How Does a Hearing Aid Work?
When sound waves reach the hearing aid, they enter through a microphone. This microphone converts the acoustic signals into electrical ones. An amplifier in the hearing aid increases the strength of the electrical signal. The signal is transformed back into an acoustical signal by the receiver. From the receiver, the signal goes into the ear canal through a small tube or ear mold. There are three main types of hearing aids:
In the Ear (ITE) hearing aid
ITE hearing aids fit directly into the external part of the ear and are custom made to fit the contours of your ear. Appealing shell styles combine improved cosmetics with optimal power and sound quality.
Behind-the-Ear (BTE) hearing aid
BTE hearing aids are housed in a small curved case which fits behind the ear. A thin transparent tube is inserted directly into the ear canal. This reduces the “plugged up” sensation associated with some hearing aids. This type of hearing aid is also referred to as “open fit” since your ear canal is left open.
Receiver-in-the-Ear (RIE) hearing aid
RIE hearing aids are housed in a small case that fits in the ear. It naturally rests on the curve of the ear and is virtually invisible due to its discreet tube and receiver.
Thanks to advances in digital technology, hearing aids have drastically improved over the years. They are smaller and less noticeable, and they have better sound quality than ever before. The top hearing aids feature directional or high definition hearing. Those models use two microphones. They also have the ability to enhance the sounds coming from in front of you while turning down background noise. This helps patients better listen to those speaking directly to them without getting distracted by other sounds.
Beltone’s state-of-the-art digital hearing aids include:
- Multiple channels for better prescription fit
- Automatic volume control to ensure sounds are never too loud and are reduced for comfort
- Speech Pattern Detection and noise reduction to help you hear better in background noise
- Anti-Feedback Control to reduce whistling
- Wind Noise Suppression to help you better enjoy outdoor activities
- Open fit technology to relieve feeling “plugged up”
Hearing Aid Styles