Adobe Captivate: Methods for Attaching Voiceover Audio
The Logical Blog by IconLogic
FEBRUARY 7, 2013
Object-level audio is ideal if you want to quickly add sound effects to slide objects. However, I wouldn't use this technique for voiceover audio. As for voiceover audio, I don't recommend that you add it to a project as the background. First, there's a production speed benefit. If you're not concerned with saving production time, perhaps my second reason for adding voiceover audio at the slide level will get your attention.