Tsutomu Terada

UltrasonicWhisper: Ultrasound Can Generate Audible Sound in Your Hearable

Recent studies have shown that ultrasound can be used for voice input to microphones such as smart speakers by taking advantage of the nonlinearity of the microphones. A similar attack on the hearing of a user wearing a hearable with an outside microphone is also possible. Specifically, information modulated by ultr…