I am able to play back a recording I've done back through my headphones so I know the audio is there and sounds good, but when I export the file, whether it's .wav or .mp3, the file just plays silence. I know it's not my media player, I emailed the .mp3 and .wav file to a friend and he had the same issue I had when playing them back. Probably something obvious but I'm a bit frustrated as I have the sound I want but cannot seem to do anything with it that is usable. TIA for any help on this issue