Noise-induced hearing loss (NIHL) is a leading occupational illness amongst workers in the United States due to prolonged noise exposure in loud work environments. Industry regulations and hearing protection devices can limit and reduce noise exposure, however, a lack of proper fit and/or safety education reduces the effectiveness of these standards. Noise dosimeters can track noise exposure for a given work period but current designs are bulky and do not measure directly at the eardrum. For these reasons, our goal is to design a custom-fit in-ear dosimeter that can identify and track harmful noise exposure to validate noise reduction and prevent NIHL. We have built a preliminary Arduino-based model that captures noise level in real-time to a cellular phone. We will then fit for custom earbuds as well as run tests on 10 subjects for comfort and compare acoustic data to standard noise reduction ratings.

Preliminary Study for In-Ear Dosimeter

Advisor: Dr. Guna Selvaduray

Author: Niko Larot, Marjia Chowdhury, Arthur Hernaez, Niki Moehebi