Cool, I didn't know you can use the microphone in Flash. But I'm confused what you are trying to do with it? The microphone doesn't seem to affect the lip sync animation. And I'm sort of confused what the whole point is. Was there a bigger idea here?
Interesting you used Flash MX. I tried using MX (I like how it looks) but I couldn't figure out how to edit the scripts. (There was no text box.) So I tried MX 2004, which let me edit scripts, but kept crashing when I changed colors XD. So in the end I used Flash 8 for my game.