The Visual Microphone: Passive Recovery of Sound from Video

[Walter]

or: only the paranoid survive.

Turning cameras into microphones and recovering sound from the minute vibrations seen in objects:

 

[dogtowner]

Whoa....
Somebody has too much time on their hands if they dreamed this up

 

[Walter]

Its working and I'm sure this technology is in use by intelligence services. Tech like intercepting with Laser is pretty common.

 

[dogtowner]

Its working and I'm sure this technology is in use by intelligence services. Tech like intercepting with Laser is pretty common.

Yeah i know things like this are always being looked into with the military and intel world.
Where else it winds up now will be pretty interesting to see.

 

[Texas_tea]

I wonder if the technology will ever be able to extract sounds from earlier cameras?

Think of how many silent films exist and the sounds that could be extracted from them.

For instance the clip below.