My output sound selection keeps changing
I have a new 16" M1 Max MacBook Pro. I'm running Monterey 12.3
I've got three possible sound output choices:
- MacBook Pro speakers
- LED Cinema Display speakers
- Apogee Quartet audio interface.
I'm really wanting to use the Quartet, but this problem affects even the LED Cinema speakers. Here's what's happening:
If I pick either the LED Cinema or the Quartet as my output sound choice (in the System Preferences dialog), everything works fine for a minute or so. Then my selected output choice disappears from the System Preferences dialog and I temporarily hear through the laptop speakers for a second or two. Then it switches back. This continually cycles and is most irritating.
How do I fix it?
MacBook Pro 16″, macOS 12.3