[Vinod.S] took the ultrasonic transmitter and receiver from a distance-meter module and used amplitude modulation to send music ultrasonically from his laptop to a speaker, essentially ...
But a hackier way would be to build a parametric speaker that focuses soundwaves into a narrow beam like [Shane] did with this ultrasonic sound gun. As the directivity of a soundwave depends on ...
USound, the global leader in MEMS loudspeakers, today announced the showcase of its fully developed ultrasonic sensing module at CES 2025 in Las Vegas, Nevada. Demonstrations of the ready-to ...
Researchers in China set up a loudspeaker to broadcast voice commands that had been shifted into ultrasonic frequencies. They said they were able to activate the voice-controlled assistant on a ...
USound, the global leader in MEMS loudspeakers, today announced the showcase of its fully developed ultrasonic sensing module ...