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Infra~Hear - Infrared assistive listening system
The Current Thinking
range of Infrared assistive listening units
transmits audio to neck loop receivers or headphones
using infrared light, providing high quality
wireless secure hearing assistance for applications
such as schools, courts and cinemas

Were Do I Need Assistive listening
Devices?
Facilities for the hard
of hearing are required by both the building
regulations document M and by the DDA (Disabled
Discrimination Act) in places where the public need
to hear information, or where customers are
separated from staff by a glass partition (for
further details see our guide to Induction Loops).
An Induction loop amplifier will satisfy the
requirements of both pieces of legislation with the
minimum of fuss, and without the need to hire and
maintain receivers.
How Does It Work?
An Infrared transmitter
takes audio from microphones and other audio
sources, such as mixing desks and CD players and
processes the audio using a compressor limiter to
ensure that the sound has a fixed dynamic range (so
quiet sounds are amplified and loud sounds are
attenuated to prevent amplifier overloading). The
processed sound is then passed to an output stage
which converts the audio to a frequency modulated
infrared light beam. This light then passes to
dedicated receivers worn by the user. This receiver
converts the light to either audio for headphones,
good for people with hearing loss who do not have a
hearing aid, or to an induction loop coil for users
with T coil equipped hearing aids. |
At A
Glance
With
the Infra~Hear assistive listening system,
audio is converted to a frequency modulated light
beam.
This
light is captured by dedicated receivers and turned
back to audio, driving either headphones or an
induction loop coil giving local AFILS coverage.
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