Infrared

What is an Infrared system?

An infrared hearing system is an assistive audio system to aid communication with hearing impaired people and is a popular alternative to an induction loop system. A typical system consists of an audio source, an infrared radiator (transmitter) and infrared listening receivers. The added advantage of a Infrared System signal is that it cannot be heard from outside the room ensuring complete privacy, this is unlike an induction loop system which can have overspill that can permeate walls, ceilings, or floors. A further advantage is that there is no loop wire to run around the room so it is easier to install in rooms with multi-levels e.g. theatres, or wide areas e.g. exhibition halls.
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Infrared System Products

The Way it works

An infrared hearing system is an assistive sound system to facilitate communication with hearing impaired people and is a popular alternative to an induction loop system. A standard system consists of an audio source, an infrared radiator (transmitter) and infrared listening receivers. Sound from a microphone, sound system or any other audio source is input to a modulator, which produces an electrical signal containing the audio information.

The resulting electric current in the induction loop produces a small magnetic field. The hearing aid user can pick up this field when they switch their hearing instrument to the T position. The user is then able to hear audible sound very clearly with the background noise significantly reduced, the loop will provide audio to the individual hearing aid user within the magnetic and is designed for one to one communication. This signal is converted to an infrared (IR) signal for transmission via the radiator, the radiator diodes produce the (invisible) infrared light and emits it into the room. Receivers are used to convert the infrared light signal back into an electrical signal and then into an audio signal again (or a personal induction loop if used by a hearing aid wearer). There is no limit to the number of receivers that can be used on a system.

How it can help

An infrared hearing system is an assistive sound system ensuring clear speech is heard from a microphone source directly to the user and works well for both the hearing impaired or those with normal hearing. The advantages of using infrared systems are that signal cannot be heard outside the room unlike an induction loop system as the signal will not permeate walls, ceilings, or floors. This means that each room has total privacy from any other room. There is also no loop wire to run around the room so it is easier to install in rooms with multi-levels is very portable, so ideal for meeting room, theatres, or wide areas such as exhibition halls.

We recommend

Choosing the right loop system does require support from a loop engineer, so we recommend that when looking for a room loop that you contact one of our engineers who will be able to provide an evaluation and advice on the best system and ensure it meets your requirements.

Please contact us by phone or email at

Tel: 01458 272 121
or Email on info@gordonmorris.co.uk