How Do Hearing Aids Work?
Hearing aids change sounds into electrical signals that could then be amplified and converted back into sounds that could be transmitted into the ear.
They work by increasing the amplitude of voice simultaneously increasing its volume, allowing people with hearing difficulties to hear what they could not at a lower volume.
Hearing aids use technology to collect, amplify, and focus sounds so that hearing-impaired persons can hear the sounds around them.
The very first hearing aids were large, mechanical devices that resembled large trumpets with long funnels. These awkward instruments collected sounds and funneled them into the ear.
Hearing aids have four basic parts: a microphone, an amplifier, a speaker, and a battery. The microphone collects sounds from the environment and converts those sounds to electrical signals that are sent to the amplifier.
The amplifier makes the signals more powerful and sends them to the speaker, where they’re converted back to sound and broadcast into the ear. The battery, of course, powers all of these electronic components.
Many people suffer hearing loss as a result of aging, disease, or injury to the ear. Hearing aids help the working parts of the ear to function more easily by providing magnified sounds.