Technical Resources and Standards
On this page you will find some useful resources provided by industry experts, to help further your knowledge of hearing loop system related topics.
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British and European Standards
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IHLMA Position on Neck Loops and Cardiac Pacemakers
IHLMA recognises a concern expressed by some medical professionals of a potential for interface with cardiac pacemakers from the magnetic fields that exist in very close proximity to the wiring of a neck loop…
The care and feeding of neck loops for assistive hearing
A neck loop is a personal induction loop about 230 mm in diameter, intended to be used with a static or hand-held source of audio signals and transmit them magnetically to the user’s one or two hearing aids equipped with telecoils….
Hearing Loops and Telecoils: When will they become obselete?
The International Hearing Access Committee (IHAC) aims to estimate the time a transition from the existing audio transmission to telecoils via hearing loop (HL) and other assistive listening systems (ALS) to a platform of digital audio streaming direct into hearing aids, will likely take.
Telecoils and Hearing Loops: The most available and accessible assistive listening technology
Assistive listening systems have been widely available since the 1930s, the most successful of which have been the hearing loop and telecoil combination.
A standard is an agreed way of doing something such as making a product, managing a process, delivering a service or supplying materials.
Standards are important because they ensure that equipment from different manufacturers will work together, and that users can benefit from services.
Electroacoustics – Hearing aids – Part 0: Measurement of the performance characteristics of hearing aids
IEC 60118-4:2014+AMD1:2017 CSV (Consolidated Version)
Electroacoustics – Hearing aids – Part 4: Induction-loop systems for hearing aid purposes – System performance requirements
IEC 62489-1:2010+AMD1:2014+AMD2:2017 CSV (Consolidated Version)
Electroacoustics – Audio-frequency induction loop systems for assisted hearing – Part 1: Methods of measuring and specifying the performance of system components
Electroacoustics – Audio-frequency induction loop systems for assisted hearing – Part 2: Methods of calculating and measuring the low-frequency magnetic field emissions from the loop for assessing conformity with guidelines on limits for human exposure
IEC TR 63079:2017
Code of practice for hearing-loop systems (HLS)
ETSI EN 300 422-4 V2.1.1 (2017-05)
Wireless Microphones; Audio PMSE up to 3 GHz; Part 4: Assistive Listening Devices including personal sound amplifiers and inductive systems up to 3 GHz; Harmonised Standard covering the essential requirements of article 3.2 of Directive 2014/53/EU