Hearing Loop
An assistive listening system that transmits sound electromagnetically via a wire loop to the telecoil (T-coil) of a hearing aid or cochlear implant processor, reducing the effect of background noise and distance.
Full Definition
A hearing loop (also known as an induction loop or audio-frequency induction loop system) consists of a wire installed around the perimeter of a room or venue that carries an electrical current corresponding to the audio signal. Hearing aids and cochlear implant sound processors equipped with a telecoil (T-coil) can pick up this electromagnetic signal directly, delivering clearer sound without ambient noise interference. Hearing loops are frequently found in theatres, places of worship, banks, and healthcare settings, and their installation is mandated in certain jurisdictions under accessibility legislation. Editors should note that 'hearing loop,' 'induction loop,' and 'loop system' are used interchangeably in different national contexts; British English favours 'hearing loop' or 'induction loop,' while American usage more commonly employs 'hearing loop.' The international symbol is a stylised ear with a 'T'.
Usage
Usage note: Prefer 'hearing loop' in contemporary patient-facing materials; 'induction loop' is acceptable in technical specifications. Do not confuse with FM or infrared assistive listening systems, which use different transmission technologies.
In Context
- "The patient information leaflet advised attendees to switch their hearing aid to the 'T' setting to use the hearing loop installed in the waiting room." — Healthcare facility patient communication document
- "Although 'induction loop' and 'hearing loop' are interchangeable, the department's house style specifies 'hearing loop' throughout all patient-facing materials." — Editorial style memo