Hearing Aids Delhi


Hearing aids are tiny in size but mighty in sound – but where does all that sound come from? Beyond their shiny shells, hearing aids have tiny computers working tirelessly to give you the best sound possible. Making up this electronic hearing wonder are 5 key components. Here’s how they work.

Main Parts of a Hearing Aid

It all starts with a microphone. The hearing aid microphone picks up incoming sound and sends it to an amplifier, which processes the sound by turning it from an analogue signal into a digital signal. This is then sent to the receiver which the delivers the sound to your ear in a way that is most true-to-life.

More on these 5 hearing aid parts:

  • MICROPHONE : The microphone helps the hearing aid to pick up sounds from outside the ear. There are different types of microphones, both omnidirectional (sensitive to sound from all directions) and directional (sensitive to sound from specific directions).
  • MICROCHIP : The chip is the nervous system of the hearing aid. Despite its micro size, the chip is incredibly powerful and can handle everything from signal processing to wireless communications. The chip means that hearing aids can be smaller and use less battery power.
  • AMPLIFIER : The amplifier processes and strengthens the sound signal from the microphone and customizes it according to your individual needs and your hearing loss. It makes the sounds you hear recognizable without being distorted. The amplifier contains most of the hearing aid’s electronic components and circuits in a microchip.
  • RECEIVER : The receiver or speaker converts the electrical signal into sound and sends it to your ear. How much sound comes out depends on its size. A severe hearing loss will often require a slightly larger hearing aid. Receivers also come with wax guards that help to keep moisture and earwax from entering the hearing aid.
  • BATTERY : The engines of the hearing aid, batteries keep the whole thing running. How much power a hearing aid uses varies widely depending on its size, the number of features and the ways in which it is used.

Hearing Aid Features

Many hearing aids have more than just five main parts. These features can include:

  • Telecoil - A telecoil is a small coil inside your hearing aids. The coil works as a small receiver which picks up signals from a loop system that acts as an electromagnetic field. Hearing aids with an activated telecoil can convert this electromagnetic field into a sound signal. Only the signal from the loop system’s microphone is amplified, and background noise is shut out.
  • Audibility Extender – The Audibility Extender helps people with high frequency hearing loss to hear upper frequency sounds by moving these sounds to a lower frequency region where it is easier to hear them. The upper frequency sounds are important for hearing the “softer” sounds like /s/ and /t/ in women´s and children´s voices and high-pitched sounds like the “ping” of the microwave.
  • Speech Enhancer – The Speech Enhancer is different from simple noise reduction systems in that it doesn´t just dampen noise – it also amplifies speech. When we listen to a sound, we are rarely in doubt as to whether it is speech or noise. The Speech Enhancer in modern hearing aids is able to distinguish the two in much the same way as our brains do – by using the fact that speech consists of a number of varying sound components that follow each other at brief intervals.
  • Feedback Cancellation – Feedback Cancellation is a feature that aims to eliminate the whistling and howling caused by a microphone and speaker being too close to one another. With hearing aids, feedback whistling occurs when amplified sound from the ear canal leaks back to the hearing aid microphone. With less modern hearing aids, a whistle or squealing sound from someone’s ear could give a clear sign that they were wearing a hearing aid.
  • The compressor – The compressor in a hearing aid is the feature that adjusts gain according to the current sound environment and the client’s hearing loss.
  • Wireless communication – At Widex, we have developed our own technology to ensure that your hearing aids can communicate with each other – and with your TV, mobile phone or other devices.


Cleaning CIC hearing aids

Some CIC hearing aids have a special short vent tube with an opening near the sound outlet. Follow these steps to clean it:

  • Remove your hearing aid’s battery
  • The wax-removing tool for a Widex CIC hearing aid has a long and a short end. There is a tiny ball at the tip of the longer end, which is used for clearing this vent.
  • Insert the long end of the wax-removing tool into the opening of the vent near the tip of the hearing aid.
  • Turn the hearing aid so that the open battery drawer is facing downwards, and allow any earwax to be pushed out through the hearing aid.
  • Use the short end of the wax-removing tool to remove any wax that has accumulated around the microphone opening on the battery drawer.
  • Guide the short end of the wax-removing tool through the microphone opening on the battery drawer from the inside.

Cleaning your hearing aid wax guard

A wax guard is a special type of filter that is placed in the sound outlet. The filter helps to prevent wax and dirt from entering the sound channel. If your hearing aid has a wax guard, it is important to remove any wax or dirt that has accumulated around it. Use the soft cloth or small brush for this purpose.

Some people produce more earwax than others, so the amount of times your wax guard needs changing will vary.

NOTE: Even with careful cleaning, wax and dirt can become lodged in the hearing aid and cause it to malfunction. This can make your hearing aid sound weak or distorted. If this happens, return your hearing aid to your hearing care dispenser for service.


Cleaning CIC hearing aids

WIDEX DRY-GO UV helps your hearing aids perform at their best. The easy-to-use DRY-GO UV dries and sanitizes hearing aids and earmoulds in just 3 hours. Daily use results in improved acoustic performance, better reliability, and better ear hygiene.

The energy efficient drying station includes a travel case and can be powered by a standard outlet or USB for greater portability. With the new DRY-GO UV, you can protect your hearing investment and enjoy greater peace of mind.