AudioPupil: A Low-Cost Embedded Medical Device for Hearing Disorder Screening

Hearing impairment is an increasing global public health concern, yet traditional diagnostic methods are often inaccessible due to their high cost and complexity. This paper introduces a low-cost digital tool for objectively screening hearing disorders, utilizing a novel approach that leverages involuntary pupil dilation in response to sound as a comprehensive measure of auditory processing. The tool is designed for maximum user accessibility, featuring an intuitive interface, a detailed user man-ual, and cost-effective, high-precision sensors. A prototype has been successfully tested in a laboratory setting, demonstrating not only the system's potential for early detection and management of hearing impairments, particularly hyperacusis, but also its reliability and accuracy in capturing subtle auditory responses.