I like how MicSwapVideo makes the video sounds like heaven and was gonna pay for it. But I cannot use it, there's very, very obvious 0.5 sec video-sound out of sync.
It may be fine for recording sport actions, but for music instrument, IT LOOKS LIKE I AM FAKING PLAYING THE INSTRUMENT.
I believe the same issue bothers those vocal videos too, you automatically become a ventriloquist when the vocal sound is out while you mouth is absolutely shut. Funny and frustrating.
MicSwapVideo is good for non-sound sensitive videos, like sports etc., it's just not good when you’re actually playing your own music. But isn’t it what MicSwapVideo is all about?
(To help developers debug, the original video in iphone album was ok. It’s out of sync right after importing, not when you applied all sound effects and exporting)