Are you using unusual software for audio or video playback or special audio utilities? Have you modified any output detail settings?
The Audio Midi Setup utility allows sample rate selection for audio outputs and by default the ASD speakers are set to 48kHz there (macOS will automatically resample signals as needed). This should also determine the actual audio data rate that's sent to the ASD.
If it happens so regularly to you, does the issue behave differently if you select one of the other sampling frequencies there?
If your specific circumstances make the issue happen frequently across two different ASDs and even after the update the issue seems to be related more to your Mac, possibly to your software setup in some way, and it may be good for Apple to know about it.
I'm not using the ASD speakers normally (I've got separate speakers for that) but my suspicion is that it could be a slight data rate divergence issue which should normally be caught and resolved by the firmware or by macOS (either is possible) but isn't always resolved correctly for some reason, so sound data buffers run over or under at some point, causing glitches or a complete stop. Or some other protocol implementation bug somewhere.
Thanks for the info, I’ll have to look into this. When audio stops working, I can’t change audio output or anything related so I’d have to switch and use a different frequency before it occurs.
I’m not using anything unusual and have been submitting Capture Data logs for the past few months, but the Tier 2 specialist I was working with apparently never submitted anything to engineering.
Ruling out that it’s not my Mac Studio computer, I’ve erased and reinstalled macOS and didn't import anything. It can even happen in Safe Mode when only using Safari.
When this issue occurs, the following things can be observed every time:
- Audio (and associated video) will not play (if I try to open Music or TV apps they’ll just perpetually bounce in the dock). Interestingly enough, video files with no audio track play perfectly fine.
- Streaming video sites (YouTube, Twitch, etc) will stop working. As a matter of fact, pages in Safari will just intermittently reload.
- Cannot switch audio out to another source (different speakers, Airpods, etc.)
- About this Mac, Restart, Shutdown, Volume and Brightness control are also unresponsive.
- If you try to screenshot (shift + command + 3), the sound effect and little preview on the bottom right hand corner will not occur.
As soon as you unplug the Studio Display from power or Thunderbolt 4, EVERY SINGLE sound that wasn’t working (notification pings, screenshot sound effect, etc.) will play in succession from the internal speaker of my Mac Studio computer. When the Display is plugged back in, everything I tried to open (About this Mac window, video files, etc) are now present like nothing happened.
After dealing with this issue for at least once a day for the past 3 months, there's no real way to gauge when it can occur but to me I think it's happened more often after waking up the Display or if I had something playing in the background (maybe paused) and the screensaver kicks in.
Unrelated to the audio issue, I've also noticed on more than one occasion that if I try to access Display settings under System Preferences that will just beachball and not load. And a few times when I went to System Report to find the Display's serial number, that and the Display Firmware Version information was not present. I had to unplug the Display and plug it back in for it to show.
Finally, I should note that as long as I set the audio output to something other than "Studio Display Speakers" I can use the Studio Display fine without issue.