Smart stereos, smartwatches, and smartphones have become ubiquitous digital products in our daily lives, and our daily conversations and privacy can be monitored by them, so a team of researchers from the University of Chicago has successfully developed ultrasonic wearables that disable microphones without compromising our conversation.
The wearable device is equipped with 24 separate transducers, each of which emits ultrasonic waves, disturbing the microphone in all directions, preventing them from recording our conversations. The idea is to send white noise randomly over a frequency range of 24 to 26 kHz, so nearby microphones can only record some wind noise and not collect our conversations.
“While there was initial excitement around voice-based smart devices, consumers are becoming increasingly nervous because these interactive devices are always monitored by default, recording and possibly saving sensitive personal information,” the team said. Therefore, in the age of voice-based smart devices, it is critical to build tools to protect users from potential damage or abuse of microphones. “
The ultrasound siphone dies from this wearable device does not interfere with the human ear. “We believe that in a world where more and more devices are eavesdropping on our conversations, our wearables provide privacy,” the researchers concluded. “