4 ms·

And this is also likely very illegal...

• Polylactic_acid 7y ago
  Would it? I'm not aware of any laws about sound that wouldn't bother the human ear. The closest thing I can think of is laws about RF jamming but this clearly isn't a radio frequency.
  • stubish 7y ago
    Hearing aids, emergency telephones and phones used by medical and security personnel are already covered by laws in many places. Also messing with law enforcement devices, like police body cams. The people developing this could technically be liable right now if they tested the device in a public space. It will never get as far as the University library. The main use of this research will be in selling better mikes to the military and police.