I make documentaries and most of the time I am alone when I'm filming. Since I don't have a second person to carry a microphone I normally get bad audio. I use tie clip mics for long interviews, but when I'm interviewing people in crowded places (such as streets) where I don't have time to mic them up or at events where I am far in a crowd and some one is speaking I can't get good audio because I am holding the camera. So I was wondering if there were any options to get better audio in places with ambient noise with out a soundman? thanks