![]() ![]() For those who don’t have hearing aids with embedded telecoils, portable loop receivers are also available.Ī telecoil, also called a t-coil, is a coil of wire that is installed inside many hearing aids and cochlear implants to act as a miniature wireless receiver. A hearing loop can be connected to a public address system, a television, or any other audio source. ![]() Some loop systems are portable, making it possible for people with hearing loss to improve their listening environments, as needed, as they proceed with their daily activities. Because the sound is picked up directly by the receiver, the sound is much clearer, without as much of the competing background noise associated with many listening environments. To pick up the signal, a listener must be wearing the receiver and be within or near the loop. A receiver worn in the ears or as a headsetĪmplified sound travels through the loop and creates an electromagnetic field that is picked up directly by a hearing loop receiver or a telecoil (see sidebar), a miniature wireless receiver that is built into many hearing aids and cochlear implants.A thin loop of wire that encircles a room or branches out beneath carpeting.A sound source, such as a public address system, microphone, or home TV or telephone.A hearing loop system involves four parts: Hearing loop (or induction loop) systems use electromagnetic energy to transmit sound. This logo informs people that a public area is looped. ALD systems for large facilities include hearing loop systems, frequency-modulated (FM) systems, and infrared systems. ![]() All can be used with or without hearing aids or a cochlear implant. Other types are intended for personal use in small settings and for one-on-one conversations. Some are designed for large facilities such as classrooms, theaters, places of worship, and airports. Several types of ALDs are available to improve sound transmission for people with hearing loss. What types of assistive listening devices are available?
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