NeverarGreat said:
https://www.youtube.com/watch?v=fHfhorJnAEI
It's now possible to recover sound in a video by analyzing the movement of objects within the video. I hope somebody uses this for old silent movies, just for fun. Also, for Star Wars, it may be possible to recover some of Prowse's original dialogue on set. That's neat.
Given that the sound recovery is all done from high-speed video, which is necessary in order to record vibrations at the frequency of sounds... I don't think so.