OBS-Studio: How to configure your Microphone – Noise Suppression, Noise Gate and Gain Filter
- Noise Suppress
- Remove background noise
- Suppress Level (dB) – lower dB Value = more suppression
- Start on -10 and go down up to -60 until the background noise is gone
- Increases the Input
- Gain (dB) – negative Values will lower your Audio Input while positive Values will increase it
- Do some tests by recording your Audio Input and checking the video to make sure no clipping occurs because of too audio high volumes.
- Noise Gate
- Turn the Microphone off if no one is talking
- Close Threshold
- When the mic drops below this volume, the noise gate will turn off the microphone
- Open Threshold
- When the mic goes above this volume, the noise gate will turn on the microphone
- Attack time
- How long it takes for the mic to go from off to on, as a fade in.
- Hold time
- How long the mic should stay on after the volume has dropped below the close threshold.
- Release time
- How long it takes for the mic to go from on to off, as a fade out.
- In most cases configure your Close Threshold first (it always has to be lower as your open Threshold). First do not talk and see if the Microphone inputs any Volume in OBS, then increase the Close Threshold until the Microphone input stops.
Now start talking and see if your Open Threshold is correct. You should see the green bar moving, meaning your voice comes in. You can then increase the Open Threshold until the Microphone stops showing input in OBS. Then slightly lower it again and you should have a good value.
I personally use them in the following order:
- Noise suppression
- Noise Gate
So first OBS removes the background noise, then it will just open the mic while I am talking and last but not least it will increase this input slightly so you can hear me loud and clear.
Always do a test recording or test stream after you configured your audio settings. Make sure no clipping occurs and that your overall input volume is not too high or too low.