Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Sound › How to get rid of background sound?? › http://www.studiodaily.com
The above link is a tutorial on repairing bad audio using sound forge 9. Most of the latest pro editing software have tools built in to help do this. Dedicated audio software like Pro Tools, Sound Forge, Sound Booth and so on are best suited for this kind of audio post cleanup. Be advised, though you may be able to remove or equalize the sound to an acceptable level you run the risk of altering your clean audio unfavorably. This is an option, but depending on how bad the jackhammer noise is (jackhammer usually = bad – awful) ADR may be the most painless solution (despite what your budget may say.)
I do want to know how you resolve this problem.