Article Side

Online Article Directory!

Hello Guest! Login or Register to submit articles!

How Hearing Aids Work

By Kamal A. Elliot Subscribe to RSS | July 4th 2012 | Views:

Hearing aids are basically very small amplifiers. However, with modern digital technology, digital hearing instruments can be very precisely manipulated to customize a specific patient’s hearing loss and hearing lifestyle. Every analog and digital aid has a microphone, a small loudspeaker (receiver), and a battery.

All hearing instruments are powered by a zinc-air battery. Zinc-air batteries are small, button-like batteries with a beveled edge on one side and a flat side. The flat side has a small color coded sticker tab that indicates what size battery it is. Zinc-air batteries are activated by exposure to air. Once the colored sticker tab is removed, the battery immediately begins to drain. Placing the tab back on the flat side will not prevent the battery from continuing to drain. This power allows the other parts (e.g., microphone, receiver, etc.) to work.

Sound enters the hearing instrument through the microphone port(s) on the outer case of the aid. On in-the-ear styles, microphones are usually located around the battery door. On behind-the-ear styles, the microphone port(s) are typically located near the top of the aid where the instrument sits over the ear. Incoming sound waves are converted to an electric signal, amplified, and converted back into an audible sound. The receiver, sitting in the outer ear canal, plays the amplified sound to your ear. If the hearing instrument is digital, a computer chip is also a main component. This computer chip converts incoming sound into digital codes (i.e., strings of numbers). This sampling and coding allows for the sound to be easily modified to suit the individuals hearing impairment.

While modern digital aids are very sophisticated pieces of technology with noise reduction algorithms, feedback (whistling) cancellers, and the like, they are still an amplifier at their core and cannot restore hearing to normal. Sound must still pass through a damaged system, and the brain will need time to adjust to its newfound sounds. Your hearing decreases may have been so gradual that you may not realize all the sounds you have lost. Small, insignificant sounds like the hum of your air conditioner, the noise of the road, the birds chirping early in the morning – your brain will have to re-learn all of these now “new” sounds. Initially, these sounds may seem particularly bothersome, but with consistent wear, acclimation and benefit should increase. Most people will notice an almost instantaneous benefit during one-on-one conversations, in quiet and overall greater ease when listening with their hearing aids.

Kamal A. Elliot - About Author:
Kamal Elliot, Au.D. Doctor of Audiology Dr. Elliot is a licensed Audiologist who earned her Doctor of Audiology degree from the University of Florida and has been practicing since 1994. Dr. Elliot has over 17 years of experience and she brings a wealth of knowledge in audiology and hearing aid services. She is dedicated and committed to continuing to provide quality hearing care to you and the entire Sun City Center, Florida and Hillsborough County community.

Share on Facebook Tweet It Stumbleupon this post This post is delicious !

Article Source:

Related Health Articles Subscribe to RSS

How will the spending cuts affect those who offer learning disability services?
Published by Becky on February 14th 2012 | Health
Many people with disabilities as well as their families and friends are worried that the huge spendi...
It is better to apply for social security disability through an advocate
Published by Thessadvo on March 7th 2012 | Health
The American government has been running various programs for the welfare of disable people....
Social security disability advocates direct you in the time of sorrow
Published by Thessadvo on March 5th 2012 | Health
Social security is defined as government plan that offers economical aid to individuals who are faci...
Skin care specialist- the best person to help get flawless and beautiful skin
Published by Louise Carala on August 25th 2012 | Health
Skin care specialist in Houston is well skilled to treat patients with even the worst skin disease t...
Various options for the treatment of bronchititis
Published by Justin Bieber on August 25th 2012 | Health
Bronchitis is a problem of the chest in which the walls of the bronchial tubes get inflamed. This pr...
Essentials of eye care
Published by Justin Bieber on August 25th 2012 | Health
All our body parts need care for their normal functioning. In the same way our eyes also need care a...
Probiotic Supplements - How to Choose the Best
Published by Marvin Ferris on August 25th 2012 | Health
The leading probiotic supplements are going to provide you with all of the right ingredients. You sh...
Teeth Whitening Manchester - Procedures for Effective Solution
Published by Julia Roger on August 25th 2012 | Health
Coming to the home remedies recommended by Teeth Whitening Liverpool service providers, using orange...
Spiritual Coaching- Get Enlightened with the Help of a Spiritual Coach
Published by Julia Roger on August 25th 2012 | Health
The main motto of spiritual coaching is to tune a person into the spiritual expedition. A spiritual ...