How to reduce background noise techniques?

[ArtLess007]

 Learning how to use Audition through trial-and-error (mostly error), and have a sample that I've been trying to learn about reducing background noise.

How would you remove the distortion/hum/fuzz/noise from the background of this "scary movie scream" mp3 file?

[Rag and Bone]

I'm going to give you the same link I just gave to another user:

See this page.