4 ms·
You also don't even need to use RF. You can also use high-frequency audio to communicate to other devices, though I guess I'm not sure how you get it out of the
by uep 7y ago
You also don't even need to use RF. You can also use high-frequency audio to communicate to other devices, though I guess I'm not sure how you get it out of the building.
It has been said that covert agencies have monitored conversations through windows by measuring the acoustic vibrations with a laser. So maybe that will work, but I have no idea how well that works with higher frequencies outside of human perception.
- rtkwe 7y agoHigher frequencies will get filtered out. They don't have the power to vibrate the glass unless it's very loud.
- deleted 7y ago[deleted]
- trhway 7y agoCuban sounds as an [ultrasound intermodular distortion based] attack on electronics with humans seeming to be a side effect: https://www.google.com/amp/s/spectrum.ieee.org/semiconductors/devices/how-we-reverse-engineered-the-cuban-sonic-weapon-attack.amp.html https://www.google.com/amp/s/spectrum.ieee.org/semiconductor...
- JetSpiegel 7y agohttps://www.nytimes.com/2019/01/04/science/sonic-attack-cuba-crickets.html https://www.nytimes.com/2019/01/04/science/sonic-attack-cuba...