OBS-Studio: Filters for Sources/Scenes/Devices

OBS-Studio: Filters for Sources/Scenes/Devices

In OBS-Studio we now have the ability to add filters to our Sources, Scenes and even our Audio Devices. The following filters are available as of writing this guide:
  • Scenes/Sources
    • Image Mask/Blend
    • Crop
    • Color Correction
    • Scroll
    • Color Key
    • Sharpen
    • Chroma Key
  • Audio Devices
    • Gain
    • Noise Gate

You can add them by right-click your desired Scene, Source or Device and selecting "Filters" (for Audio Devices, click on the gear icon next to your device). But let me explain what the different filters allow you to do.

Image Mask/Blend
The Image Mask/Blend filter gives us the option to use the Color or Alpha Channel of an Image as a Mask or to Blend an Image (multiply, addition, subtraction) over your Scene or Source. This can be used to give your webcam a round border for example:

The crop filter should explain itself but in short it lets you cut off the top/left/right/bottom of your source/scene to only show the parts you want.

Color Correction
Again, the name says it all. You can change the contrast, brightness and gamma of your source and even give it a different look.

The scroll filter gives us the ability to give our text for example a scrolling effect, left-to-right and top-to-bottom. Negative and positive values will change the direction in which your source will scroll and you can limit the height and width if necessary.

Color Key and Chroma Key
Both the Color Key and Chroma Key filter can be used to remove a certain color of your source and make it transparent. This can be used for greenscreens and similar stuff.

The sharpen filter should explain itself as well, if you feel your webcam input for example is a bit blurred and you want to improve the overall sharpness a bit, add the filter and test with different values.

For very quiet audio sources you can add some gain to increase the volume using this filter.

Noise Gate
And last but not least, the Noise Gate allows you to cut off all background noise while you are not talking. Select a close threshold above the noise volume and an open threshold slightly below your voice input to get good results.

In the future more filters will be added to OBS-Studio, so always keep an eye out for the next update of the software.

And in video-form:
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