Hi there,
I had an issue with the audio output in WoW on my Mac mini running MacOS 14.5 and want to share a solution I found after some digging around.
Sound was working normally when I startet the game, but after a seemingly random interval (10-60 minutes) it simply disappeared, leaving just System Default and No Sound Driver in the audio output device settings of the game. System audio itself was still there for other applications, just not in WoW itself. Restarting the game (or the system) brought back sound for a while, but the issue remained. The system logs didn’t show any obvious processes crashing or any error messages out of the ordinary. BT, usually a notorious source of such things, wasn’t the culprit this time either. My speakers are connected by cable anyways. Some online forum posts mentioned the audio drivers installed by Microsoft Teams, which I don’t use. But I recently did install the audio streaming drivers for Steam, and there was a correlation to when the issues in WoW first appeared. So as suggested with the MS drivers I simply removed the ones installed by Steam, and that indeed did resolve the issue for me. I would guess(!) the same is still true for MS teams.
The location of the files are /Library/Audio/Plug-Ins/HAL/SteamStreamingMicrophone.driver and /Library/Audio/Plug-Ins/HAL/SteamStreamingSpeakers.driver. Deleting those will remove the drivers and their functionality. Also, I must advise a reasonable level of caution, since this is an operating system directory and if you’re not careful, you might break things unintentionally.