The Core

Why We Are Here => Water Cooler => Topic started by: ukgimp on April 27, 2017, 01:33:24 PM

Title: Using High Speed Video to make a Mic
Post by: ukgimp on April 27, 2017, 01:33:24 PM
https://youtu.be/FKXOucXB4a8

"High speed cameras can decode the slight vibrations of objects in videos to recover audio. Even through sound proof glass."
Title: Re: Using High Speed Video to make a Mic
Post by: ergophobe on April 27, 2017, 05:19:25 PM
Interesting. I guess it's another case of a type of sensor that is becoming democratized

Remember how the Soviets used IR detecting vibrations to eavsedrop on the US embassy since the 1940s
https://en.wikipedia.org/wiki/Laser_microphone