Re:Laser-Based Audio Injection Attacks on Voice-Controllable...
by eeZah7Ux on Tuesday November 05, 2019 @01:06PM
(#21454903)
Modulating a laser at audio frequencies is pretty trivial.
You can probably inject the signal straight from the headphone output of a smartphone into the right pad in the laser pointer with a decoupling resistor and inline capacitor.
...if you don't care about audio quality and longevity of the laser.
You can probably inject the signal straight from the headphone output of a smartphone into the right pad in the laser pointer with a decoupling resistor and inline capacitor.
...if you don't care about audio quality and longevity of the laser.
http://www.yak.net/fqa/229.html