How do I send audio to headphone jack? is it possible or do I need blackhole?
thanks
Just use splitter cables on your main output and grab the signal for OBS there.
Traktor only can handle one audio interface, I expect you use a controller or USB audio interface in Traktor. The headphone jack on your MacBook has its own onboard interface. You can try to build an aggregate interface with Audio MIDI setup in macOS and select this in Traktor. But this doesn‘t work well in all cases.
