Hearing aids

Hearing aids


What is a hearing aid?

Hearing aids work by capturing sound, making it louder then sending it down the ear canal, through the middle ear to the inner ear where the hearing nerves are.

Who can they help?

Hearing aids are most helpful to people with mild to moderate hearing loss that may have been caused by:

  • damage to sensory cells in normal aging
  • exposure to loud noise
  • reactions to drugs
  • head injury
  • genetic factors (inherited from a family member).

How do they work?

Hearing aids make sounds louder. There are many types and styles of hearing aids to choose from, but all have similar parts:

  • A miniature battery that powers all parts of the hearing aid.
  • A microphone that picks up the sound signal.
  • An amplifier that makes the signal louder.
  • Some hearing aids have a digital processor that might help cancel out feedback (whistling) or change the sound to make it sound better
  • A speaker that sends the amplified sound into the outer ear.

With the help of a hearing specialist, you can have a hearing aid custom-made to:

  • your level of hearing loss
  • the shape of your ear,
  • common sound settings such as the classroom, restaurant, listening to music, etc.

What are the benefits of a hearing aid?

Many people with hearing aids report that they:

  • help hearing and understanding speech better in most situations.
  • allow better participation in group situations and meetings.
  • hear soft, gentle sounds they may not have heard for years

What about when my hearing gets worse?

Special equipment is available that interfaces with common acoustic devices or environments to optimize your hearing experience. These assistive listening devices (ALDs) can be used with some types of hearing aids, or with Cochlear Baha, Nucleus or Hybird devices. Many can be used independent of these hearing devices for people with normal hearing or mild hearing loss. ALDs can help with the following scenarios

  • telephone conversations – ALDs can be attached to telephones to make sounds from the speaker louder, or can be connected directly or wirelessly (using T-coil) to Cochlear hearing products
  • listening to music – ALDs can connect music players or even sounds in specially-equipped theraters directly to Cochlear hearing products.
  • watching TV
  • classroom lectures
  • hearing public address systems
  • and many other everyday situations