Before You Export

-Checking Volume Levels..."the mix"
*check to see if your voice stands out.
*make sure all other sounds doesn't overlap speakers voice.

-How do the transitions between your voice and the music work?

After you record your voice you plug the music in where need be. As the music starts it begins quiet and as your dialog ends the music gets louder and will play the song at the correct sound level.
When you are going from music to voice as the song draws to and end your voice will cover over the music and you will hear the music in the background as you talk.
*you record what you are about to say.
*after you are done talking,put the music at the end of the presentation so everything flows.