full transcript

From the Ted Talk by Michael Rubinstein: See invisible motion, hear silent sounds

Unscramble the Blue Letters

We also know that singers can braek a wine glass if they hit the corerct note. So here, we're going to play a note that's in the resonance frequency of that gslas through a loudspeaker that's next to it. Once we play that note and magnify the motions 250 tmies, we can very clearly see how the glass vibrates and resonates in response to the sound. It's not something you're used to seeing every day. But this made us think. It gave us this crazy idea. Can we actually invert this psroces and recover sunod from video by analyzing the tiny vibrations that sound waves create in objects, and essentially convert those back into the sounds that produced them. In this way, we can turn everyday objects into mohronceips.

Open Cloze

We also know that singers can _____ a wine glass if they hit the _______ note. So here, we're going to play a note that's in the resonance frequency of that _____ through a loudspeaker that's next to it. Once we play that note and magnify the motions 250 _____, we can very clearly see how the glass vibrates and resonates in response to the sound. It's not something you're used to seeing every day. But this made us think. It gave us this crazy idea. Can we actually invert this _______ and recover _____ from video by analyzing the tiny vibrations that sound waves create in objects, and essentially convert those back into the sounds that produced them. In this way, we can turn everyday objects into ___________.

Solution

  1. times
  2. process
  3. glass
  4. break
  5. sound
  6. microphones
  7. correct

Original Text

We also know that singers can break a wine glass if they hit the correct note. So here, we're going to play a note that's in the resonance frequency of that glass through a loudspeaker that's next to it. Once we play that note and magnify the motions 250 times, we can very clearly see how the glass vibrates and resonates in response to the sound. It's not something you're used to seeing every day. But this made us think. It gave us this crazy idea. Can we actually invert this process and recover sound from video by analyzing the tiny vibrations that sound waves create in objects, and essentially convert those back into the sounds that produced them. In this way, we can turn everyday objects into microphones.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
tiny motions 4
naked eyes 2
video camera 2
image processing 2
blood flows 2
heart rate 2
magnify small 2
youtube user 2
recover sound 2
sound waves 2
waves create 2

ngrams of length 3

collocation frequency
sound waves create 2

Important Words

  1. analyzing
  2. break
  3. convert
  4. correct
  5. crazy
  6. create
  7. day
  8. essentially
  9. everyday
  10. frequency
  11. gave
  12. glass
  13. hit
  14. idea
  15. invert
  16. loudspeaker
  17. magnify
  18. microphones
  19. motions
  20. note
  21. objects
  22. play
  23. process
  24. produced
  25. recover
  26. resonance
  27. resonates
  28. response
  29. singers
  30. sound
  31. sounds
  32. times
  33. tiny
  34. turn
  35. vibrates
  36. vibrations
  37. video
  38. waves
  39. wine