Assistive Listening Devices

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I. Definition-

.......products that are designed to ________ one or more specific listening problems created by a ________

II. Senses - to be used by ALD's

A. Vision-

________ lights

Written Text

B. Audition-

Alarms-increased intensity of the signal

________ frequency signals

Amplify the signal

C. Taction-

________

Blowing Air

III. Devices-

Two main types:

Those which improve ________

or

Those which alert the user to auditory information

A. Telephone -
Need to Improve S/N Ratio

1. Handset amplifier-built-in or portable

2. ________ phone

3. T-coil on HA if ________ has electromagnetic field (________ has it, gray does not)

4. Relay service 1-800-735-2989

5. TDD- telecommunication device for________

6. T-coil adapter- creates stronger ________ field, still need t-coil

7.     Portable amplifier- doesn't need ________

Other Phone Options for Alerting Purposes:

-Flashing lights for phone ringing

-________ signals for ringing

-Alternate ________ for ringing

arrangement (i.e., adapter vs t-coil vs mic of HA).

B. Radio/TV-
Need to Improve S/N Ratio

1.  Closed captioned TV device

2.  Hardwire amplifier with ________

3.  ________ system

4.  FM systems

5.  Induction ________

6. TV ________ radio

C. Alerting devices

1. Flashing ________ alarms

2. Sonic alarm- monitors up to 5 different sounds & gives associated signals via lights on ________

3. Flashing lights for phone/ ________/ alarm clock

4. ________ for alarm clocks or flashing time on ________

5. intercom for people with a ________ loss that want to hear from another room

6. hearing ear ________

IV. Obtaining ALD’s

A. Process

1. Assess the need during the Hearing Aid Evaluation

Consider every patient a ________

2. Conduct ALD Evaluation (p. 542, table 13.12)

Ideally have an ________ Center

3. Dispensed as part of the Hearing Aid Fitting (p. 542, table 13.13)

________ with the hearing aid if necessary

4. Followup during ________ with ALD

Patient may return for partial credit

B. Cost of ALD’s

1. Vibrating Alarms-$25

2. Sonic Alert-$________

C. Evaluation of ALD’s

1. ________ Assessment just as important as with hearing aids

2. ANSI standard for measurements still being developed

3. ________ evaluation necessary

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