Another example of sound effects in video

I came across this video today. At first glance it is a cute video that a Dad shot with his two ninja kids. Very cute! But I found myself cringing every time the dad beat up on the kids. Why is that? Simply - the synchronous sounds. They are clearly edited in later, but this is exactly what they do in cinema to make a punch sound more "real." That's right - as I mentioned in a post about the Transformers - the simultaneous impact of the visual and aural results in a perception that the Dad lands a devastating blow on his kids. It's almost hard to watch (but not to worry - the kids win!)