Program to "smooth" audio levels out?

[imported_Phil]

I have some rather old AVI captures from VHS of a comedy show, and the audio's going up and down like a rollercoaster, at roughly 1-2 minute intervals.

Is there something out there that can automatically smooth the levels out?

 

[HN]

See if one of these methods work
http://www.divx-digest.com/articles/normalize_avi.html