Playback stutters then jumps to new song

I tried to use the help button but it was useless as it directed me to something irrelevant, so here I am posting for support.

After the latest update, sometimes I get a stutter when playing a song and then playback jumps to the next song in a queue. It happens in the first 30 seconds or so of a sing. This happens both for local files and tidal. It’s a little random the behavior (it just happens now and then), but I would say it’s more likely to happen when there is a change in album in the queue.

I’m running my server on a Mac mini M1 with Sequoia, Unify Dream Machine router, and every zone is wired.

It also happened when upgrading to sequoia, but I solved it before the last Roon update following forum advice (turn off private wifi address, etc, etc). But now after Roon update, problems are back

I experience the same thing with a Mac with Apple Silicon Processor (M1 Pro) running on Sequoia.
When I quit the Roon client and immediately start it again it works again for some minutes. I think we should open a ticket for that.

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I moved this thread from the user discussion category, Roon Software Discussion, to Support so that Roon staff sees it

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Same here @Chris_KA It works for a while…

Hi @Ricardo_Damborenea ,

Thanks for reaching out. I’ve activated diagnostics mode for your account and what this does is upload a set of logs to our servers for review. Looking over the log set, I notice the issue happening on your Matrix Element X during playback with a 100% buffer.

This behavior suggests that the tracks is buffered properly on your Roon Server, but something is going wrong between the audio signal from your Mac → Element X. How is the Element X connected in your setup, is it connected directly to your router? What is the model/manufacturer of your networking gear?

Hi @noris

The Matrix is directly connected to the router, which is a Unify Dream Machine.

As I said, this didn’t happen for a long time (years) after upgrading to Mac mini M1 from a Mini 2009. It started with Sequoia, I was able to fix it following forum tips, but came back after latest Roon update.

I’m a little bit short on RAM (8gb) for my +150k track library and I have also noticed more pressure on RAM after the latest couple of Roon upgrades. Nevertheless, I watched RAM pressure when this stutter happened and it was on the “green” zone

Hi @Ricardo_Damborenea,

Diagnostics indicate you’re using a DSP profile for the Matrix with several active stages. Can you reproduce this issue if you disable DSP on this Zone entirely?

On a potentially unrelated note, we do see an Airplay Zone associated with the Matrix that has mDNS errors. Have you tweaked your UniFi router’s mDNS or TTL settings at all? If so, try restoring them to default. This mechanism is not causal for the playback stutters and skips you’ve described, but it is causing your Airplay Matrix Zone to drop off and reappear, most likely.

Hi @Connor I’ll check disabling DSP, but I’ve been using it for years but it’s only now (Sequioa + Roon latest updates) that the problems appear.

As for “mDNS”, I don’t now what it is. It’s “on” in my router. Should I turn it “off”?.
"IoT Autodiscovery (mDNS) is also “on” and on “default” mode. Should I turn it “off”?.

As for TTL, I also don’t know what it is :slight_smile: . I can’t find any setting in my router called that way.

Anyways, rarely use airplay with the Matrix…

Hey @Ricardo_Damborenea,

You’re likely fine if they’re the same default settings they’ve been on previously.

Please provide a date,time, and track playing when and if you reproduce the issue without DSP active. Thank you! :raised_hands:

Hi there
I haven’t had the opportunity yet to do extensive testing with DSP off. I’ll report back when I do.
Meanwhile, OSx Sequoia has been updated, which may (or may not) help solving the issue…

Hi @Ricardo_Damborenea ,

Please let us know once you’ve had a chance to look into this further and any applicable timestamps, thanks!

Sunday Nov 3rd (Spanish Time):

17:41 The cure Alone (Songs of a lost world) No dsp. Takes a while to start (I get a message it’s taking a while), but it starts and plays ok

17:43 I turn on dsp. Skips to next song, then to next, etc. Doesn’t play anything

17:44 turn off dsp. Get message “it might take a while”. Takes about 1min to start playing song. Plays song “Warsong” (same album), no problem

So it’s dsp somehow. But I was able to play w/o any problem with my DSP settings before latest Sequoia and Roon updates for more than a year… And I like to use DSP…

If you think it’s DSP, make and post a screenshot of the signal path when it’s working and when it doesn’t

DSP

No DSP

But again, I was able to use this DSP settings and others w/o issues before Roon update & Sequoia

So key question is why DSP now creates problems after updating Roon and to Sequoia OSX, while until now there were no problems at all using DSP extensively…

…and who is the culprit: Roon or Sequoia (or both)?

This is strange because either there should be no processing speed indicator at all if it’s easily fast enough (like it is in your second screenshot) or there should be a numerical value shown for the multiplicator, like 1.2x or 50x or something:

However, upsampling to 768 Hz is a lot, so maybe it’s a really low performance value and there is a display issue. I’d try with a lower upsampling value at least just to see if it makes a difference.

@Suedkiez sorry I just posted the path w/o actually playing the song.
Currently (I just came back from a trip) I’m unable to play anything at all with DSP. It just skips to the next song w/o playing anything. I restarted the Mini several times and the problem persists. Also turning firewall on and off. So worse than before…

It also seems to be a problem just with the Matrix Audio Element X. Playing with DSP to a Wiim Pro has no problems. Wiim has a Gbe connection and Matrix a 10/100…could that be an issue?

But again, I didn’t have any problem before Roon & OSX Sequoia updates. Mac mini M1 was not breaking a sweat processing wise and RAM pressure were on “green”, sometimes “yellow” area and the Matrix singing happily with DSP…

That’s also strange because it shows the :pause_button: button, indicating that it’s currently playing. In addition, it’s normally impossible to open the signal path if nothing is playing.

Post the signal path that is shown while it is doing this?

Playing to the Matrix with DSP (nothing plays, skips to next song, then next, etc)

Playing to a iFi Mini DSD with similar DSP settings (no problem)

Playing to the Wiim Pro with DSP (no problem)

So it’s DSP and with the Matrix…Again, no issue until updates

Capping upsampling to 192khz seems to solve the issue