You can run your files through ffmpeg and remux them to have the audio in external files.
This cmd extracts only the audio track 2, because in 50000kbs 60fps, the video makes several Giga (and some session goes up to 50G) video extraction it is a bit long (so we come back on No).ffmpeg -y -i "%OBS%\%VIDEO%.mp4" -map 0:2 -vn -c:a copy "%OBS%\%VIDEO%_2.aac"