What export settings should I set for good quality and small size?

Question

YouTube

I recorded a video on OBS about 90 minutes long. 1080p and 60 fps ~630 MB. I'm trying to edit the video (cut small pieces). But the problem is that it doesn't work, after editing, to pick up similar file sizes. I tried several programs: Adobe Premiere, Sony Vegas, OpenShot, Movavi Video Editor 15 and a couple of others. But there is only one problem: the result is just a huge video file. If I stop at Premiere, I chose the h.264 YouTube 1080p Full HD preset - it shows 11 gigs, the Facebook preset - 8 gigs, the twitter preset (the best option) - 1.5 gigs, which is also too much. I tried to change other settings, but apparently did not find the right ones. Tried using the Match Source option, without much success. Tell me what parameters you need to set in order to get good-excellent quality and acceptable video size (600-700MB)?

Answer 1

The problem with variable (VBR) and constant (CBR) bitrate is that you cannot guess which one you need: sometimes you can get by with 2000 without quality loss, sometimes 20000 is not enough.
You need to use CRF, but it is not available in professional software, and indeed there are few places. There are two options: export the file without compression or with minimal compression, and then compress it with ffmpeg or handbrake, or use the voukoder plugin for Premiere/Media Encoder.
CRF 20-26 - lower value gives better quality and more volume.
Resolution and frame rate as the source.
A quality preset (again in handbrake/ffmpeg) as slow as possible gives the best quality. I usually use slower or slow.