The future of cheating over the board

  

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Thibault de Vassal    (2025-03-27)
The future of cheating over the board?

"Scientists create sound that can curve through a crowd and reach just one person

Engineers at Penn State have introduced a breakthrough audio system called “audible enclaves” that can send sound directly to one person without anyone else hearing it—and all without the use of headphones.

The system relies on ultrasound waves, which travel silently through the air. When two beams with slightly different frequencies cross paths, they generate an audible tone right at that meeting point, allowing only the intended recipient to hear the message.

Even more impressive, the sound can curve around obstacles to reach its target. In initial tests, it worked effectively up to three feet away. This innovation opens the door for private audio experiences in shared spaces and better control of sound in noisy environments, though it's not yet ready for commercial use."

(Source: Facebook)


Stanislas Gounant    (2025-03-30 03:05:34)
The future of cheating over the board?

I seem to remember reading that at the 2016 World Championship in New York, the organizers isolated the players from the spectators with an anti-radiation curtain. I don't know if it works for sound frequencies. In any case, I suppose that devices can detect the abnormal presence of ultrasound as well as that of audible sounds.