Clarify Audio From Short Video

I have a video that runs under five minutes, but the soundtrack is so muffled it is almost impossible to understand. I need someone who specialises in audio enhancement to isolate the dialogue, clean up background interference, and deliver a version that lets me clearly hear what is being said... (Budget: $15 - $25 USD, Jobs: Adobe Audition, Audio Editing, Audio Engineering, Audio Processing, Audio Production, Audio Services, Sound Design, Transcription)