Hey Bill, how ya doin? A few general guides to use of audio
are:
1) Always use slide-level audio when possible, as it is the
only audio that will display on the timeline, therefore is the
easiest to work with in synching audio-video.
2)
Always synch objects with the audio (on the timeline) ...
never try to synch the audio with the objects.
3) Don't worry about varying your "speech speed". Just input
the audio in your normal golden-voice speed. If you follow #2
above, no changes to your speaking speed, or style, will be
necessary.
Have a good day my friend!