Digital hearing aid

A digital hearing aid (DHA) is a compact sound-amplifying device designed to aid people who have a hearing impairment. Like analogue hearing aids, DHA has a microphone that picks up sounds and convert them into digital form, a microprocessor that amplifies and processes the digital signal, a miniature loudspeaker that delivers the sound directly into the ear canal and a battery. All components are contained in a plastic case.

单词	Digital Hearing Aid
释义	Digital Hearing Aid 英语百科 Digital hearing aid A digital hearing aid (DHA) is a compact sound-amplifying device designed to aid people who have a hearing impairment. Like analogue hearing aids, DHA has a microphone that picks up sounds and convert them into digital form, a microprocessor that amplifies and processes the digital signal, a miniature loudspeaker that delivers the sound directly into the ear canal and a battery. All components are contained in a plastic case.
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Digital Hearing Aid

Digital hearing aid