What is an Infra Red System?
There will be occasions when conditions within a building dictate that users will want to consider an infra red system as an alternative to an induction loop system.
An infra red system consists of infra red radiators and a modulator connected to a sound source, usually the building’s main PA system, in the same way as induction loop equipment. Listeners need to be issued with either personal induction loops (incorporating an infra red receiver) which hang around the neck and induce signal into the users hearing aid or headsets that incorporate an infra red receiver.
Why Infra Red?
An induction loop may not be suitable for every installation; this can be because of the prevailing architectural conditions, the use of electric guitars or, for example, a high content of metal within the building which may interfere with the effectiveness of a loop.
The installation of an infra red system can place less demands upon the building interior and decoration as, in some cases, only a radiator fed by a single cable may be all that is needed to provide audio coverage to the listeners.
Additionally the following points may be considered
- With the recent introduction of wide band infra red systems the sound quality can be close to a Hi Fi standard performance.
- Users can select switchable systems and headsets that can offer stereo, mono or dual channel operation.
- Infra red radiators can transmit over considerable distances; in some cases over 150 metres and so can be made to function in very large buildings.
- An infra red system can serve other users in addition to the hard of hearing such as simultaneous reading transmissions for the blind.