Anyone know if there is a way to adjust the audio level after importing?

I have a voice script already imported and lip sync'd. I now realize that the audio is too low. If I import a new .wav for the script it overwrites the current lip sync. Don't want to do that. Can I increase the db of the audio from within CTA?

CTA3
Mac OS X

Attach a dummy prop and drag the music file onto it. but make sure u name the dummy prop.