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PrivacyMic can capture information inside the home without recording conversations Shane McGlaun - Jun 9, 2021, 7:51am CDT Engineers at the University of Michigan have created a new device called PrivacyMic that could usher in an era of smart speakers that can capture information inside the home without recording speech. The challenge with smart speakers for many people today is that the microphones are constantly listening for their activation word, so they hear everything that goes on inside the home. PrivacyMic, on the other hand, can listen for the signal that would tur...

Copy Researchers at the University of Michigan have proposed a way to have your privacy cake and eat your home automation too. They've found a means of using a voice-activated smart speaker system without it having to listen to everything you say – and no, it's not "pressing a button." "There are a lot of situations where we want our home automation system or our smart speaker to understand what's going on in our home, but we don't necessarily want it listening to our conversations," said the aptly named Alanson Sample, associate professor of electrical engineering and computer science at t...

Microphones are perhaps the most common electronic sensor in the world, with an estimated 320 million listening for our commands in the world’s smart speakers. The trouble is that they’re capable of hearing everything else, too. But now, a team of University of Michigan researchers has developed a system that can inform a smart home—or listen for the signal that would turn on a smart speaker—without eavesdropping on audible sound. The key to the device, called PrivacyMic, is ultrasonic sound at frequencies above the range of human hearing. Running dishwashers, computer monitors, even ...