Hearing aid transducer

Details Hearing aid transducer Hearing aid transducer

H - Electricity

04

R

349/28

H04R 25/02 (2006.01) H04R 25/00 (2006.01)

Patent

CA 1297575

87717-CIP HEARING AID TRANSDUCER Abstract of the Disclosure This invention is concerned with a hearing aid including a microphone, an adjustable amplifier, and an acoustic transducer positioned within a first, large acoustic chamber defined by an in-the-ear housing. The acoustic transducer is in communication with a sound outlet passage which leads into the user's ear canal. The acoustic transducer includes a sound generating diaphragm driven by an acoustic driver. The diaphragm and driver are mounted in the acoustic transducer, with the diaphragm dividing the transducer into second and third acoustic chambers. A vent passage is provided between the first and third acoustic chambers. An acoustic resistance is mounted in the vent passage to modify the operating characteristics of the hearing aid.

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