A hearing aid is actually a small electronic device, which makes the sound louder so that a person with hearing loss can listen, communicate, and participate properly in daily activities. A hearing aid also helps people to hear more in both quiet and noisy situations.
The hearing aid has three parts: a microphone, amplifier, and speaker. It receives sound through a microphone, which converts the sound waves to electrical signals and sends them to an amplifier then the amplifier increases the power of the signals and sends them to your ear through a receiver.
How can hearing aids help?
Basically, Small microphones collect sounds from the environment. A computer chip inside the hearing aid converts the incoming sound into digital code. After that, It analyzes and adjusts the sound based on your hearing loss. In the end, the amplified signals are converted back into sound waves and delivered to your ears through the receivers.
Different styles of hearing aids
Completely in the canal (CIC)
a. Is the smallest and least visible type
b. Is less likely to pick up wind noise
c. Uses very small batteries, which have a shorter life and can be difficult to handle
d. Often doesn’t include extra features, such as volume control or a directional microphone
e. Is susceptible to earwax clogging the speaker
In the canal
a. Includes features that don’t fit on smaller style hearing aids, such as volume control
b. May be easier to handle
c. Uses a larger battery for longer battery life, with several options for rechargeable batteries
d. Is susceptible to earwax clogging the speaker
e. May pick up more wind noise than smaller devices
f. Is more visible in the ear than in smaller devices
Behind the ear
a. Traditionally has been the largest type of hearing aid, though some newer mini designs are streamlined and barely visible
b. Has directional microphones
c. Is capable of more amplification than other styles
d. May pick up more wind noise than other styles
e. May be available with a rechargeable battery
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