3 ms·

I saw one where they got audio out of a silent video of sound waves in the area vibrating a potato chip packet on the ground. http://news.mit.edu/2014/algorith

• disqard 8y ago
  That was impressive work, but they do require a camera that can record at 2000-6000 fps.
  • Nition 8y ago
    Check out the last portion of the video. They got something out of a 60fps camera, although it's far from good quality.
  • jacquesm 8y ago
    That's logical. Nyquist won't budge just because your idea is clever. https://en.wikipedia.org/wiki/Nyquist_rate https://en.wikipedia.org/wiki/Nyquist_rate
    • Nition 8y ago
      They actually got Nyquist to budge to some extent. Check out the last portion of the video. They took advantage of the fact that digital cameras tend to scan line by line over a short period of time, so there's actually more timing information available in an image than the base 60fps.