users have this class of hardware, so putting in a ton of effort/complexity optimizing for horizontal scalability doesn’t make a lot of sense. This isn’t just about audio, either–for UI responsiveness it’s also advantageous to have faster cores rather than more cores.
DSD512 upsampling is stable for me on a NUC5i5–I’ve been running my headphones zone like this since before we released DSP features, and processing speed is pretty healthy:
December 22, 2017, 4:11am
Thanks for everyone’s help.I just don’t understand how last night and all day today upsampling to dsd 256 working perfectly without a hiccup.
Maybe not the case here but in my world that usually means that there has been a software update somewhere that requires a firmware update on a piece of gear. For a thorough look at hi-res audio concepts and the pros and cons of upsampling and such things, The Recording Academy (Grammy folks) have created a document that was created by a committee of folks who very likely have created much of your favorite music along with consultation from many active creators of hi-res music.
As the world's leading society of music professionals, the Recording Academy is dedicated to celebrating, honoring, and sustaining music's past, present, and future.