dc.contributor.author | Yusuf, M.A. | |
dc.contributor.author | Zainab, U.S. | |
dc.contributor.author | Shehu, I.B. | |
dc.contributor.author | Jibrin, I.H. | |
dc.contributor.author | Abdullahi, S. | |
dc.contributor.author | Adedeji, A. | |
dc.date.accessioned | 2018-01-29T10:25:51Z | |
dc.date.available | 2018-01-29T10:25:51Z | |
dc.date.issued | 2013-08 | |
dc.identifier.issn | 2319-2399 | |
dc.identifier.uri | http://hdl.handle.net/123456789/749 | |
dc.description.abstract | Hearing aid device is a small electronic gadget that is fit in or behind the ear to improve one’s hearing and consequently communication ability.This research work involves the design and development of a hearing aid device withpre-amplifier; an acoustic signal picked-up using a condenser microphone. TDA 2822M IC is configured to produce an audio amplification which is converted to audio signal through a headphone. Design equations were employed to calculate the physical parameters of the circuit. After the design, the circuit was constructed and tested on 5 people with partial hearing problem. The result showed that there was a significant improvement in the hearing ability of all the patients tested. Recommendations were proposed for further improvement. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | IOSR Journal Of Environmental Science, Toxicology And Food Technology (IOSR-JESTFT) | en_US |
dc.subject | Department of Physics | en_US |
dc.title | Design and Construction of Hearing Aid Device | en_US |
dc.type | Article | en_US |