How to add SWB Audio Capture into Streamlabs OBS (specifically 00m 25s)
SWB Audio App, and the driver, are here:
https://shinywhitebox.com/swb-audio-app
The key is to add an 'Audio Input Capture' into your scenes sources.
Once you choose the Audio Input Capture as a source, you can then drop down the list of inputs, and choose 'SWB Audio Capture'. Done!