The Visual Microphone

[The Tasmanian]

Now we can even use a packet of chips as a microphone, foil, plants etc - using hi speed video.
fascinating
http://people.csail.mit.edu/mrub/VisualMic/

[Djembe]

Wow, that's really interesting, but also a worry for intrusive surveillance. Hope ASIO is not watching.

[Trent Griggs]

Watch Google snap this technology up

[The Tasmanian]

The basic technology has been around since the Russians used glass windows of the pentagon to spy/record the conversations inside, using lasers bounced off the glass windows to record the audio. The Cuban missile crisis.

Nice to have it now on video - digital, opens the world up to using a whole room, and everything in it as a multi diaphragm microphone.

[Chris H]

.........they might be able to hear a fart but they still can't smell it!

[Trent Griggs]

That's right, I remember you telling me about that the other week. Too many long hours ago..

[Paul Maybury]

Smell O Vision can't be far away.