When I save my movie and play it back afterwards, there is a weird beeping sound at one point in the video. The audio fades out, there's a high-pitched beep for an instant, and then the audio comes back. It's extremely annoying and noticeable. The beep isn't there when I edit the movie, but it is after I save it. I know it's not my video player, so what's going on? I haven't seen anyone else complain about this. Just so you know, I am editing 60fps 1080p footage from a videogame.