Logitech C920 OBS Studio
OBS Studio for Linux
If you want to record tutorials on Linux, there’s almost no way around OBS Studio.
OBS Studio is available for almost all operating systems, including Linux. You can choose to install the program via a PPA or as a Flatpak.
I couldn't tell any difference in performance, so I ultimately decided to go with the Flatpak version. If you want to show your face to viewers in your videos, a webcam is a must.
Logitech C920
One of the most popular webcams for consumers is the Logitech C920 Pro. The camera is capable of recording 30 frames per second in HD.
However, when the camera is added as a source in OBS Studio, the initial reaction is one of disappointment. The frame rate is well below 30 fps—in my case, it was a mere 5 fps.
At such low rates, a decent recording is out of the question. Fortunately, the problem can be fixed with just a few changes to the settings.
The main cause is usually the default video format, YUYV 4:2:2.
To change this, select the camera in the middle window and then click the "Properties" button.
It doesn’t really matter which other setting you choose for the video format—it works with all the other settings. I chose Motion-JPEG because I like the image quality best with it. But ultimately, this is a matter of personal preference.
Then change the resolution to 1920x1080. If you already selected 30 frames when you first launched OBS (Setup Wizard), you can leave the frame rate unchanged.
Otherwise, set it to 30.
I set the color range to "Full."
I disabled "White Balance, Automatic" and set the value for "White Balance Temperature" to 4060. Play around with the values a bit—and set it to whatever looks best to you.
Power Line Frequency should be set to 50 Hz—the 60 Hz setting is intended for the U.S. power grid.
I set Auto Exposure to "Manual Mode," and my "Exposure Time" is set to 69. Here, too, just experiment to see which value works best for you.
I haven't checked the box for "Exposure, Dynamic Framerate."
As mentioned at the beginning, the most important thing is to change the video format and, to avoid flickering, set it to 50 Hz.
If you don’t see an immediate improvement in the frame rate, just restart OBS Studio.
With the settings above, I get a completely smooth picture even in low-light conditions (desk lamp).
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