Been doing various burn in and using the Hugo to help in process. Basically have hugo running out of the RCAs and one or both headphone jacks. On the input side, I was doing usb from jriver/win server or coaxial from wadia/ipad. Here is the weird thing. When I was running a tone generator from the wadia/.ipad to coaxial I never had any issues. Now when I play random music from either the wadia/ipad to coaxial or jriver/win to usb, the chord will stop playing after a while. I'm not sure how long before it actually happens but within 4-6 hours. If I hit stop and play again, the hugo works like it never had an issue. Since it is happening from two different sources and interfaces, I assume the issue lies somewhere with the hugo, but why only music? I guess not really a huge issue until I wanted to so 24/7 burn in or long listening session with no interaction. Any ideas/suggestions/or anyone else run into this?
I think I have had music "paused" for a second or two playing via USB from my PC. It happened a few times I think but I just chalked these up to computer I/O lag or some background processes overloading the CPU. It would resume itself, or if I stop/play again. Never really bothered me and won't really recall without seeing you mentioning it here. A corroboratory observation is that I never had this "pausing" with using my DAPs as source. So I just simply tag it under "weird things your PC do once in a while".
Re your case of music vs tone generator, as you mentioned you weren't sure how long it was playing music before it happened but about 4-6 hours, I'd venture to say it's not related to tone vs music as you probably won't be listening to tone for HOURS? (or I could be wrong!? afterall this is HeadFi... )