How hearing aids work?

Hearing aids are devices that are placed in the ears to improve the quality of sound perceived by people with hearing problems. This hearing solution is indicated for people suffering from hearing loss or hearing difficulties in certain circumstances.

When wearing hearing aids, external sounds are picked up through the microphone and processed to match the person’s hearing patterns. The processed sound is transmitted through the speakers of the hearing aids and is perceived by the wearer clearer and easier to understand.


Which are the right hearing aids for me?

There are several types of hearing aids available in the market, each with its features and benefits.

The type of hearing aid that is best for you depends on your individual needs and the recommendations of your audiologist or hearing healthcare specialist. Some of the most common types of hearing aids are:

How hearing aids work step by step

Hearing aids are not simply amplification devices, but very sophisticated devices that are dedicated to increasing the intensity of sound and enabling the user’s communication and listening.

They are designed to stimulate the ear in order to prevent hearing impairment and ensure the understanding of the speaker.

Below, we describe in detail how headphones work:

  1. Microphones pick up sounds.
  2. The processor chip analyses the sounds.
  3. The processed sound is sent to the amplifier.
  4. The amplified sound is sent to the speaker.
  5. The speaker transmits the sounds to the inner ear.
  6. In the inner ear, sounds are transformed into electrical impulses.
  7. The brain collects the impulses and processes them.

Parts of a hearing aid

All hearing aids have five basic components: microphone (receiver of sound), amplifier, earpiece, speaker (emitter of sound), battery (with battery holder) and a computer chip – programmed according to the individual’s needs.

Hearing aids are composed of three parts: the microphone, the amplifier and the receiver or speaker:

  • Microphone: receives the sound waves of the environment sound and converts them into electrical signals
  • Amplifier: increases and modulates the strength of electrical audio signals and sends them to the ear, amplifying their intensity.
  • Receiver/Speaker: converts the amplified electrical signals into sound and sends it deeper into the ear, reaching the ear canal.

In hearing aid models there may be a difference between the amount of sound captured and the speech understanding. The higher the quality of the hearing aid, the more natural the sound will be, due to the characteristics of bandwidth, automatic volume regulation, noise management and the cancellation of couplings and annoying sounds.

More advanced hearing aids also have a wide range of customization options and can be connected wirelessly to different devices, such as mobile phones.



Hearing aids brands that Audioson works with

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