How do I mute or lower volume of video clips in Aperture slideshows?
I'm using some underwater footage in a slideshow, and the sound of bubbles etc. overwhelms the music. I see no way to manage the two audio tracks in a slideshow -- the music just fades out, ruining the continuity. I tried editing the clips in iMovie, but I have no idea how to simply open a clip, lower the audio, and export it back as an asset to add to Aperture. Any ideas?
Aperture 3, Mac OS X (10.7.5)