Q: Which OBS settings will most significantly affect file size?

According to some tests I've done, if you are the CBR Rate Control, the video bitrate settings will most significantly impact the file size, with a high video bitrate corresponding to a larger file. However, changing the Rate Control to CQP will significantly increase the file size up to five times more than CBR. So, only use the CQP rate control if you have a lot of storage space.

Question 1

How do I add audio and video sources?

Accepted Answer

On the main screen of OBS Studios, click on the '+' icon under Sources to open up a menu. In this menu, you can select different audio and video sources, such as adding a video capture device to record video, display capture for screen recording, audio input and output capture, etc.

Once you have added the different input sources, right-click on the source and go to Properties to add the relevant device, such as your webcam, audio interface, desktop audio or external USB mic, etc.

Question 2

Which OBS settings will most significantly affect file size?

Accepted Answer

According to some tests I've done, if you are the CBR Rate Control, the video bitrate settings will most significantly impact the file size, with a high video bitrate corresponding to a larger file.

However, changing the Rate Control to CQP will significantly increase the file size up to five times more than CBR. So, only use the CQP rate control if you have a lot of storage space.

Software

Best OBS Settings for Recording (Version 29.1) for Gaming PCs

5 Best Text To Speech Software of 2023 for Audio Voiceovers