My slide show has some video clips and I would like to lower the volume of the audio music while the video is playing so that the commentary on the video can be heard.

Can I do this?

I’m looking for the same answer. Anyone?

I just figured it out. Click on the slide where you have the video. In the right pane, under “Movie” options, set the volume of the video to 100% and then put a check in the box after “Ducking”. Set the “Lower others by” to 100% to completely eliminate the other audio (or some other % if you still want the background audio to play). Hope that helps.