One-Way Sound Walls Proven Possible
disco_tracy writes "Imagine a room where a band is playing. Neighbors can't hear the music, but if someone outside the room is talking, the musicians can hear it. The concept — a kind of one-way mirror for sound — seems imaginary, but two Italian scientists recently pushed this kind of sound manipulating technology closer to reality (abstract)."
- "You have a banana in your ear!"
- "I'm sorry, what?"
- "YOU HAVE A BANANA IN YOUR EAR!"
- "I'm sorry, I can't hear you, you're on the wrong side of the wall!"
This would be material based and not require additional power?
It would be great for those baby-rooms they used to have in movie theaters. The people inside could hear the movie without the audience hearing the screaming kid.
I believe one-way mirrors are completely dependent on highly disparate levels of light between the two regions. This paper describes a totally different physical mechanism.