What are Hearing Aids?
Hearing Aids (also called hearing instruments) are sound-amplifying devices designed to aid people who have a hearing impairment.
Most hearing aids include 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; and batteries that power the electronic parts.
Many of the newer hearing aids have the capability to sync wirelessly to landline telephones, cell phones, MP3 players and televisions. Each company has its own line to match its particular hearing instrument. The technology is available in most price points of hearing devices.
Hearing aids mainly differ by :
Technology used to achieve amplification (i.e., analog vs. digital)
What is the difference between analog and digital hearing aids?
|Analog Hearing Aids||Digital Hearing Aids|
|Convert sound into electrical signals that are amplified and passed to the earphone on the hearing aid.||Digital hearing aids use a tiny computer to process sound which makes it possible for the device to be programmed to suit your particular type and ‘shape’ of hearing loss|
|Most of this type of hearing aid has single program and it remains same in all listening situations||Some digital aids can be pre-programmed for different listening situations according to your lifestyle and some adjust automatically|
|Make sounds louder but may not discriminate between them. i.e, amplify all sounds (e.g., speech and noise) in the same way||Suppress background noise so that speech is easier to hear and understand especially in noisy environments|
|This type of instrument is normally big in size||Possibility of Wireless, water-proof and also can be made virtually invisible|
|It is available with only few manufactures||Available with all the hearing aid manufactures|