Fix bad audio

Closed - This job posting has been filled and work has been completed.

Job Description

I have about 3 or 5 files that we filmed and the audio is very bad. In some cases the mic wasn't on. I need someone who can do the following:

Increase the volume of the speaker
Decrease the volume of the ambient noise

You can use whatever filters you need to make it sound better as long as the speaker doesn't sound like a robot.