Hearing Aids Inside Out
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About this ebook
* An Introduction To Hearing Aids
* History Of Hearing Aids
* Hearing Loss And Hearing Aids
* Types Of Hearing Aids
* Before You Get Hearing Aids
* Maintaining Your Hearing Aids
* Hearing Aids And Children
* Batteries For Hearing Aids
* Hearing Aids: Policies And Warranties
* Hearing Aids: Just One Or Two?
* Hearing Aids Pain
* All About Open Fit Hearing Aids
* Are Deals On BTE Hearing Aids By Mail Too Good To Be
True?
* Have You Heard Of Beltone Hearing Aids?
* How Phonak Hearing Aids Make Listening Easy
* Siemens Artis Hearing Aids May Be The Solution For You
* The Benefits Of Starkey Hearing Aids
* What To Look For In Inexpensive Hearing Aids
* What You Need To Know About To Compare Hearing Aids
* What You Should Know About Digital Hearing Aids
* Would You Take A Chance On A Cheap Hearing Aid?
* Finding The Right Digital Hearing Aids For You
* Knowing If Your Child Needs Hearing Aids
* Digital Hearing Aids And Other Types
* Differences Between Digital Hearing Aids And Others
* Knowing When It's Time For Hearing Aids
* Do You Have The Proper Hearing Aids?
* Digital Hearing Aids For Older Parents
* Pros And Cons Of Digital Hearing Aids
* Basic Knowledge Of Digital Hearing Aids
* Digital Hearing Aids Versus Analog
* Telecoil Hearing Aids
* Types Of Hearing Aids
* Hearing Aids In Children
* Do You Need Hearing Aids?
* Shopping For Hearing Aids
* Maintaining Your Hearing Aids
* Improvements To Hearing Aids
* Disposable Hearing Aids
* BTE Hearing Aids Deals
* The Importance Of Hearing Aids
* What Does Siemens Have To Offer?
* Where To Find Discount Digital Hearing Aids
* The Popularity Of Behind The Ear Hearing Aids
* Siemens Artis Hearing Aids And Their Popularity
* Why Use Hearing Aids For Dogs?
* BTE Digital Hearing Aids
* Choosing Discount Hearing Aids
* Good Things To Know About Siemens Hearing Aids
* Hearing Aids GA: For A Good Fit
* How Do Hearing Aids Work?
* How Low Cost Hearing Aids Can Change Your Life
* The Variety Of Oticon Hearing Aids
* Choices In BTE Hearing Aids
* The Importance Of Getting The Best Hearing Aid
* Beltone Hearing Aids
* Phonak Hearing Aids
* Siemens Artis Hearing Aids May Be The Solution For You
* Starkey Hearing Aids
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Hearing Aids Inside Out - Jeannine Hill
Out
History Of Hearing Aids
A hearing aid is a device that helps someone who has trouble hearing. Hearing aids today are
electronic instruments that receive and amplify sounds. The first hearing aids are now known
as body worn aids. They are bulky instruments about the size of a deck of cards that are
designed to be carried in a pocket. A wire connects the hearing aid to an earphone. Body worn
aids are seldom used anymore, except occasionally in the case of very severe hearing loss.
The most common hearing aid type today is the behind the ear aid, or BTE. A behind the ear
hearing aid consists of a case that clips behind the ear and is connected directly by plastic
sound tubes to a custom molded earpiece. BTE’s are used for a wide range of hearing losses.
Behind the ear hearing aids generally have a larger battery than other types of hearing aids,
allowing them to be more powerful and have a longer life.
With improved technology and miniaturization of electronics, the next generation of hearing
aids, in the ear or ITE, became possible. These aids fit in the outer ear bowl. ITE’s can be
visible to the casual observer. They are also the largest of the custom made styles, and are
often the most comfortable, cheapest and simplest to use. Smaller that the in the ear hearing
aid is the in the canal, or ITC hearing aid. These aids are usually more expensive than ITE’s,
and are also harder to adjust owing to the small size of the volume wheel. Going even smaller
we find the mini canal, or MC hearing aid. These are the smallest hearing aid you can get that
still have a volume adjustment wheel.
The tiniest hearing aids made are the completely in the canal, or CIC hearing aids. They fit so
deeply into the ear that they require a removal string. CIC’s do not usually have manual
controls simply because of their size.
Combining some of the attributes of the behind the ear and the completely in the canal hearing
aids are the post auricular canal devices. This design physically separates the processor from
the earpiece. The small processor fits behind the ear, while the receiver and speaker portion is imbedded in the earpiece which is placed deep in the ear canal.
Choosing a type of hearing aid is usually making a trade-off between size, price and flexibility.
Page 10 of 10
Hearing Aids Inside Out
The largest hearing aids used today, the BTE’s, are generally the cheapest, most powerful,
easiest to adjust and the most durable. However, they are also the most conspicuous. BTE’s
tend to be the best choice for children, however, owing to their durability and the ability to
replace the earpiece as the child grows. Other types of hearing aids would have to be replaced
periodically when the child outgrows them.
