Assistive Technology

  • Induction Hearing Loops -  These devices broadcast through the telecoil (T-coil) in a hearing aid or cochlear implant. The hearing loop transmits sound from a PA system's microphone directly and wirelessly. Essentially, a hearing loop is like WiFi for hearing aids.
  • One-to-one communicators - These devices allow a person to speak into a microphone that sends sound directly to one’s hearing aid. They are especially useful in noisy environments. The speaker also does not have to shout, and the conversation can remain private.
  • Personal frequency modulation (FM) systems - These systems are like radio stations that operate on special frequencies. A receiver worn around the neck transmits sound to the hearing aid. The sound comes from a transmitter microphone used by a speaker, though in many public places, the transmitter is built into the general sound system.
  • Infrared systems - This system is used with TV sets and uses infrared light waves to transmit sounds. The infrared system sends a signal to a receiver worn by the hearing impaired listener, who can adjust the volume. This allows other TV watchers to listen at a volume that is not too loud.
  • Other examples include telephone amplifying devices and direct-audio-input, which allows people to plug their hearing aids directly into an electronic device, like an iPod.
  • Bluetooth adaptors - These systems allow people with hearing loss to hear phone calls more easily, hear sound on T.V.s at a louder volume than others sitting in the same room, and amplify any device that uses Bluetooth technology.

Hearing and Speech AgencyHarry and Jeanette Weinberg Building 5900 Metro Drive Baltimore, MD 21215 410.318.6780