Ubuntu 20.04.3 LTS
8 CPU x 32GB virtual machine in ESXi 6.7 Update 2 and later
macOS Monterey 12.0.1
iMac Pro (2017)
2.3 GHz 18-Core Intel Xeon W
Roon Core → 10G Base-SR → Ubiquity USW-Aggregation → 10 Gbe → iMac Pro
My audio out is connected to a 1st Generation PS Audio Sprout via USB.
Listed as “XMOS USB 2.0 Audio Out” in Sound preference panel
Format: 96,000 Hz 2 ch 24 bit integer in “Audio MIDI Setup”
Since macOS 10.15: Catalina, I have experienced problems where I will loose audio output on my machine. Roon is always running, and my audio output is set to “CoreAudio” when this happens. The sound preference pane sometimes can’t be opened, when it can (after a delay) it only shows “remote” audio sources through Bluetooth and Airplay.
I’ve filed multiple bug reports with Apple, and the problem eventually stops happening for a while. This is the first time I’ve experienced it with macOS Monterey, so I thought I would start here.
The only way to resolve the issue is to reboot. I have only experienced this problem when using Roon.