THE DESIGN AND CONSTRUCTION OF THE HEARING AID DEVICE

Type: Project Materials | Format: Ms Word | Attribute: Documentation Only | Pages: 65 Pages | Chapters: 1-5 chapters | Price: ₦ 3,000.00

2,042 marked this research material reliable.
Call or whatsapp: +2347063298784 or email: info@allprojectmaterials.com
THE DESIGN AND CONSTRUCTION OF THE HEARING AID DEVICE
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. Designed equations were employed to calculate the physical parameters of the circuit. After the design, the circuit was constructed and tested on 4 people with partial hearing problem. The result showed that there was a significant improvement in the hearing ability of all the patients tested. The final test showed that the device could prove very useful for people with partial hearing problems. However, the device had no impact on persons suffering from complete deafness. For further improvement, it is recommended that a wireless hearing aid device should be designed and constructed to reduce the weight. The casing of the hearing aid should be made up of more portable, qualitative and lighter plastic material so as to reduce the overall weight and size. During the design, more care should be taken so as to avoid feedback signal between the microphone and the headphone which may result in noisy signal.
CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND TO THE STUDY
Hearing is one of the five senses along with vision, taste, smell and touch. The ear serves asa receiver of incoming sounds. Although the ear receives sound and is the sense organ for hearing, it is the brain and central nervous system that interpret the sound. The human auditory system can generally hear sounds within the frequency range of 20 Hz and 20 kHz but the frequency range between 100Hz and 6 kHz contains most of the information of human voice (Kinsler, Frey, Coppers, and Sanders, 1982). Although the sensation of hearing requires an intact and functioning auditory portion of the central nervous system as well as working ear, human deafness (extreme insensitivity to sound) and hearing loss most commonly occur because of damages of the ear, rather than the central auditory system.
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 (Yusuf, 2015). While some people are born with hearing problem some others develop it as they grow. This problem can occur as a result of disease, aging, and injury from noise or intake of certain medicines (N.I.D.C.D, 2010). Hearing problems could be that of complete deafness or partially impaired type. Hearing problem could occur after a person learned to talk (post lingual) or those with trilingual deafness that is, deafness that occurs before a person learns to talk. Deafness, whatever the degree or course, is generally a source of worry and frustration to the patient concerned as it affects almost all aspects of one’s life.
Hearing loss is usually reserved for people who have relative insensitivity to sound in the speech Frequency range. A hearing loss can happen when any part of the auditory system is not working in the usual way (Oyler, R., Oyler, A., and Matkin,, 1988).
The design and constructed hearing aid device can improve the quality of sound for people with hearing loss. The heart of the circuit is an integrated circuit which amplifies all the signals picked by the condenser microphone and converts them back into sound and sent to the ear. It is a battery-powered electronic device that can amplify sound for people with hearing loss. The amplification function of the hearing aid is made possible with several components; a microphone (input transducer) which picks up sound an amplifier which increases the volume or the sound, a receiver (output transducer) which changes the electrical signal back into sound and sends it to the ear (Lowenberg,1976).
Hearing aids have been available in four styles: body, eyeglass, behind-the-ear (BTE), and in-
the-ear (ITE) hearing aid. Included in the category of ITE hearing aids are in-the- canal (ITC) and completely-in-the-canal (CIC) styles. While body and eyeglass style hearing aids were regularly used 40-50 years ago, they comprise only about 1% of all hearing aids marketed today. Instead, most individuals choose ITE (approximately 80%) or BTE (approximately 20%) style hearing aids. This transition in style, use, and preference is occurring for a number of reasons, including the reduction in the size of the components, durability, and cosmetic concerns on the part of the consumer (Gus and Ruth, 2005).

THE DESIGN AND CONSTRUCTION OF THE HEARING AID DEVICE

Additional Information

  • The Project Material is available for download.
  • The Research material is delivered within 15-30 Minutes.
  • The Material is complete from Preliminary Pages to References.
  • Well Researched and Approved for supervision.
  • Click the download button below to get the complete project material.

Frequently Asked Questions

In-order to give you the best service available online, we have compiled frequently asked questions (FAQ) from our clients so as to answer them and make your visit much more interesting.

We are proudly Nigerians, and we are well aware of fraudulent activities that has been ongoing in the internet. To make it well known to our customers, we are geniune and duely registered with the Corporate Affairs Commission of the republic of Nigeria. Remember, Fraudulent sites can NEVER post bank accounts or contact address which contains personal information. Free chapter One is always given on the site to prove to you that we have the material. If you are unable to view the free chapter 1 send an email to info@allprojectmaterials.com with the subject head "FREE CHAPTER 1' plus the topic. You will get a free chapter 1 within an hour. You can also check out what our happy clients have to say.


Students are always advised to use our materials as guide. However, if you have a different case study, you may need to consult one of our professional writers to help you with that. Depending on similarity of the organization/industry you may modify if you wish.


We have professional writers in various disciplines. If you have a fresh topic, just click Hire a Writer or click here to fill the form and one of our writers will contact you shortly.


Yes it is a complete research project. We ensure that our client receives complete project materials which includes chapters 1-5, full references, questionnaires/secondary data, etc.


Depending on how fast your request is acknowledged by us, you will get the complete project material withing 15-30 minutes. However, on a very good day you can still get it within 5 minutes!

What Clients Say

Our Researchers are happy, see what they are saying. Share your own experience with the world.
Be polite and honest, as we seek to expand our business and reach more people. Thank you.

A Research proposal for the design and construction of the hearing aid device :
Reviews: A Review on the design and construction of the hearing aid device , design, construction, hearing project topics, researchcub.info, project topic, list of project topics, research project topics, journals, books, Academic writer.
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. Designed equations were employed to calculate the physical parameters of the circuit. After the design, the circuit was constructed and tested on 4 people with partial hearing problem. The result showed that there was a significant improvement in the hearing ability of all the patients tested. The final test showed that the device could prove very useful for people with partial hearing problems. However, the device had no impact on persons suffering from complete deafness. For further improvement, it is recommended that a wireless hearing aid device should be designed and constructed to reduce the weight. The casing of the hearing aid should be made up of more portable, qualitative and lighter plastic material so as to reduce the overall weight and size. During the design, more care should be taken so as to avoid feedback signal between the microphone and the headphone which may result in noisy signal... physics project topics

THE DESIGN AND CONSTRUCTION OF THE HEARING AID DEVICE

Project Information

  • CATEGORY : PHYSICS
  • TYPE : PROJECT MATERIAL
  • FORMAT : MICROSOFT WORD
  • ATTRIBUTE : Documentation Only
  • PAGES : 65 Pages
  • CHAPTERS : 1 - 5
  • PRICE : ₦ 3,000.00

Share Links

Download Post
Download Post

Search for Project Topics

Project topics in Departments

Do you need a writer for your academic work?