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How Hearing Aid Coils Work
Role of hearing aid coils.
Release time:
2022-09-07 11:48
Role of hearing aid coils.
To make it easier for hearing aid users to answer telephone calls, in addition to a microphone, hearing aids are usually equipped with a telephone induction pickup (pickup coil), which is used to pick up the audio induction signals from the telephone. This is an induction coil made of thin insulated wire. When the electric current in the phone drives the phone headset to produce sound, the current also creates a changing magnetic field around the phone headset. If the telephone pickup of the hearing aid is in this magnetic field, it can sense the waveform and audio signal that corresponds to the sound and amplify it for the wearer.
Hearing aid coilsInduction coils are devices used in hearing aids to receive magnetic signals. When an alternating magnetic field is present in the surrounding environment, the coil can sense this magnetism and generate an electric current, which is then converted into sound by the receiver and transmitted to the human ear.
Hearing Aid Coils in Hearing Aids Deaf Education - An inductive coil looks like a coil of wire wrapped in thin copper wire. It is fitted in most behind-the-ear hearing aids and a few in-the-ear hearing aids, and is denoted by the symbol t.
When the input selector switch is set to the T position, the coil takes over the microphone's pickup function for deafness treatment, picking up and amplifying a specific RF-modulated speech signal.
However, it must be used in conjunction with a loop system laid out for the hearing impaired in theaters, churches, schools, etc.
The receiver converts it into sound and transmits it to the human ear. Hearing aid coil - chip inductor is an essential electronic component in hearing aids.
How does a hearing aid coil - chip inductor work in a hearing aid?
In the presence of an alternating magnetic field, switch to the induction coil operating mode (high-end hearing aids will automatically recognize this, if there is no induction device, you need to manually turn it on), the patch inductor coil will recognize the magnetic signals in the surrounding environment and amplify them to the same size as the electrical signals, so as to convert them into sounds that can be recognized by the human ear. The stronger the magnetic signal, the clearer and more realistic the sound you hear.
Effect of magnetic fields on hearing aid coils - inductive coils
Some hearing aid users with severe hearing loss may find the sound a little too weak for their hearing loss when using inductors to make phone calls.
To improve this, hearing aid users can attach a magnet to the handset of their telephone or cell phone to enhance the magnetic field of the telephone device and improve the hearing of inductive phones.
The relatively small number of signal transitions in a hearing aid coil-inductive coil results in less sound distortion, a greater signal-to-noise ratio, and more comfortable listening.
3. Popularize the science. Which hearing aids on the market have inductive coil function?
Behind-the-ear hearing aids
Behind-the-ear hearing aids are large, simple to operate and easy to install inductive coils.
Some customized hearing aids
Some ITEs and ITCs have the option of inductive coil function, while CICs generally do not have inductive coil function due to their small size.
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