We 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. By making it wearable, our jammer outperforms existing approaches with an improved coverage and less blind spots.

This work is a cooperation between SAND lab and HCI lab at the University of Chicago. For more information and source code, please refer to SAND lab project page.

Authors Yuxin Chen*, Huiying Li*, Shan-Yuan Teng*, Steven Nagels, Zhijing Li, Pedro Lopes, Ben Y. Zhao, Haitao Zheng (*equal contribution), University of Chicago
Publication Yuxin Chen, Huiying Li, Shan-Yuan Teng, Steven Nagels, Zhijing Li, Pedro Lopes, Ben Y. Zhao, and Haitao Zheng. 2020. Wearable Microphone Jamming. In Proceedings of CHI Conference on Human Factors in Computing Systems 2020 (CHI’2020). https://doi.org/10.1145/3313831.3376304
Award 🏅 CHI ‘20 Best Paper Honorable Mention Award
Paper PDF (720KB)
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