SWB Audo App must be running
Is the app running? The app has to be running for that message to not play.
Valid apps are:
- SWB Audio App (see below)
- iShowU Instant
- iShowU Studio 2
To illustate using SWB Audio App; you want to see a little audio symbol in the menu bar. This means the app is running. It doesn't have to be green - that's just showing that Preview is active.
If you're only wanting the sound driver (and not using iShowU Instant to record video), there is a standalone driver: https://shinywhitebox.com/swb-audio-app. It's more out the way, sitting just in the menu bar without needing a desktop app to be open/running.