[Ken Natan]

I found a solution to this. (worked for me at least)

Quite simple and straight forward!

Download (free open source!) Audacity.

Load your audio file. (Video file didnt work for me, i had to convert it to an audio before I could process the file, in my case it was a vob file)

Once loaded, select the area you want to filter/extract voice of. (Sample it first, then get excited … :))

Then go to Effects tab and scroll down until u see Low Pass filter. Play with the parameters and im sure you will have the solution there.

(I had bad noise on my wedding video which i wanted to get rid off and it seems to have done the job:))

Good luck