Hearing aids are
available in several styles. During the hearing aid consultation the style of
hearing aid will be recommended based on the type and severity of your hearing
loss, as well as your feelings regarding physical comfort and cosmetic appeal.
Completely in the
hearing aids are the smallest of all the styles
available today. They fit
completely into your ear canal and are virtually unnoticeable to other people.
CIC hearing aids are the least powerful due to the small size. This style of
hearing aid is appropriate for individuals having a mild to moderate hearing
In the Canal
(ITC) hearing aids are smaller than ITE styles, but larger than
CIC styles. They
fill roughly half of your ear, whereas the ITE styles usually fill the entire
ear. ITC styles are usually visible to other people if they are looking
directly at your ear. They are large enough to offer features such as a
directional microphone, volume control, program button, and telephone switch.
This style is appropriate for individual having a mild to moderately-severe
In the Ear
aids are the largest of the styles that fit in your ear.
They fill the entire
ear. ITE hearing aids are more powerful than ITC or CIC styles. They are large
enough to offer features such as a directional microphone, volume control,
program button, and telephone switch. This style is appropriate for individuals
having a mild to severe hearing loss.
hearing aids have a main shell section, an earmold
and a connecting tube. The
main shell houses the circuitry and lies behind the ear.They are large enough
to offer features such as a directional microphone, volume control, program
button, and telephone switch. This style is
appropriate for individuals having
a mild to profound hearing loss.
Open Fit BTE hearing aids offer
the same features and style concept as
a standard BTE but with very thin tubing
connecting the main shell and the ear piece. This style of hearing aid gives
the Audiologist flexibility in choosing the type of earpiece option that would
be most appropriate. Some open fit BTEs house the receiver in the tubing
portion that enters the ear canal. This style is appropriate for individuals
having a mild to severe hearing loss dependent upon the type of ear piece
aid technology has significantly improved over the past 10 years. Today’s
advanced hearing aid technology provides convenience and ease of use, as well
as improved speech understanding and comfort.
Noise Reduction: The hearing aid is able to analyze the signal coming into
the hearing aid and determine a speech signal versus noise. If the most
dominate signal is considered noise, then the hearing aid will reduce the gain.
Feedback Cancellation: Feedback has been troublesome for individuals in the
past and can be embarrassing, as well as frustrating. In today’s hearing aid
technology there is a fast acting automatic feature that detects the feedback
and cancels it before it can be heard by the user, unless the feedback is due
to a poor fitting device.
Microphones: Directional microphones are used to reduce sounds from behind
or to the side of the listener when a speech signal is present in front of the
listener. More advanced hearing aids have automatic directional microphone
modes. This means that the hearing aid will continuously search the listening
environment for a speech signal and reduce the gain of noise. Not available in
CIC hearing aids.
Signal Processing: Digital signal processing has replaced the analog signal
processing. Digital signal processing enables manufacturers to include more
programming due to the reduced size needed. This type of processing analyzes
all sounds and classifies incoming signal (speech vs noise vs music).
ASSISTIVE LISTENING &
An assistive listening or alerting device is any device that helps an individual function better in their daily
communication situations. They can be used with or without hearing aids to
overcome the negative effect of distance, background noise, poorly
amplified telephones, or poor room acoustics.
Personal and Sound field FM Systems The
personal FM system includes a transmitter microphone used by the speaker and a
receiver used by the listener. The receiver transmits the sound to your hearing
aid through a direct audio input or through a cord worn around your neck. Sound
field FM systems have the same components as the personal FM system, but the
receiver is used for all listeners within the area. In larger areas, the
microphone and transmitter is built into the overall sound system. FM systems
are useful in various situations such as in classrooms, restaurants, meeting, theaters,
places of worship, and other large areas.
Induction Loop Systems An
induction loop wire is installed into a facility and connects to a microphone
used by the speaker. While the speaker is speaking a current is produced in the
wire which creates an electromagnetic field in the room. When you switch your
hearing aid to the telecoil setting, your hearing aid telecoil will pick up the
devices are used to help individuals become aware of a certain situation, some
which may be an emergency. There are several devices available on the market for
the telephone, TV, and alarming systems. Dependent upon the individuals need
these devices may amplify sounds, flash a light, and/or vibrate.
Hearing loss caused by prolonged or sudden noise exposure is
called Noise-Induced hearing loss. This type of hearing loss is preventable. There
are a few precautionary measure that can be taken to reduce the chances of
noise-induced hearing loss. If there is a source of loud sounds walk away or
avoid loud situations. Audiologists are encountering more and more teenagers
entering their offices with hearing loss caused by loud levels set on their
music players. Individuals need to remember to turn down the volume from their
personal music players because the receiver is very close to the eardrum. Another step that can be taken is hearing
protection devices. Custom ear plugs can be made by your Audiologist that fit
your ear specifically. The type of hearing protection chosen depends on the
environment and communication ability necessary.
Hear Now http://www.sotheworldmayhear.org/hearnow/
Department of Death and Hard of Hearing http://www.vddhh.org/
Your Hearing? Ask an Audiologist http://www.howsyourhearing.com/index.html