HOW Do Hearing Aids Work?
Modern hearing aids work much like miniature telephones. They have microphones to pick up sound and amplifiers that increase the loudness in the ear of the wearer.
Perhaps the hearing of someone you know is not as good as it was when he was younger and he must now wear a hearing aid.
A hearing aid is a sound amplifier – a device that increases the loudness of sounds in the ear of the wearer. The earliest hearing aid was the ear trumpet. This was a trumpet- shaped instrument. Its small end was placed to the ear. It simply gathered in sound and funneled it into the ear.
Today people who are hard-of hearing use small transistor hearing aids instead of ear trumpets.
Modern hearing aids are essentially small battery-powered telephones. They have microphones to pick up sound and amplifiers to make sounds louder.
A button- sized receiver fits in the ear or behind it, depending on the type of hearing defect, and sends sound vibrations to the hearing center. Sometimes, hearing aids are so tiny that you hardly notice them. – Dick Rogers
- Posted in: Loudness of Sounds ♦ Modern Hearing Aids ♦ Small Battery-powered Telephones ♦ Small End Hearing Instrument ♦ Small Transistor Hearing Aid ♦ Tiny Hearing Aid
- Tagged: Battery-powered Telephones, Button-sized Receiver, Ear Trumpet, Hearing Aids, Hearing Center, Hearing Defect, Hearing Device, Loudness in the Ear, Loudness of Sounds, Microphones, Miniature Telephones, Sound Amplifiers, Sound Vibrations, Transistor Hearing Aid, Trumpet-shaped Instrument