audio cleaning software

We have a conference coming up next week for all of our senior staff and directors. 

Greetings. I'm looking for a filter or tool that can remove the music from a live video source (e.g., a NASA broadcast), while leaving the voices and non-musical noises. It doesn't have to be perfect, but it needs to remove/mute enough of the music to avoid triggering YouTube's copyright detection, and not mess up the voices too much.

Hello everyone,

Hey guys,

I've got a request, but I'm not sure if these are the right forums to come asking. If they aren't, please point me in the right direction, because Google did not.

There is a particular audio file I have of an old song that has some damage. It's mainly that annoying crisping sound throughout the song, but it really bothers me because it's such a beautiful song.