A wired personal ALD like the Pocket Talker is intended to facilitate
conversation between a person with hearing loss and a normally hearing
person. It consists of a processor about the size of a small transistor
radio, a microphone that connects to the processor, and an output device
that also connects to the processor.
The hearing person speaks
into the microphone, and the person with hearing loss uses the output
device to improve their speech comprehension. The output device may be a
pair of headphones that the hard of hearing, late deafened, or oral deaf
person wears, or it may be a wire with a jack that plugs directly into a
hearing aid or CI.
Some of these devices may be configured for multiple speakers, but
they are primarily intended for one-on-one situations.
Personal FM systems are intended to provide improved speech
comprehension to a single listener. They are similar in concept to a
Pocket Talker, but are much more flexible, because they are wireless.
They work much like a radio station; one part (the transmitter) accepts
microphone input and transmits the electronic equivalent of that sound
into the air; the other part (the receiver) receives the electronic
signal and provides the acoustic equivalent to the listener. Because
these systems are wireless, they provide more flexibility than the
Pocket Talker. Typical uses include:
At a lecture, give the speaker the transmitter & a lapel
microphone, and hear every word of the lecture, even if the speaker
turns to face a chalkboard or looks down at some papers.
At a restaurant, put the transmitter on the table, and pick up the
voices nearest the microphone no matter where you sit at the table.
In a meeting, listen to a speakerphone conversation, by placing the
transmitter next to the telephone speaker.
At church, plug the transmitter into a spare output jack on the sound
mixer board (cable is $4 at Radio Shack), sit anywhere in church, and
get a nice clear signal without any reverberation or fuzziness.
In a car, converse using the same setup as for a lecture.
At home, plug the transmitter into the headphone jack of a boombox to
listen to the radio, tapes, or CDs in any room in the house.
February
2004 - Here's a great article on FM systems
by Dr. Mark Ross.
January 2010 - Personal FM
Systems for Adults
Some people have reported that wireless headphones work very well for
listening to TV. They are available in FM or Infra-red, and not all that
expensive (starting around $50.) Input can be through a plug (which
requires that the TV have an audio jack) or through a microphone placed
near the TV speaker. The plug is better, if your TV has an audio jack.
More on this and related
topics
Editor: Joe Marin recently posted an email that described the devices
he uses for television viewing and in movies and restaurants. He was
gracious enough to allow us to share his comments with you.
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MOVIES
When I go to the movies, which I do often, I use an IR Receiver --
like the Williams Sound RX3, $79.99. This will accommodate earphone,
neckloop, etc. What happens is that the sound comes on like gangbusters
-- 10,000 Watts of WWII. Then I take my H/As out. Sound goes way down.
Then I use an IR Receiver (I use the TV Ears IR Receiver -- good hi
freq) and the sound is down some (my ears are plugged up) and most words
are now intelligible enough to follow the movie. Ask the theater manager
to turn down the sound? Yeah, sure. Not even for Nanette. Last REALLY
good movie -- Traffic.
RESTAURANTS
I take out one H/A and use the Williams Sound Pocketalker PRO --
$149.99. I just put it on the table. It helps me tremendously simply
because it's a foot or so nearer the speaker. But, for OUTBACK (I love
steak), forget it. It's too damn loud. I have to get the PRO mic near
someone's tonsils. Best restaurant -- Black Angus, lots of padding.
TELEVISION
There is nothing...NOTHING, to compare with listening with an FM
system using the Chaparral dB50 receiver with 50dB high frequency gain.
Tunable over the whole 72-76 MHz ALD band -- $39.99 Receiver only.