If the audio and narration sound good, you can skip the next step.
13. In the Audio Clip Volume dialog box, move the slider to the left to make the narration quieter, or move it to the right to make it louder. Then click OK. Return to step 11 to listen to the narration again, and make another adjustment if necessary.
If you don’t like the way your narration sounds, don’t worry—nobody likes to hear their own voice. Just relax and speak in a normal tone, as if you were telling a friend on the phone about your movie. It may take you a few tries to get the timing right so that your narration doesn’t go on longer than your movie. If you misspeak often, it might help to write a script that you can read during the narration. To delete narration so that you can re-record it, right-click the narration on the timeline, and