shirgall Posted January 12, 2015 Posted January 12, 2015 Compared to the previous video "How Much Can You Change", Stef's lips are out of sync with the audio. Consider the use of a clapperboard to help with this. https://en.wikipedia.org/wiki/Clapperboard
nathanm Posted January 14, 2015 Posted January 14, 2015 Assuming the microphone is plugged into the camera the audio can't be out of sync, it's a YouTube encoding error I would guess.
shirgall Posted January 14, 2015 Author Posted January 14, 2015 Our mental processing of visual information can handle filtering out sync issues if it's <100ms. At 60fps this is on the order of a difference of 6 or 7 frames you can be off and people won't notice. I pointed it out because the previous video was not out of sync so something slipped into the process in that short amount of time. A clapperboard can get your sync down to the same frame, so we can have tolerance of a little variation in the processing that gets done to videos down the line where we have no control.
FriendlyHacker Posted January 30, 2015 Posted January 30, 2015 The audio can be out of sync, because the audio is being filtered for noise reduction, volume adjustment and then being added back to the video.
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