Hopefully multi-track recording will be added to simple mode.
In short, you want to use CQP or CRF (not a bitrate-target method), with a quality target in the 16-22 range.
Alternately, you can install the AudioWriter Filter and apply it to each of your audio sources to write out each audio track to a separate audio file, then re-sync them in your editing software:
Use cases You stream something with Noise gate and Compressor filters but you want to keep the original audio for postproduction with better quality tools Usage Download a zip from https://github.com/ujifgc/obs-audio-writer-filter/releases...
obsproject.com
Less elegant than having them all rolled into the recording itself, but also allows for more than six audio tracks, and allows using Simple mode for recording. :)