Create a dedicated virtual audio output device #
In CASTER Live, each audio track can be directed to OBS with a dedicated audio device.
To do that, all you need to do is to enter the track’s “advanced mode” and enable the “Direct to” switch.
This will automatically create a dedicated virtual audio device in your Mac and will give it the source track name.
Assign Input Source In OBS #
Now, go to OBS and select this device as your input source.