Hearing Health Blog

The Benefits of Telecoil Technology  

August 5, 2024

Hearing Aid, Hearing Loss

A telecoil, often abbreviated as T-coil, is a small coil of wire installed inside a hearing aid. Its primary function is to detect magnetic fields generated by compatible audio devices. This capability allows hearing aid wearers to directly receive audio signals without relying solely on the microphone. Instead, the telecoil picks up electromagnetic signals, converting them into sound that the user can perceive, thus bypassing ambient noise and enhancing clarity. 

The utility of telecoils extends across numerous scenarios. One significant application is in venues equipped with hearing loop systems. These systems consist of an amplifier, a loop of wire around a designated area (such as a theater or a lecture hall), and a transmitter that sends audio signals to the loop. Individuals with telecoil-enabled hearing aids can then tune into this loop, effectively cutting out background noise and receiving amplified, clear sound directly through their devices. They can “tune in” to the loop by accessing a loop setting, programmed by the hearing healthcare provider. The setting could be accessed by a memory button, app on smartphone, or a remote.  

Using a telecoil reduces extraneous sounds and focuses on the desired audio source, enhancing speech comprehension. Moreover, telecoil technology promotes inclusivity by ensuring that individuals with hearing aids can fully participate in public events, social gatherings, and professional settings where effective communication is essential. 

Despite its benefits, telecoil technology faces challenges related to compatibility and awareness. Not all audio devices and public venues are equipped with telecoil systems, limiting the accessibility of this feature in certain situations. Additionally, raising awareness among hearing aid users about the availability and benefits of telecoils remains crucial for maximizing its potential impact. 

A more antiquated use for telecoils is for landline phones. Typically, with older hearing aids, holding a phone over the hearing aid microphone would cause the hearing aid to feedback, or in other words, squeal. By using a telecoil, the microphone turns off and the telecoil inside the hearing aid amplifies the electromagnetic energy produced by the phone. This allows a hearing aid to amplify the sound of a landline phone without any squealing. While some patients can still benefit from the use of a telecoil, the increased use of smartphones and Bluetooth streaming has reduced the demand for telecoil use.  

Not all hearing aids have telecoils. If you are considering purchasing new technology, this is a worthwhile consideration to make. Typically, adding a telecoil will make the hearing aid bigger, so for some people that is a deal breaker. New technology will continue to evolve and change the way hearing aids communicate with public sound systems. Currently, telecoils and loop systems are the only way for hearing aids to connect to such systems. 

Website with all current looped public places in Iowa.

If you or a loved one need hearing assistance and would like to learn more about how Adaptive Audiology Solutions can help,  please reach out to us at 712-775-2625.