Reduce track volume dynamically in relation to another track

I have two tracks, one stereo ( from video footage ) and one mono ( voice narration track .) I’d like to lower the volume of the footage dynamically in relation to the volume of voice narration. Basically when there’s narration happening, I’d like the volume for the video footage to lower to make the narration more audible. I’ve read that the envelope tool can do this, but it has to be done on a point by point basis manually - is there any way to automate something like this?

Effect > Auto Duck?

That’s what it’s supposed to do, but I know almost nothing about it.


Awesome, that worked great! Thanks!