Hi guys, wondering if anyone could recommend an easy to use audio tool for removing hiss and or noises out of a .avi , .mp4 or .m4v ? I have an old tv show series (My Three Sons) that I would like to make available to my parents on the TV that has a very pronounced hissing sound, and was wondering if anyone can make recommendations on a program that would be a candidate to manicure the audio a little bit? Free would be awesome but I dont mind paying for someone elses hard work, especially if they took the time to make it user friendly. Thanks BTW: Also sort of related to this topic, are there any programs that can correct audio sync problems? Say where a person could pick a frame to match the audio to and the program would custom modulate the audio frequency, ect and re encode the tracks to fit better?