Page 11 of 11
Hearing Aids Inside Out
Hearing Loss And Hearing Aids
It is estimated that more than 28 million Americans are hard of hearing. For most, a hearing aid is the appropriate solution. A hearing aid is a device that helps someone who has trouble
hearing. Hearing aids today are electronic instruments that receive and amplify sounds. The
earliest hearing aids were usually cone-shaped devices that funneled sound towards the ear in
order to amplify it. All hearing aids consist of a microphone or receiver to pick up sound waves and convert them to an electric signal. This signal is then processed and sent to a speaker,
which converts it back to an audio signal. The processing serves to amplify those frequencies
of which the user has trouble hearing.
There two types of hearing loss are conductive hearing loss and sensorineural hearing loss.
Conductive hearing loss occurs when sound waves cannot reach the inner ear and are caused
by something like a buildup of earwax, infection, fluid in the ear, or a punctured eardrum.
Sensorineural hearing loss occurs when there is damage to the auditory nerve or hair cells in
the inner ear. Conductive hearing loss is usually corrected by surgery. Sensorineural hearing
loss is usually corrected with a hearing aid.
Hearing aids are not a perfect solution – they do have their limitations. They will not restore
normal hearing, nor will they eliminate background noise. However, they may be adjusted to
lessen background noise. New users to hearing aids often complain that their voices sound
funny to themselves, and that they are bothered by the relative loud noise from things like
refrigerator fans and traffic on the street outside. However, as they have a chance to adapt to
their new hearing aid, their brain begins to filter out background noises to a more comfortable
level.
Page 12 of 12
Hearing Aids Inside Out
Types Of Hearing Aids
Old style hearing aids are now known as body worn aids. They were relatively large devices
about the size of a deck of cards. Body worn aids are seldom used anymore, except
occasionally in the case of very severe hearing loss. The most common hearing aid type today
is the behind the ear aid, or BTE. A behind the ear hearing aid consists of a case that clips
behind the ear and is connected directly by plastic sound tubes to a custom molded earpiece.
BTE’s are generally more suitable for children, as they are more durable and easier to adapt as
the child grows. The next type of hearing aid is the in the ear or ITE hearing aid. These aids fit in the outer ear bowl and can be visible. They are the most comfortable, least expensive, and
easiest to use of the custom fitted hearing aids. Smaller that the in the ear hearing aid is the in the canal, or ITC hearing aid. These aids are usually more expensive than ITE’s, and are also
harder to adjust owing to the small size of the volume wheel. Even smaller than the ITC’s are
the mini canal, or MC, hearing aid. These are the smallest hearing aid you can get that still
have a volume adjustment wheel. The tiniest hearing aids made are the completely in the
canal, or CIC hearing aids. They fit so deeply into the ear that they require a removal string.
CIC’s
do
not
usually
have
manual
controls
simply
because
of
their
size.
A feature available on many hearing aids is the telecoil. Telecoils allow the hearing aid to pick up magnetic signals and process them as audio signal. Telecoils were originally developed to
help those with hearing aids use the telephone. Older telephone produced fairly strong
magnetic fields in their earpieces, which could be picked up by the telecoil. Modern phones do
not normally produce strong enough magnetic fields, but many phones and other devices are
equipped to transmit to a telecoil anyway. Most users find that the telecoil provides better
sound quality and allow the user to more easily concentrate on the desired sound, despite any
background noise.
Page 13 of 13
Hearing Aids Inside Out
Before You Get Hearing Aids
The first step in getting a hearing aid is to visit an ear care professional to get a full hearing test. The professional will measure several different facets of your hearing, including how well you can hear different tones or frequencies, and how well you can discern speech with various
levels of background noise. You should discuss with your doctor or audiologist whether a
hearing aid is the best solution for you, or whether it is possible to correct your hearing loss through surgery. Next you’ll want to investigate the different styles of hearing aids, and select the one that is right for you, your hearing loss, and your lifestyle. Most hearing aid companies offer a trial period, so don’t hesitate to try more than one aid. You will want to check out what features are available with the different hearing aids. Two features which are especially useful are telecoil and direct audio input. These allow you to use assistive listening devices which can be
purchased
for
your
home
and
are
available
at
some
public
locations.
An important consideration is the full cost of the hearing aid, including batteries and repairs.
Make sure you ask what the warranty covers, as well as what is the length of the warranty. A
person obtaining a hearing aid for the first time will need to take the time to become familiar with their hearing aid. It may be uncomfortable to start, or your voice may sound funny to yourself.
Know how to adjust your hearing aid properly, and be sure to return to your audiologist or
hearing aid dispenser for a proper adjustment if it is not comfortable.
Page 14 of 14
Hearing Aids Inside Out
Maintaining Your Hearing Aids
It is very important to maintain your hearing aid properly. Hearing aids are delicate instruments, and looking after them is vital. You will need to know how to clean your hearing aid by