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HEARING AID FOR PERSONS WITH AN IMPAIRED HEARING FACULTY
HEARING AID FOR PERSONS WITH AN IMPAIRED HEARING FACULTY
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机译：听觉障碍人士的助听器
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摘要
Hearing aid for persons with an impaired hearingfaculty, said hearing aid comprising a directional microphonewhose pick-up characteristic can be altered, said pick-upcharacteristic being automatically controlled as a function ofthe input or output signal in such a way that all possiblemicrophone characteristics may be set, and this is realized inthat the directional microphone (10) is an electret microphoneand that the changes in the pick-up characteristic take placeelectrically and continuously.
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