What is a T coil?
by Rachel Ersoff, AuD.
This is going to be a technical post today, discussing a particular aspect of hearing aids called a “T coil” or “telecoil.” Physically, it is a small copper coil that is an option on most hearing aids. The smaller the hearing aid, the less likely it is to have a T coil. Originally they were used to boost the magnetic signals from a landline telephone. Now they are also useful for “looped” public spaces. The T coil picks up the signal from the performance, sermon, or talk and sends it directly to the ears with an electromagnetic signal. This is very useful technology for people with hearing loss, because the sound does not have to travel over the distance of the audience before it hits your hearing aids. In order for the T coil to work, the room must be “looped, “or have a loop system installed around the perimeter in order to create the electromagnetic field. Some local looped buildings are the Lensic Performing Arts Center, Popejoy Hall, and the Santa Fe City Council Chamber. For a comprehensive list of looped buildings in New Mexico, visit http://www.loopnm.com/Venues.html. There are looped facilities all over the world, so if you like to travel, know this international sign for telecoil access:
The telecoil is activated by a button on the hearing aid. If you are not sure if you have a t coil, or would like yours activated, call to make an appointment at SWENT Hearing and Balance Center (505)946-3947.