Hi. I am using Soundtrap (online DAW) to teach my music production class remotely. While using any music source in my computer like Spotify, iTunes, etc., I do not have the ability to choose outputs in the AR12USB. I use the AR12USB as my audio interface when I use Logic, or ProTools and have no problem choosing outputs.
How can I choose outputs while using everything else? The Sound page in System Preferences shows the AR12USB connected, but says the device has no output controls.
I am using a 2018 MAC Mini, Mojave 10.4.6, StudioLive AR12USB v2.22