• G Rishika Reddy
• Aldandi Manaswini
• Ch Prem Kumar
• Dr V Saidulu

Hearing loss is a growing global health concern that affects millions of people and significantly impacts their ability to communicate and interact with society. Conventional hearing aids primarily amplify all sounds in the environment, including unwanted background noise, which reduces their effectiveness in real-world situations such as classrooms, busy streets, or social gatherings. To overcome these limitations, this project presents the design and development of an AI-powered smart hearing aid system that leverages artificial intelligence (AI) and digital signal processing (DSP) to selectively enhance speech and suppress noise.The proposed system uses a MEMS microphone to capture ambient sound, which is processed by a NodeMCU/ESP32 microcontroller equipped with DSP techniques and lightweight AI algorithms for noise cancellation, speech detection, and adaptive amplification. The processed audio is then wirelessly transmitted to Bluetooth-enabled earbuds, ensuring comfort and ease of use without the need for custom hardware receivers. The system further integrates environment-aware sound profiling, enabling it to automatically adapt to different acoustic environments. Additionally, features such as health monitoring (heart rate and activity tracking) and fall detection with alert notifications are included to enhance safety and usability, particularly for elderly users. By combining low-cost electronic components, wireless communication, and machine learning-based sound enhancement, this project aims to create an affordable, portable, and intelligent alternative to traditional hearing aids. The developed prototype not only addresses the limitations of existing devices but also provides a platform for further innovations in personalized hearing solutions and assistive healthcare technologies.

Smart hearing aid, Artificial intelligence, Digital signal processing, Noise cancellation, Speech enhancement, ESP32, MEMS microphone

"Smart Assistive Hearing Device with Adaptive Sound Profiling", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.13, Issue 2, page no.b20-b23, February-2026, Available :http://www.jetir.org/papers/JETIR2602103.pdf

"Smart Assistive Hearing Device with Adaptive Sound Profiling", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.13, Issue 2, page no. ppb20-b23, February-2026, Available at : http://www.jetir.org/papers/JETIR2602103.pdf