How do hearing aids work?

Hearing aids can provide the assistance you may need to being able to hear the world around you in full color.

Hearing aids pick up all the amazing sounds around you, they process the sounds and release the signal back into your ear - all instantaneously giving you a rounded 360 degree listening experience customised just for you.


Request a free appointment

The best way to find out if you have hearing loss is to make an appointment at one of our stores. Our specialists will assess your hearing capabilities with a free test and advise you on the potential next steps.

Find your nearest store

The parts of a hearing aid

There are different types of hearing solutions available, but they all have the same five key components:

  1. Microphone. The microphone on the outside of the hearing aid picks up sound from the air as it enters the ear and converts sound waves into digital signals
  2. Microchip. A microchip - a miniature computer that enables our expert Audiologists customise your hearing solution giving you the joy of re-connecting with the world around you.
  3. Amplifier. The amplifier strengthens the digital signals.
  4. Battery. A tiny battery powers the hearing aid.
  5. Receiver. The speaker converts the digital signals into vibrations that then pass through the inner ear to the brain.

Analogue hearing aids

Hearing Aids are available with two types of technology: analogue and digital. Analogue hearing aids, which are not often used now, will pick up the sound, translate it into an electrical signal, amplify it, and then feed it back into the ear.

Some analogue hearing aids can detect whether sounds are loud or quiet and therefore whether they need to be amplified or not. This means that they will recognise that loud sounds, such as traffic, do not need further amplification. This feature is known as "automatic gain control".

Digital hearing aids comprise of much more scientific knowledge and cutting edge Smart technology than analogue aids. They contain a silicon chip comprising of millions of electrical components that continuously process incoming sounds, convert them into clearer and more audible sounds and then release these at the appropriate sound level into the ear so that you can understand them. The forward thinking technology allows the hearing aid to distinguish between sounds that need to be amplified and unwanted noise that needs to be reduced. This differentiation allows you to distinguish similar sounding speech sounds much more clearly.

Due to the pioneering technology, digital hearing aids are customised to work with your degree of hearing loss and personal lifestyle.

The sophistication of the technology used in digital hearing aids enables you stay connected to the world around you and benefit from being able to watch the TV whilst taking part in conversations, locate where sounds are coming from, eliminate whistling and feedback whilst on the phone or hugging someone, and with wireless technology available you can connect your hearing aids to a mobile phone, tablet, TV, computer or stereo system. 

Find out more on digital hearing aids

Explore product range

Explore our product range where the ReSound LiNX² range offers the IIC (Invisible in the ear canal) models in sleek and stylish wearable technology styles.

Request a FREE information pack