Researchers at MIT, Adobe, and Microsoft joined forces to develop an algorithm that is able to recreate an audio signal by studying the tiny vibrations of objects.
The team recorded videos of aluminum foil, the surface of a glass of water, the leaves of a plant, and a potato chip bag, and then extracted audio signals. In the case of the potato chip bag, researchers filmed people talking 15 feet away behind soundproof glass, yet were still able to recover "intelligible speech from the vibrations of the bag," MIT reports.
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Watch the video below to gain further insight into these "visual microphones" and to see and hear the actual experiments. --Catherine Garcia
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