![]() ![]() External, comprised of an externally worn microphone, sound processor and transmitter system.Cochlear implants currently consist of two main components: Cochlear ImplantsĪ cochlear implant is an implanted electronic medical device that can produce useful hearing sensation by electrically stimulating nerves inside the inner ear. The speaker's voice is also heard clearly over room noises such as chairs moving, fan motors running, and people talking.ĪLDs can be used with or without hearing aids. ![]() Careful microphone placement allows the level of the speaker's voice to stay constant regardless of the distance between the speaker and the audience. The listener can usually adjust the volume of the receiver as needed. To achieve this purpose, many ALDs consist of a microphone near the source of the sound and a receiver near the listener. They may be used by both normal hearing and hearing-impaired people to improve listening in these settings.ĪLDs can be used to overcome the negative effects of distance, poor room acoustics, and background noise. ALDs are available in some public places such as auditoriums, movie theaters, houses of worship, and meeting rooms. Assistive listening devices (ALDs) or assistive listening systems include a large variety of devices designed to help you hear sounds in everyday activities. ![]()
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