Here is a video for Audacity .. how to edit volume on pre-recorded audio. I did not record sound but I have a text message at the end of the video. Just trying different methods of using video!

I created a larger picture video here ! (takes longer to load)
~Lee

Large = http://newmediaguides.com/movies/AudacityEditing.mov
Small = http://newmediaguides.com/movies/audacityeditingamplify.mov