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assistive listening devices


Assistive Listening Devices

In most cases, hearing aids improve speech understanding.  However, in certain situations where hearing aids alone may not be the best solution for hearing loss, Assistive Listening Devices (ALDs) may be recommended. Either on their own or in addition to hearing aids, ALDs may significantly improve your hearing and your success with hearing aids.

ALDs may be most beneficial in the following situations:

To find out if ALDs would benefit you, contact your hearing healthcare professional.

Types of ALDs

  1. Infrared Systems
  2. FM Systems
  3. Telephone Amplifiers
  4. Alerting Devices

1. Infrared Systems

A microphone is placed near the sound source. Using a special converter, sound travelling into the microphone is converted into an invisible infrared signal that is delivered to a headset or earphones worn by the listener.

Best for:

2. FM Systems

The speaker talks into a microphone, often clipped to his/her collar, and the sound is delivered wirelessly to either (a) loudspeakers within the room, or (b) the listener’s hearing aids.

Best for:

3. Telephone Amplifiers

There are two (2) types of telephone amplifiers:

  1. In-Line Amplifiers and
  2. Volume Controlled Phones
A) In-line Amplifiers

In-line amplifiers are small, portable amplifying devices that are connected between the base of the telephone and the cord of the handset. They have adjustable volume controls and tone controls to enhance the bass or treble pitches of the sound.

Best for:

B) Volume Controlled Phones

Volume controlled phones have amplification systems built in. They have adjustable volume controls and tone controls to enhance the bass or treble pitches of the sound. Some phones may also have high volume ringers. They are available in corded (modular) or cordless models.

Best for:

4. Alerting Devices

Alerting devices use a visual (light) or tactile (vibration) signal to alert hearing impaired people to certain sounds. Examples include alarm clocks, doorbells, telephone ringers and smoke alarms that use vibration or strobe lights.

Best for:

To find out what type of Assistive Listening Device would benefit you most, contact your hearing healthcare professional.

 
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