(Thanks to Atid-EDI) With Israel’s Silentium, you can now create a “bubble” of silence at home, office or in public places. Silentium’s anti-noise systems eliminate noise by capturing it and canceling it out by reversing the phase. The system was demonstrated at CES Expo in Las Vegas.
https://www.silentium.com/?p=923
https://www.youtube.com/watch?v=dSIEfkSviXI