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Most behind-the-ear hearing aids routinely come with telecoil
sensors. These are the hearing aids typically worn by those
with the most profound loss, the very people most needing
hearing assistance. Increasingly, in-the-ear aids also come
with telecoils. One show of hands of Hearing Loss Association
of America convention attendees revealed that nearly all wore
hearing aids with telecoils, as did 75 percent of their members
in a 2002 online survey.
Currently about 90 percent of British hearing aids have telecoils,
as do about half of new American aids (up from an estimated
30 percent in the mid-1990s). Where loop systems are installed,
the percentage of people with telecoils will naturally rise
as they become more useful. (How many people had televisions
before TV stations began broadcasting?)
Even so, a loop system will immediately serve more people,
for two reasons: 1) anyone without telecoils can still check
out portable receivers, as with other assistive listening
systems, and 2) few people in churches, movie theaters, and
auditoriums presently bother to check out the portable receivers.
Where a loop system is installed, nearly all telecoil-equipped
people will use it. With a higher and growing usage rate,
loop systems promise to benefit more people (as well as to
serve their needs more effectively and inconspicuously).
Hard of hearing people who have prioritized cosmetics over
hearing have usually elected invisible "completely in
the canal" aids or inconspicuous in-the-canal aids, which
generally have had insufficient room for the telecoils. Telecoils
are, however, reportedly becoming more miniaturized and can
now be included "in all but the tiniest hearing aids,"
reports audiological researcher-writer Mark Ross.
"Telecoils turn any aid from working
like a Ford into a Cadillac. Telecoils make the difference
whether you hear or not on the telephone....Any place with
a loop system installed--you are golden to hear! And I kid
you not!!!!!!" ~Curtis Dickinson,
Hearing
Loss Help Co.
With the flick of a tiny switch the telecoil-equipped hearing
aid switches from a microphone (M) to a telecoil (T) mode.
Many hearing aids also offer a setting for simultaneous mike
and telecoil (MT). In settings where one wishes both inputs,
the MT setting is useful.
In some cases it is possible to add T-coils to existing hearing
aids, but at greater cost than the minimal cost of T-coils
with original purchase. One's audiologist can advise on cost.
Telecoils
as shown here (courtesy Tibbetts Industries, Inc.), are tiny
additions to hearing aids.
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Mark Ross offers more information about telecoils and their
usefulness with telephones: "The ordinary telecoil (the
'T' coil) is perhaps the most common and most underestimated
assistive listening device available . . . more
. . ." Dr. Ross also envisions a possible future that
harnesses "Bluetooth"
technology. Audiology professor Nancy
Aarts also offers helpful information about telecoils,
as does audiology writer Douglas
Beck. Verizon's explanation of telecoil compatibility
requirements in more and more cellphones (as well as all landline
phones) is nicely explained here.
For additional information visit Hard
of Hearing Advocates.
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