The way an Induction Loop works is quite simple:
- A sound source, such as a voice, TV, cinema sound system or other audio system is captured using a microphone or via a line out connection.
- The sound signal is then connected to an Audio Induction Loop Amplifier which generates a current to pass the signal to an induction loop, usually made of copper tape or wire.
- The copper wire induction loop (usually) surrounds the area where the listening audience is located and produces a magnetic field.
- The magnetic field is picked up by the Telecoil (or T-coil) inside the hearing aid of hearing impaired members of the audience.
- The hearing aid tailors the sound to the specific needs of the individual. Sound is delivered directly into the ear canal, without background noise and with the full spectrum of sound frequencies required for intelligibility.