|
Vocalight* Infrared Sound Field System
The Vocalight* Infrared Sound Field System is
a specialised PA system for the classroom or meeting room. A number
of speakers are placed around the room and when the teacher speaks
into the microphone, his/her voice is sent via infra-red signals
to a receiver which amplifies his/her voice. This wireless PA system
is designed for use in both general and special educational classrooms
to improve classroom or meeting room acoustics.
Benefits of the Vocalight*:
- All students can hear the teacher from anywhere
in the classroom as clearly as if the teacher were only a few
feet away.
- Focus is on the speaker and not the background
noise or echo.
- Up to 30% improved speech recognition.
- Reduced fatigue for students and teachers.
- Increases test scores and class participation.
- Improved attention and behavior.
- Decreases behavioral referrals and teacher
vocal fatigue.
- Provides clarity of sound to all students
and participants.
- Reduces vocal fatigue for teachers and speakers.
Features:
- Uses infrared technology to transmit the teacher’s/speaker’s
voice.
- Unlimited number of Vocalight* systems can
be installed.
- Input power - 30VA
- Output power - 4 watts/channel
- Easy to operate and recharge
- Clear amplified sound
- Two channels
- Typical range is 12.5m
How it works:

Vocalight* Infrared Sound
Field consists of:
Vocalight*
Base station receiver: PE 900R
Body-worn
Transmitter: PE 900T and microphone
Speaker
Configuration of your choice
Option:
Handheld microphone
Factors which play
a part in hindering the development of children's auditory
processes:
- Distance: As distance from the teacher’s
voice increases, the ability to understand speech decreases.
Students who sit in the
back-rows of a classroom and even those
in the middle rows may be missing a great
deal of what the teacher is saying. Rather
than focusing on learning, they may be
straining to hear.
- Noise: Background noise plays a major
part in miscommunication and lack of
understanding in the classroom. It is
difficult for the teacher to be heard over
noises such as children playing in the
playground, squeaking chairs, chatting
students, heaters and fans.
- Echo: Hard walls, high ceilings, glass
windows, and uncarpeted floors all reflect
many sounds which can lead to speech
misunderstanding.
There is no doubt that acoustics
is very important in the classroom with children spending
as much as 45% of the school day in a listening situation.
Teaching
a class of younger children in a room with poor acoustics
is akin to "turning out the lights".
The louder the classroom sound,
the louder the teacher must speak, and the louder the students
will speak to one another. The problem becomes compounded
for children with at-risk characteristics as they ahve more
difficulty understanding and concentrating on what the teacher
is saying.
Why is it so difficult?
If you’ve ever taken
a foreign language class or tried to converse at a loud party,
you know how exhausting
it can be trying to understand someone under adverse conditions.
For some children, however these conditions are more than a momentary
challenge.
Children with Central Auditory Processing Disorder (CAPD) have
difficulty processing and separating language from environmental
noise even though their hearing may be fine.
For those with Attention Deficit/Hyperactivity
Disorder (ADHD), a loud or poor acoustic environment allows for
too many distrcations, making it extremely difficult for them
to focus on the teacher.
The communication connection?
What do many of these children have in common?
Quite often, children with at-risk characteristics have a more
difficult time than most understanding and focusing on what the
teacher is saying.
Good speech intelligibility is crucial for the development of
auditory and language skills in all children. Many remain silent
about the difficulty they are having discerning speech in the classroom.
Children may become confused, or worse - give up. Unfortunately,
until the teacher or a family member begins to take notice of the
real problem, students may be perceived as apathetic or incapable
of learning the material.
_________________________________________________
• Soundfield systems
are not a substitute for a personal FM system for children with
a moderate to profound
hearing loss.
• May not be of adequate benefit
in excessively noisy or reverberant learning environments. In
these environments, room
acoustics should be improved before installation of a sound field
system.
Please note: The information
above is an abstract of and developed from a Phonic Ear Inc,
USA brochure entitled “All about Sound Field, the listening
learning link” 828-6880-109/REVA/1918 102 provided to All
Mod Comms PTY LTD, Printacall by Phonic Ear Inc, USA.
*Trademark of Phonic Ear Inc, USA.
|