| |
| You may have certain
communication needs that cannot be solved by the use of
hearing aids alone. These situations may involve the use
of the telephone, radio, television, and the inability
to hear the door chime, telephone bell, and alarm clock.
Special devices have been developed to solve these
problems. Like hearing aids, assistive listening devices
make sounds louder. Typically, a hearing aid makes
all sounds in the environment louder.
Assistive listening devices can increase the loudness of
a desired sound (a radio or television, a
public speaker, an actor, someone talking in a noisy
place) without increasing the loudness of the background
noises. This is because the microphone of the assistive
listening device is placed close to the speaker, while
the microphone of the hearing aid is always close to the
listener. |
|
|
|
