I've found this about "AutoDuck"
> 2 - The second is the "AutoDuck" thing... What is it? Is that related to
> the animal?? :) :) : )
> I've translated it like "Mute automatically"
> I think you use it in a case like this:
> You have a track with music, but now you add a commentary track.
> Everytime spoken word is heard on the second track, you want the music
> on the first track turned down automatically. This is what auto duck can
> do for you.
> Tino Meinen
Now what is "AudioUnit" ?