full transcript

## 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 ___________.

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
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