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kleinbl00 · 3567 days ago · link · · parent · post: MIT can now eavesdrop through soundproof glass by watching the vibrations of a bag of chips | ExtremeTech
You'd run into serious frame lock problems, too - lossy codecs such as h.264 and (pretty much everything in consumer gear) don't much give a crap about temporal frame length. This doesn't matter when you're recording video with audio as the frame captures both. When you're syncing two systems the footage tends to drift after about five minutes. If you're looking for interframe CMOS roll and comparing two different samples in order to get an interpolated waveform, that shit would have to be locked tight to provide anything useful as the harmonic effects would be cmopletely swamped by the inaccuracies of the frame start and stop times.