Hearing Aid Benefits and Limitations
2023年5月23日
Hearing aids are sound-amplifying devices designed to help people who have hearing loss. Most hearing aids share several similar electronic components:
- A microphone that picks up sound.
- Amplifier circuitry that makes the sound louder.
- A miniature loudspeaker (receiver) that delivers the amplified sound into the ear canal.
- Batteries that power the electronic parts.
Hearing aids differ by design, technology used to achieve amplification (analog or digital), and features such as wireless connectivity and software applications.
Some hearing aids also have earmolds or earpieces to direct the flow of sound into the ear and enhance sound quality. Hearing aid selection is based on the type and severity of hearing loss, listening needs, and lifestyle.
