Modify Opus bitrate without Jigasi

I’ve seen a few posts hanging around about how to force WebRTC to user a higher audio bitrate.

I’ve already done the stereo thing and turning off audio processing. Things are better but apparently it can go even further.

All references I’ve seen are for Jagasi which I’m not sure. So, how, do modify the settings to force the audio bitrate to be higher?

Also very interested in this - let me know if you find any details.