Active loop amplifier, in constant current technology with volume compressor for setting up an inductive hearing system.
The inductive transmission of audio signals allows users of hearing aids with a T-coil or inductive receivers, like e.g. the LR-200 to receive audio signals. The wireless transmission is an advantage of inductive hearing systems which makes it possible for the user to move freely within the loop.
Inductive hearing systems are used for various applications, e.g. as a hearing aid for the hearing impaired in churches, theatres, cinemas, waiting rooms and lounges, as interpreting facilities, for lectures in museums, exhibitions, etc.
With inductive hearing systems an inductive loop, made of a wire winding, is laid on the floor, the wall or along the ceiling and is controlled by a constant current amplifier. Thus, a magnetic field is created within the loop which induces a voltage into the T-coil of the hearing aid or into the inductive receiver. In the receivers, this voltage is then converted again into an audio signal.
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