Ratio: The amount of compression to apply.It will automatically turn down the input’s volume so that it doesn’t peak, which can cause distortion and other audio artifacting, and then turn it back up once the volume is back to normal. CompressorĪ compressor is very useful if your input (usually a microphone) is tuned for a normal volume, but can sometimes spike to much louder levels, such as impromptu shouting or getting into a heated discussion. in a loud room) it can be quite effective at reducing things like PC fan noise or other environmental noises. While this is generally not effective at large amounts of background noise (i.e. The Noise Suppression filter can be used to remove mild background noise or white noise that may be in any of your audio sources. Select a close threshold above the noise volume and an open threshold slightly below your voice input to get good results. The Noise Gate allows you to cut off all background noise while you are not talking. Audio Device Filters Gainįor very quiet audio sources you can add some gain to increase the volume using this filter. 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.
This filter allows you to apply a LUT to your video sources. They behave slightly differently, so you will need to experiment and see which works best for your personal use case. This can be used for green screens and similar stuff. Color Key and Chroma Keyīoth the Color Key and Chroma Key filter can be used to remove a certain color of your source and make it transparent. Negative and positive values will change the direction in which your source will scroll and you can limit the height and width if necessary. The scroll filter gives us the ability to give our text for example a scrolling effect, left-to-right and top-to-bottom. You can change the contrast, brightness and gamma of your source and even provide a color overlay. Color CorrectionĪgain, the name says it all. 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. This can be used to give your webcam a round border for example: Crop 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. Scene and Source Filters Image Mask/Blend But let me explain what the different filters allow you to do. 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). In OBS Studio we have the ability to add filters to our Sources, Scenes and even our Audio Devices.
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