If your headphones are USB then there are no audio pins to split.
I think you can use a program like these https://github.com/audiorouterdev/audio-router
http://www.chevolume.com/
to route the audio from your music playback software to the headphones while still recording video (and audio) from a different source.
If your headphones are USB then there are no audio pins to split.
I think you can use a program like these https://github.com/audiorouterdev/audio-router
http://www.chevolume.com/
to route the audio from your music playback software to the headphones while still recording video (and audio) from a different source.