I did a little experiment as part our code Jam. My goal was to create a sketchy version of any video. I picked an Obama girl video from you tube. During re-encoding stage I accidentally picked half the number of video frames. There was considerable audio lag due to that. The outcome was hilarious. At least I thought so. Check it out..
Very Sketchy Obama Girl...
Here is the original
I did fix the audio sync problem later. I will write about the technical details once I do some more polishing to code..