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comment by benben
benben  ·  4683 days ago  ·  link  ·    ·  parent  ·  post: How to Build a Speech-Jamming Gun
I remember seeing a device that would allow you to project your voice in a way that you could talk to someone from very far away and nobody but that person would hear it.




thundara  ·  4683 days ago  ·  link  ·  
Nobody meaning due to location? Or due to some sort of encoding/decoding mechanism in the device?
benben  ·  4683 days ago  ·  link  ·  
All I could find was this: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5670...

I'm pretty sure it was a TED talk. Sorry I couldn't be more specific.

thundara  ·  4682 days ago  ·  link  ·  
Seems to be projection, neat though. The Exploratorium in San Francisco has two benches set up that are shaped in a way to project sound, allowing you to have conversations at opposite sides of the building.
benben  ·  4683 days ago  ·  link  ·  
meaning encoding/decoding mechanism in the device?. I'll try to find it.