Daniela Goldan, Alin Ciobîcă, Cristian Rotariu
ABSTRACT :
Hearing loss affects more than 5% of the global population, a percentage that is steadily increasing due to population aging, noise exposure, and chronic conditions. To address this issue, the present paper proposes a non-invasive hearing device based on the principle of bone conduction, designed especially for individuals who cannot use conventional hearing aids. The system consists of an RP2040 microcontroller, two MAX4466 microphones, a set of bone conduction headphones, and a smartphone with a dedicated application. Ambient sound is captured, processed in real time, and transmitted to the user through vibrations applied to the mastoid bone, thus bypassing the impaired auditory structures. Preliminary laboratory tests have confirmed that the device effectively reproduces auditory perception, highlighting its potential to offer an accessible, customizable, and user-friendly solution for individuals with hearing impairments. The device represents a viable alternative to traditional hearing aids, contributing to an improved quality of life for its users.