Looking For Your Opinion

[xxx (Banned - toxicity)]

@Outlaw

CPU Xeon. E5 2620 v2

Really, did you even bother to read the link I first gave you?

No? Let’s try again -

DSD512 - Is this even possible? [yes, just needs more cpu]

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. Thanks.

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 -

@brian

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:

[Outlaw (Jason P)]

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.

[William_Gibson]

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.

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