Visual Microphone Turns Video into Sound
Researchers from MIT, Microsoft and Adobe have developed a "visual microphone" that can recover audio signals from vibrations of objects in a video. "When sound hits an object, it causes the object to vibrate," said Abe Davis, a Ph.D. candiate at MIT and first author of the new paper [1]. "The motion of this vibration creates a very subtle visual signal that's usually invisible to the naked eye.
