Infra-red audio solutions

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An infrared (IR) sound system consists of infrared transmitters, radiators and receivers. The radiator produces invisible, infrared light from an input source (supplied via the transmitter and captured via a microphone or PA source, for example) that wireless, IR receivers first convert into an audio signal that can be listened to using headphones or connected to a hearing aid via neck-loop. Our Infrared products are ultra sensitive and have the best pick-up and range, they can also be used in conjunction with OEM systems where coverage is poor.

Infrared systems can provide a simple solution where a Hearing Loop is not present or physically possible to install. IR systems can also be used for multiple audio channels, for example a service provider might use their IR system not only for assistive listening, but also for more general audio instruction services or translation.

IR devices require line of sight (less of an issue with Listen’s iDSP receivers) for efficient operation. Strong sunlight can also interfere with the signal.

Physical receivers need to be made available for people with hearing loss to access the signal.

For more information on our products visit Infrared audio solutions or download UP30152-2_ListenIR_App_Notes


IR Receiver Quantity Recommendation

Receiver Quantity Recommendations

There is no exiting legislation that dictates the number of receivers prescribed by the capacity of a venue in the United Kingdom. The Equality Act 2010 only stipulates that reasonable adjustments be made and provision of auxiliary aids and services.

The receiver quantity recommendations below are informed by the precedent set by the ‘American’s with Disabilities Act 1990’, but adjusted downward in many cases to reflect the practicalities of the available charging and storage solutions.

A Neck Loop has been included for each receiver, as the UK has a far higher demographic of hearing aid users than America. Neck Loops make the system more accessible and more likely to be used due to the advantages of allowing users to benefit from aids tailored to their own hearing loss. Users who do not have telecoil enabled hearing aids can use the Neck Loop as a lanyard.

Headphones are generally set at half the quantity of receivers required as users who wish to use headphones will have often brought their own set due to their perception of how sanitary the loaned product will be.

Capacity (up to)ReceiversNeck LoopsHeadphonesChargers
502221 x 4 Port USB
1004421 x 4 Port USB
1506631 x 12 Unit Charging Tray
2008841 x 12 Unit Charging Tray
250101051 x 12 Unit Charging Tray
300121261 x 12 Unit Charging Tray
5002020102 x 12 Unit Charging Tray
10003636183 x 12 Unit Charging Tray
20004848244 x 12 Unit Charging Tray
30006060305 x 12 Unit Charging Tray