Induction loop for hearing impaired people
People with hearing loss in life have to constantly face different sounds in public places. Noise in spacious rooms does not make it possible to disassemble incoming sounds. This problem is solved by an induction loop. It allows you to hear the interlocutor's voice qualitatively, without distorting the external acoustic conditions.
Induction Loop for Hard of Hearing - What Is It?
There are additional devices for people with hearing impairment who have won the trust in many countries.
An induction loop is a device that transmits sound signals( for example, music, telecast, radio notification) without noise to the hearing aid of hearing impaired people.
The built-in induction coil in the hearing aid receives a signal from the system with an induction loop. To do this, switch to the "coil" mode( T).
Basic components of the induction system
- Induction loop for hearing impaired people. What is this is discussed above.
- The induction loop amplifier is an auxiliary device designed tocreate a field of the same name.
- Field indicator intended for installers of induction fields.
- Brackets for installing the device.
Induction systems are installed in concert halls, airports, cinemas, schools, theaters, churches, lecturers, train stations and other facilities. Those who wear a BTE are given the opportunity to communicate with people in public places and receive the necessary information.
Types of systems with induction loop
Induction systems are of two types: stationary professional and for home use, narrowly focused, systems for education, special use and portable.
|Induction system||Area of action, m²|
|Domestic use( stationary)||30-70|
|Portable||up to 100|
Professional induction systems
They are designed for spacious premises( churches, meeting rooms, cinemas,airports) and are characterized by increased power and frequency characteristics.
- high-definition sounds for people wearing hearing aids;
- optimum sound quality in the middle of the induction loop field;
- minimum interference from metal structures in buildings;
- setting of the indicators of the boundaries of the zone of constant signal reception.
The system has the function of automatic gain control, resulting in a stable constant level of field strength with high speech perception in the presence of external disturbances.
They are designed in accordance with the international standard IEK 60118-4.The main difference from other systems is the transmission of a sound signal both in horizontal and vertical directions.
There is a sign that indicates to people with hearing aids that it is necessary to switch the device to the "T" mode( Coil).
Professional induction systems are safe, stable and have a great safety margin.
Systems for narrow use with induction loop
The range of induction systems is about 1.2 m. In such systems, a insole with an induction loop and a microphone are used. They are wireless, and install them in a small room is not difficult. The systems are designed for use in banks, ticket offices, hotels, supermarket ticket offices. They help the hearing impaired people to establish a dialogue with the staff.
Portable induction system
For meetings, conferences and negotiations a portable system with an induction loop is used. To do this, a cable is stretched along the entire perimeter. The innovative device contains an induction loop, a cable, an amplifier and a wireless receiver.
Advantages of portable induction systems
Conveniences from the use of instruments are beyond doubt. These include:
- the presence of a built-in microphone;
- wireless system;
- built-in interface module for connecting audio devices directly to the amplifier connector;
- powered by battery;
- interesting design;
- mobility( the ability to transfer to other premises).
The range of induction loops, depending on the purpose, is huge: from professional use in spacious rooms to compact portable devices. Using systems with an induction loop makes it possible for people with poor hearing to orient themselves in a sound environment with a constant increased noise level.