BASLP 3rd Semester Notes » Paper 4: Amplification Devices
Unit 1: Types of Hearing Aids
- Historical development of hearing aids: development of concept of amplification, development of different types of amplification devicesReview of basic elements of hearing aids: Microphone, Amplifier,
- Receiver/vibrator, Cords, Batteries.
- Classification and Types of hearing aids
- Body level, ear level, in the ear, ITC, invisible in the canal, CIC
- Binaural, pseudo binaural, monaural
- Programmable, trimmer digital and digital hearing aids
- Directional hearing aids, modular hearing aids
- RIC hearing aids
- Implantable hearing aids
- Master hearing aids
- CROS hearing aids
- Group amplification – hard wired, induction loop, FM, infrared
- Assistive listening devices – types and selection (Telephones, Television, typing technology)
Hearing Aid (HA) and its Components
Hearing Aid (HA) and its Components: Hearing aids are devices that boost sound levels so the patient can hear them. This process is called amplification. Most simply, a hearing aid amplifies sounds just like a megaphone, except the amplified sound is directed right...
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