2. BANARAS HINDU UNIVERSITY SCHOOL OF BIOMEDICAL ENGINEERING INSTITUTE OF TECHNOLOGY VARANASI – 221005 INSTITUTES AT WHICH THE WORK IS DONE

3. Plan of Action and Work Distribution 3

4. Cord Receiver 4 Torch Light Vibrator On-off Switch Switch for Torch light Low Battery Indicator Circuit diagram of the prototype

5. 5 Analysis of Hearing Aid Performance using Hearing Aid Analyser (FP-40D) Hearing Aid Analyzer (FP-40D)

6. 6 Closer View of the Final Prototype Torch On off Switch (Hearing Aid) Volume control (Hearing Aid) Angle flex End for Cord Low Battery Indicator Receiver Microphone On off switch for the torch (Orange switch) Socket for charging the battery Socket for Electro Acoustic Evaluations.

7. 7 DIFFERENT VIEWS OF THE PROTOTYPE

8. 8 Trial With The Prototype Trial With Strong Class Hearing Aid Hearing Aid Trial (Prototype & Strong Class Hearing Aid) Hearing Aid Trial (Prototype & Strong Class Hearing Aid)

9. ACKNOLEDGEMENTS 9 The Team Acknowledges Prof. K. P. Singh, Director, Institute of Technology, BHU ; Prof. R. Rangasayee, Director, AYJNIHH, Mumbai and Mr. P.G. Waghmare, Technical Assistant, AYJNIHH for there ideas, encouragement and unconditional support. Our heart felt thanks to the participants especially the children whose smiles kept us going…..