How Hearing Aids Work
8th Grade · Technology · 30 min
Lesson Preview
Learning Objective
I can explain how a hearing aid processes sound to help people hear.
- 1
A hearing aid is an electronic device that improves hearing by making sounds louder and clearer, and it has three main parts: a microphone, an amplifier, and a receiver.
- 2
The microphone in a hearing aid picks up sound waves from the environment and converts them into electrical signals.
- 3
The amplifier increases the strength of the electrical signals and can filter out background noise, while the receiver converts these signals back into amplified sound waves for the ear.
