wearable microphone jammer

We engineered a wearable microphone jammer that is capable of disabling microphones in its user’s surroundings, including hidden microphones. Lastly, our wearable bracelet is built in a ring-layout that allows it to jam in multiple directions. 773.702.2076, 1463 E. 53rd St., 2nd Floor Chicago, IL 60615 1. We confirmed that an ultrasonic microphone jammer is superior to state-of-the-art and commercial stationary jammers by conducting a series of technical evaluations and a user study. However, current jammers require users to point the jammer in the direction of the microphone, which limits their utility since the location of a smart device is not always known. ABSTRACT We engineered a wearable microphone jammer that is capable of disabling microphones in its user's surroundings, including hidden microphones. Yuxin Chen and colleagues engineered a wearable microphone jammer that is capable of disabling microphones in its user’s surroundings, including hidden microphones. Our prototype is a self-contained wearable comprised of ultrasonic transducers, a signal generator, a microcontroller, a battery, a voltage regulator and a 3W amplifier. If you are concerned about privacy then this wearable microphone jammer is what you need to disable hidden microphones in your immediate surroundings and keep your conversations private. Designer, developer and manufacturer of speaker systems. Chen et al. Our device is based on a recent exploit that leverages the fact that when exposed to ultrasonic noise, commodity microphones will leak the noise into the audible range. 773.834.1522, 1452 E. 53rd St., 2nd Floor ( Download PDF here ), Matlab simulation code, Arduino code for signal generator and 3D printing model are available on Github. We engineered a wearable microphone jammer that is capable of disabling microphones in its user’s surroundings, including hidden microphones. In Proceedings of CHI Conference on Human Factors in Computing Systems 2020 (CHI'2020). wearable microphone jamming We engineered a wearable microphone jammer that is capable of disabling microphones in its user’s surroundings, including hidden microphones. (a) We engineered a wearable ultrasound jammer that can prevent surrounding microphones from eavesdropping on a conversation. Congrats to Jenna, Shiliang and Xinyi on their CHI paper on gender bias detection! Wearable microphone jamming. DoS [128]: ... neighboring nodes to detect the presence of a jammer, hence, in large scale deployments, it is not possible to detect a jamming ... security in wearable computing applications,” in High Capacity Optical Networks and Enabling Technologies, 2008. Yuxin Chen and colleagues engineered a wearable microphone jammer that is capable of disabling microphones in its user’s surroundings, including hidden microphones. Our device is based on a recent exploit that leverages the fact that when exposed to ultrasonic noise, commodity microphones will leak the noise into the audible range. Wearable microphone jamming – ACM Conference on Human Factors in Computing Systems 2020 Wearable Microphone Jammer – Polsky Tech Publisher // Patent of the Week is a weekly column highlighting research … We found that the WER for planar and i4 dropped drastically after 90 degree, while our wearable maintained a constant jamming effect >87%. Feb-23-20. Word error rate (WER) of speech recognition for jamming with our wearable, planar jammer and i4. To tackle these shortcomings, we engineered a wearable jam-mer that is worn as a bracelet, which is depicted in Figure 1. University of Chicago researchers have built an experimental bracelet that uses ultrasonic broadcasts from 24 speakers to jam most microphones, no matter what direction they're in. However, all these devices exhibit two key limitations: (1) They are heavily directional, thus requiring users to point the jammer precisely at the location where the microphones are. The bracelet randomly emits ultrasonic noise to jam microphones in speakers, smartwatches and smartphones. Congrats to Yuxin, Huiying and Shan-Yuan on their CHI paper on Wearable Microphone Jammers! While these ultrasonic signals are imperceptible to human ears, they leak into the audible spectrum after being captured by the microphones, producing a jamming signal inside the microphone circuit that jams (disrupts) voice recordings. By turning an ultrasonic jammer into a bracelet, our device leverages natural hand gestures that occur while speaking, gesturing or moving around to blur out the aforementioned blind spots. •The jammer prototype is circular bracelet of ultrasonic transducers that emit signals that are silent to the human ear and harnesses the user's non-verbal cues while speaking to increase coverage of the acoustic signal and diminish blind spots. transducer jammer are blind spots. With the wearable jammer worn in trials with speakers using natural gestures, the WER of the microphone is above 87%. 773.795.0075, 5113 S. Harper Ave., Suite 2C it from microphones in the car. The wearable jammer has a word error rate (WER) of above 87% regardless of the position of the microphone (blue trace). Furthermore, even when the wearable jammer is held static, the WER is 40-60%. February 14, 2020. HONET 2008. This is not only impractical, as it interferes with the users’ primary task, but is also often impossible when microphones are hidden. The wearable works by using a series of ultrasonic sensors that will blast a frequency in all directions that can't be detected by the human ear but will jam all surrounding microphones.

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