Soundfield I-ceilings Manuel utilisateur

i-ceilings Infrared

Sound Field System

User Manual

What is a Sound Field System?

‘Sound Field’ or a ‘Sound Field Voice

Reinforcement System’ is essentially the

integration of a mini-PA system in the

classroom.

The inclusion of a Sound Field System in the

classroom will raise a teacher’s voice above

the ambient noise in noisy or lively classroom

environments. Sound Field voice reinforcement will

provide even coverage throughout the whole room

without the need to shout or raise one’s voice.

This will provide signicant benets for teacher/

pupil communication and understanding.

Your i-ceilings Infrared Sound Field System

uses the latest infrared and NXT loudspeaker

technology. Please read this manual carefully as

it contains important information on using and

maintaining the performance of the equipment.

The i-ceilings Sound Field System has been

designed with the minimum of user controls. Once

set up by the installer it is very simple and exible

to use. A number of different facilities and variants

may be installed as part of a system depending on

the requirements of particular installations. They

are all covered in this manual but may not all be

included as part of your system.

1) Teacher-worn Infrared Microphone/Transmitter

2) Infrared Microphone Receiver

3) i-ceilings unique Sound Panel Loudspeaker and Integrated Amplier

In many installations the

equipment is installed

above the ceiling

with only the infrared

detectors visible in the

classroom; even the

loudspeaker(s) used in

suspended ceilings look

exactly the same as

the ceiling tiles and are

usually all but impossible

to identify.

• i-ceilings Panel

Loudspeakers are all but

impossible to identify in

the ceiling.

Should you have any problems or queries regarding your i-ceilings

Sound Field System, please contact the system installer or our technical

support department on T: 0115 9770075 or E: [email protected].

The benefits of Sound Field in your classroom

All children benet from the improved speech clarity of a Sound Field System.

Academic improvements are consistently noted in:

The inclusion of Sound Field Voice Reinforcement in the classroom provides wide ranging benets to

mainstream and hard of hearing students, as well as teachers.

• Improved verbal

recognition

• Reduced voice strain

• Attentiveness

• Less repetition required

• Better attendance

• Task behaviour

• Understanding of

instructions

Pupils

• Improved clarity of voice and

understanding

• Reduced voice strain, illness

and stress

• Less repetition required

• Assists inclusive learning for

SEN students

• Reduced loudspeaker theft in

high risk/public areas

In addition to the above

outstanding benets, pupils also

benet from:

• More effective deciphering of

language in early learning years

• Better understanding of

teachers’ voice for ‘second

language’ learning

• Assists temporary hearing

deciency, common in early

learning years

• Assists inclusive learning

• Easily integrates with induction

loop systems

• Proven learning improvements

for pupils with ADHD

• Many children with Down’s

syndrome who have uctuating

conductive hearing loss

perceive signicantly more

speech

Teachers SEN Students

IWM-302 Belt Pack Transmitter

& IT11X Infrared Emitter:-

This system is intended to be used to reinforce the

teacher’s voice. The belt pack can be worn in any

comfortable location, for example clipped to a belt

or kept in a pocket. The infrared emitter must be

worn in a position with a clear line of sight view to

the detectors. The On/Off switch is located on top

of the beltpack; operation is indicated by a green

L.E.D. which turns red when the batteries are

running out and require recharging (see section on

chargers and batteries - pg6).

Sound Field is not intended as a public address

system, rather to reinforce the teacher’s voice to a

clear, yet unobtrusive level. To set the volume level,

use the setting wheel on top of the beltpack. If

you encounter whistling or similar strange sounds

this will almost certainly be caused by acoustic

feedback and will stop if the volume is reduced.

YOUR BELTPACK TRANSMITTER WILL BE CONNECTED TO ONE OF

THE FOLLOWING EMITTER/MICROPHONE OPTIONS:

www.soundeld.uk.com

Using individual pieces of equipment

• Infrared Beltpack • Infrared Emitter

• MC-72X/SL Headset Microphone

• MC-75X/SL Collar Microphone

IT-10+ and IT-11x Emitter:-

IT-10x Emitter is supplied with a microphone

permanently tted. The unit should be worn using

either the tie clip provided or utilising a neck worn

halter. The top of the unit contains the microphone

capsule, it should be worn with the capsule at the

top; 100 to150mm from the users mouth.

