Video Quality Loss with Advanced Output Settings

[vlanthie]

Hello,

*this is for recording only, I'm not streaming*

in the Settings/Output tab I switched the output mode to "Advanced" in order to be able to record multiple audio tracks.
The audio works fine, but the video quality is dramatically worse. I can't see anything different in the "recording" tab between the simple and advanced modes: same encoder, same bitrate; the only thing that I changed was to check the boxes for multiple audio tracks.

Here are the logs and screenshots:

1) output mode "simple", video quality is fine (but no multiple audio tracks of course)

https://obsproject.com/logs/quJEycveFAVa967n

2) output mode "advanced" with multiple audio tracks, terrible video quality (not skipping frames, just looking horrible

https://obsproject.com/logs/PT8MOTGAnx2sl9jj

3) output mode "simple" again, video quality back to normal

https://obsproject.com/logs/zrZ5TSbZtM18k-_e

I'm sorry if I'm missing something obvious.
Thank you.

 

[koala]

In the encoder settings, use CQP as rate control, not CBR. Use a CQ parameter of 15-25, where lower value is higher quality. You used the default CBR with the default bitrate of 2500, which is way too low even for streaming.

 

[vlanthie]

Thank you very much!