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A well designed and installed hearing loop system sends the audio signal directly to any hearing aid, cochlear implant, or receiver with a telecoil. No background noise, no reverberation, just clear sound.
How hearing loops work
Hearing loop technology, sometimes known as an audio induction loop systems, audio-frequency induction loops or hearing loops, are an assistive listening technology for individuals with reduced ranges of hearing.
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Audio inputs, either from an existing audio system or from dedicated microphone inputs, feed an audio signal into an induction loop amplifier.
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Amplifier
The amplifier drives a current into a hidden loop wire or series of loop wires depending on the design of the system.
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Amplifier
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Inside the hearing aid, a small coil, known as a T-coil (tele-coil or telephone coil), picks up the magnetic field signal, which is then amplified into a high quality audio signal delivered directly to the ear of the hearing aid user.
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As the current flows through the wire it creates a magnetic field in the listening area.
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Watch this short video to see how hearing loops works:
Video courtesy of OTOjOY
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