I am trying to isolate only the voices in a movie trailer so I have just the voices and no background music and am having a hard time. The program I am using is Audacity. I have searched the question using google, and I have read what has been suggested, but I don't know HOW to do what is suggested. Suggestions: using VoiceTrap, Noise Removal, and High/Low Pass Filters. But what do I do once I activate each one? I'm so confused, I just can't figure it out. I've tried and the best I have gotten is a muffled voice with high pitch noise in it. Can anyone help, or suggest a better free audio editor? Thanks in advance.