Music playback lags or stops during Roon app navigation (ref#HPRBVR)

What app are you having the slowness issue with?

· Roon

What kind of performance/speed issue are you experiencing?

· Other

Please try to reboot your Roon Server

· Yes, rebooting helps, but the issue returns after some time

Please try to reboot your networking gear (Router/Switches/etc.)

· No, the issue is still the same even after a reboot

Is there any change in behavior if you try to navigate to Roon Settings -> Library and set both Background and On-Demand Audio Analysis to Throttled or Off?

· No, the issue is still the same

Does the issue happen on multiple Roon Remotes (controllers) or just one?

· Issue happens on multiple remotes

Router Domain Name System (DNS) change

· I don't know how to do this

What is the operating system of your Roon Server host machine?

· Nucleus

Which model Nucleus do you have?

· Nucleus One

Timestamp of issue occurrences

· For example today 3 May, Time Time 20:47 and 21:01 (UTC +2, CEST)

Describe the issue

Listening to music is fine as long as i don´t touch roon app after starting music. If I change anything, i.e go to home, search for music, visit my library etc the music stops/lags and comes back after a some time (10-15sek). Some times the music stops and a message appears ”An audio file is loading slowly. This may indicate a performance or hardware problem.” My network is connected to fibre and I have no performance issues with any other streaming services. Speed is typically about 500Mbps and my Nucleus is connected to the router by cable.

Describe your network setup

ISP is Ownit.se Fibrenetwork to my hose by Lunet.se.onnected by cable to my Amplifi Alien Router and from Amplifi to my Nucleus by cable.

Hi @jorgen,

Thanks for writing in and sharing your report, as well as a timestamp! We were able to review a fresh diagnostic report from your Nucleus, and saw:

  1. You navigated to an album page (Pink Floyd - Echoes) while music was playing
  2. This triggered a burst of metadata/image requests to Roon's servers (artist bios, similar albums, reviews)
  3. These requests took 5–9 seconds to complete — far longer than normal
  4. While the Nucleus CPU/thread was busy handling this, audio dropouts began:
    • [GOLD NOTE USB-DAC] GOT Dropout — repeated multiple times
    • Roon logged: "Too many dropouts (>3s dropped out in the last 30s). Killing stream"
    • Then: "Track Stopped Due to Slow Media"
The same pattern repeated at 21:01 — navigating the app triggered heavy UI/metadata work, dropouts accumulated, stream killed.

The logs show DSP upsampling from 16/44 FLAC to 32/384 (a ~7–8× upsample), which is CPU-intensive. Add heavy UI browsing, and the machine is overloaded.

Some next steps in troubleshooting:

1. Reduce DSP load: the DSP chain shows upsampling to 384kHz with a 7–8× multiplier. Go to Settings → Audio → [Gold Note zone] → DSP Engine and try:

  • Lower the target sample rate (e.g., max 192kHz instead of 384kHz)
  • Or temporarily disable the parametric EQ to isolate whether DSP is contributing
2. Increase the RAAT buffer size: The logs show buffer_size:10 in the stream commands. In Settings → Audio → [Gold Note USB-DAC] → Device Setup, look for Resync Delay or buffer setting and try increasing it. A larger buffer gives the audio pipeline more margin before dropout occurs.

If none of the above help, try completely disabling DSP altogether and see how things perform. Thank you! :folded_hands:

Hi Benjamin!

Thank you for your answer it did help, fore a while …

I lovered the sample rate to 192kHz and increased the buffersize to 100ms, and that worked fine. But today i was listening and without doing anything on the Roon app (Roon app in background, I was reading the news) the music suddenly stopped (time 19:09) and was loading slow. And at 21:51 I started the Roon app again but it was really slow to start up.(All timestamps UTC +2, CEST)
Another thing I have noticed is that when I turn off Nucleus and then restart it works like when it was new. But after playing music it seems to gradually choke up, and after a day or two it’s like I have described before, slow.

Has the Nucleus to little memory and weak CPU, in relationship to the amount of pictures and data that must download an process while also playing music??

Regards

/ Jörgen