How to use Auto-Duck in Real Time: A new audio “ducking” software

First of all, what is audio ducking you might say? If you prefer the wikipedia description click here but in short it means that the audio volume of one source is lowered as soon as our selected source is active. You might know this from Radio Shows or Television. As soon as the moderator is talking, the music volume goes down so you can clearly hear him. This can of course be used in several scenarios and “Auto-Duck” allows you two even have two input sources (Commentator A and B for example) to activate the “ducking”.

So how can we use the software? First of all, use the trial version to test it, if it works with your system and for your setup plans. Second, I had to increase my Microphone  input volume slightly to get the software working perfectly. It depends a lot on the quality and loudness of your Microphone as well as on your general system volumes slightly, but more on this in a bit. Let us now take a look at the Interface:



Channels selection:

  • 1st/2nd input – Allow you to select two sources that will be used to “start” the ducking
  • Ducking on – The source that will be lowered in volume (Can be only music, game or desktop sound)
  • Threshold – The minimum input volume before ducking will be activated

Ducking parameters:

  • Min volume (ducking) – The volume your selected source under “Ducking on” will be lowered to when ducking is active
    • Min to 30% max – Allows you to automatically set the min volume to 30% of your current max volume
  • Max voume (no ducking) – The maximum volume of your selected source under “Ducking on”
    • Max to current – Sets the maximum volume to the current volume of your “Ducking on” source

Fading when ducking:

  • Start-fade duration – Time in milliseconds before ducking will be activated (if the Threshold is reached)
  • End-fade delay – Time before the end-fade duration starts
  • End-fade duration – Time it takes the volume of your “Ducking on” source to climb back to the max volume

And the preview area shows you the different input volumes in visual and digital form, also counting the Peak volume.

So for example if you want to setup the software for OBS and to lower your Music, you would start a preview in OBS to set everything up (your Microphone has to be in use by the software, in our case OBS, so we can select it in Auto-Duck). And you would start your Music so you can test everything in Auto-Duck right away. You should then be able to select your Microphone as the 1st input and your Music player as the “Ducking on” device/source. Click the Start button in Auto-Duck and you should see the sliders in the preview section becoming active as in my example Screenshot.

As mentioned earlier, the further setup now depends a lot on your System, Microphone and of course the sources you want to have the ducking on. In general, first of all activate all devices (Microphone/Music) and select your “Channels” in Auto-Duck, then click the Start button and see how the default settings affect everything when you start talking for example. Then start tweaking your Min and Max volume and finally if you want to, also tweak your Fading durations and delays. You can try my example values, they worked pretty good for me.

After everything is working and if you are happy with the software, go buy it and make your streams more awesome. If you have questions, as always, just use the comments section below!

A big thank you to the  author/developer of the software who supplied me with a license so I could test the software for a longer period of time.