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Making Things and Drawing Boundaries: Chapter 11

Making Things and Drawing Boundaries

Chapter 11

Chapter 11

Mic Jammer

Allison Burtch and Eric Rosenthal

Mic Jammer is an ultrasonic security system that gives people the confidence to know that their smart phones are non-invasively muted. When pointed at a smart phone, it de-senses the phone’s microphone by applying a high-level, ultrasonic signal inaudible to humans but not to technologies.

Figure 11.1. Mic Jammer. Format: Ultrasonic security system. Materials: Smart phones, printed circuit boards, ultrasonic signals, and various electronic components, including an ultrasonic speaker. Allison Burtch and Eric Rosenthal. Courtesy of Allison Burtch.

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