Shush

Research Context
Starting from an interest in sound sensitivity, extensive mind mapping and research led to a focus on the impacts of environmental noise, uncovering the true nature of the sensitivity users were experiencing. The project posed the critical question: “How can we protect users from public health risks linked to environmental noise to bring about significant systemic change and counter the inaction of public authorities?”

Design Solution
To address the need for personal protection at a systemic level, the design comprehensively tackles the “wicked problem” of noise exposure. The solution features a hearing filter that allows noise to enter, travels to the ear canal, and reduces resonance and perceived noise levels. Its tunnel shape mimics the human ear canal, maintaining sound clarity while minimizing exposure and protecting users. The underside, in contact with the ear, is made of medical-grade silicone, covering a robust PLA shell to enhance comfort for extended wear and resistance to breakage.

As part of the graduate exhibition, the prototype was made with 3D-printed resin and molded silicone. The electronic components included sound monitoring capabilities built using an Arduino Nano Sense Rev 2 and an Arduino charger module for the case. The Arduino Nano was programmed to provide noise exposure graphs in decibels, sharing data via low-energy Bluetooth with a mobile device. The monitoring application, prototyped using Adobe XD, allowed visitors to interact with the design on an iPad.

User Experience
Connected protectors enable users to monitor their hearing health through the application, measure exposure levels using the internal microphone, and receive notifications when protection is needed. Users can control their profiles and access historical statistics, visualizing current exposure through graphs for easier understanding. Aggregated user statistics are accessible to the public and government authorities on an OpenSource platform, ensuring transparency and countering misinformation. This transparency fosters social pressure, encouraging systemic change and proactive measures to address the problem.

Conclusion
This project reinforced my understanding of the intricate relationship between environmental noise and public health. It highlighted the necessity of interdisciplinary approaches to address complex health issues and emphasized the role of design in creating effective solutions for public well-being.