Hearing Aids Overview
Understanding the Parts of a Hearing Aid
Hearing aids are designed to pick up and amplify sound from your environment. These sounds are analyzed and processed into clear sound signals which are then received by your ears and brain. Hearing aids come in many different models, but all hearing aids share the same common components:
- Microphone: picks up sound;
- Amplifier: a computer able to process huge amounts of acoustic information, enhancing sound in complicated listening environments.
- Receiver: sends amplified sound into ear.
- Battery: provides energy supply.
Beyond this, hearing aids will have different parts based on the style.
Types of Hearing Aids
Depending on your degree of hearing loss and your personal preferences, there are several different hearing aid options available. They are categorized by the style in which they are worn. Here are the five main styles of hearing loss.
- Receiver-in-canal (RIC)
- Behind-the-ear (BTE)
- In-the-ear (ITE)
- In-the-canal (ITC)
- Completely-in-canal (CIC)
RIC hearing aids are more visually discreet than BTE hearing aids but differ only in how sound is delivered. True to their name, RIC hearing aids position the receiver in your ear canals, while a discreet casing holds the electronic components sit behind the ear.
BTE hearing aids comprise of two parts – a discreet casing that sits “behind the ear” and houses the electronic components of the hearing aid, and a clear plastic tube that fits into the ear, delivering sound. BTE hearing aids treat mild to profound degrees of hearing loss and are valued for their flexibility. Their slim silhouettes behind the ear also offer a nice level of discretion.
ITE hearing aids are perhaps the most familiar type of hearing aid. These are the models that sit on the surface of your ear and are visible. Larger in size than ITC or CIC hearing aids, ITE hearing aids are easy to control and a preference of people with dexterity issues. ITE hearing aids are designed to treat a wider range of hearing loss, from mild to severe degrees.
ITC hearing aids are placed in the ear canal, which lends a level of discretion. ITC hearing aids are recommended for people with mild to moderate hearing loss. Some ITC models come with remote controls, which make adjustments easier.
CIC hearing aids are placed further in your ear canal than ITC ones, which gives you even more discretion. Certain. CIC models are considered “invisible-in-canal” because they cannot be detected by sight at all. CIC hearing aids are designed to treat mild to moderate hearing loss.
How Hearing Aids Work
Common Hearing Aid Features
Sound Amplification & Speech Recognition
Directional microphones capture the sounds in your environment and the hearing aid’s fast processing platform amplifies and analyzes the sounds you want to hear. Hearing aids are designed with easy volume controls to help you hear certain sounds better, while the processing platform is designed to automatically minimize extraneous environmental noise that may distract with your listening experience.
Other features soften the sharpness of sudden sounds such as the slam of a door. This ensures a comfortable listening experience.
Most contemporary hearing aids use digital technology (as opposed to analog, in which you had to make adjustments manually), that automatically filters and reduces buzzing and whistling and remember your preferred sound settings.