Hearing Aids Give You Back Your Hearing
Hearing aids, which utilize extremely advanced technology and provide
elevated benefits to people suffering with hearing loss. Hearing Aids are designed to
help the person who suffer from hearing loss to have greatly improved hearing.
There are two types analogue or digital, depending on how the sound is
amplified. Digital are similar to analogue that they both have a microphone
which collects the sound waves in the air and converts them into electrical
energy. This electrical energy is amplified and fed into a small speaker which
converts the amplified electrical energy back into sound waves to feed into the
ear channel to energise the eardrum.
Digital Hearing Aids differ
from analogue in that the amplifying part of the process is carried out
digitally, which converts it into 'bits' of data by a tiny computer type chip
in the Hearing Aids. These
'bits' which represent the sound are then analysed and manipulated by a process
called Digital Signal Processing. Software is then used to carry out precise
changes to the `bits` of information such as reducing the amplification of
background noise. These electrical bits of information are then fed to a minute
microphone and converted back into sound, which is fed into the ear channel to
act on the eardrum.
The hearing loss can be very
different in sufferers so it is most important that the digital hearing aids is
configured exactly to compensate for the individual. The first step in
providing the correct aid is to find out what particular hearing loss the
sufferer has. A hearing test should be carried out by an audiologist who will
determine the level of hearing over a wide range of frequencies and produce as
audiogram - a chart of your hearing responses. With these results the digital
hearing aids can be set up to compensate for the loss of hearing in particular
areas. It is also possible the hearing aids may be set up just to allow the
sufferer to hear voices and restrict any other sounds etc.
Some Digital Hearing Aids have
also a built in circuit that will protect your ear from very loud sounds which
could cause damage. Others also have facilities for suppressing Tinnitus in the
ear.
It can be seen that a
Digital Hearing Aids will help with hearing loss giving greater control of what
can be heard and what is not wanted. However it is most important to understand
that no hearing aids will give you back normal hearing and also it will take a
little while to get used to the new sounds reaching the ear
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