OBS Advanced output mode unlocks every encoder setting that the Simple output mode hides behind defaults. The Simple mode is fine for first-time streamers learning the software. The Advanced mode is required for any streamer running a calibrated production setup.

The switch: open OBS settings, output, change "Output Mode" from Simple to Advanced at the top of the panel. The encoder settings expand to show keyframe interval, B-frames, profile, tuning, preset, and rate-control options that Simple mode obscures.

The implementation discipline: take screenshots of your Simple-mode settings before switching. The switch carries some defaults that may differ from your prior config, and the screenshot is your reference for restoring known-good values.

Once in Advanced mode, every other lesson in this module applies cleanly. Set the encoder, set CBR, set the bitrate, set the keyframe to 2 seconds, set the preset, set the profile to high, and save. The Advanced mode is the operating environment every working streamer eventually moves to. Make the move now.