The IT-11x Emitter is available with the following

microphone options:

MC-72X/SL Headset Microphone:-

Head worn unit. The microphone boom should

be positioned so the microphone capsule is in the

region of 1 to 2 inches (2.5~5cm) away, but not

directly in front of, your mouth. You may need to

experiment to obtain the clearest sound. Do not

use the microphone without the wind shield.

MC-75X/SL Collar Microphone:-

A lightweight microphone which is worn around

the neck. It is both comfortable to wear and very

efcient. Position the microphone to one side

of your mouth, not directly in front as this will

accentuate breath noise. Do not use without the

foam wind shield as this will also cause breath

noise.

Microphone Transmitters:-

Belt Pack & Hand Held options are available, both

of which are powered by rechargeable batteries.

It is most important to adopt the correct charging

regime otherwise the performance may suffer (a

separate section covers this aspect - see pg6).

All of your microphone transmitters will operate

in any of your classrooms featuring a Sound

Field System. Two different xed frequencies are

available; your installer will have selected the best

combination frequencies for the installation at

the school. If you have been supplied with two

transmitters for use in your classroom they will

have been set to operate simultaneously.* As the

system uses infrared technology, the transmitters

will only work in the classroom within sight of the

detectors. They will not work in the corridors, staff

rooms or other adjacent areas. You should note

that the transmitters require clean line of sight to

one of the detectors to work reliably so care needs

to be taken to ensure a clear path exists which is

not obscured in any way (remember this includes

ensuring infrared emitters are not obstructed by

clothing).

IWH-201 Hand Held Microphone:-

These are intended primarily as a ‘roaming’

microphone for pupil interaction.

Other than an On/Off switch, the handheld

microphone option has no other controls.

Operation is indicated by a green L.E.D., which

changes to red when the batteries are running low

and require re-charging (see section on chargers

and batteries - pg6). You will nd the microphone

is very sensitive, talk in a normal voice holding the

microphone at a distance of 6 to 8 inches (15 ~

20cm) away from your mouth.

Hold in the middle to avoid blocking the emitters

on the bottom of the handheld mic.

*N.B. Only 2 transmitters, one on each frequency

can be used in any classroom.

www.soundeld.uk.com

On both drop-in chargers the ‘charging’ LED will

show red when charging, changing to green when

fully charged.

For the most efcient use of your batteries,

the NC-37 charger also includes a ‘discharge’

feature. To use, drop the beltpack into the charger.

When the LED shows RED, press the discharge

button and the LED will turn to AMBER. Once

the batteries have fully discharged, the unit will

automatically begin to charge; showing GREEN

when fully recharged.

• HC-37 Drop-in charger for beltpack transmitter • HC-20 Drop-in charger for handheld

microphone/transmitter

It is vitally important that the correct regime is adopted with regard to battery charging if the performance

of the system is to be maintained. In normal use fully charged batteries will power the transmitters for

approximately 4 hours. Batteries will re-charge within 1 hour using the supplied chargers.

Charge LED Discharge LED

Battery Charging

1) AV Input Plate

This can be used to connect the sound from a

laptop, CD or DVD player, etc. to your Sound Field

System for even sound coverage throughout the

classroom. The AV sound will work in conjunction

with the microphone signal. The AV input plate

features 2 phono connectors and a volume

control.

Additional Sound Field system facilities:

2) Assisted Hearing Radio Aid Output Plate

This allows hearing impaired students who use a

personal radio aid system to be linked directly to

the Sound Field system, providing greater levels

of voice clarity and a more inclusive learning

environment. The Radio Aid Output Plate features

a 3.5mm 2-pole jack socket and volume control.

Your Sound Field system may also include the following additional features:

Volume Control

2 x Phono Inputs

Volume Control

3.5mm

Jack Socket

For further information on how Audix can help you, contact the sales ofce today on:

01799 540 888 or visit us at www.audixsystems.co.uk

Effective relief for

teachers’ sore throats...

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