Transducer, a hearing aid comprising the transducer and a method of operating the transducer

摘要

The invention relates to a transducer comprising a housing, a first and a second diaphragm, and a first and a second signal provider. The housing comprises an inner surface. The first and second diaphragms are positioned in the housing. The first and second diaphragms define a common compartment being delimited by at least both a part of the inner surface and the first and second diaphragms. The first signal provider is configured to convert movement of the first diaphragm into a first signal. The second signal provider is configured to convert movement of the second diaphragm into a second signal. The transducer can be used in a hearing aid.

主权项

1. A transducer comprising:
a housing comprising an inner surface; a first diaphragm and a second diaphragm each positioned in the housing, the first and second diaphragms and the inner surface of the housing at least partly defining a common compartment within the housing, the common compartment lacking an acoustic filter that filters sound travelling in the common compartment between that first and second diaphragms; a first signal provider and a second signal provider, the first signal provider being configured to convert movement of the first diaphragm into a first signal, the second signal provider being configured to convert movement of the second diaphragm into a second signal; and wherein a ratio of an acoustical compliance of the first diaphragm to an acoustical compliance of the common compartment is in a range of 0.025 to 9, and a ratio of an acoustical compliance of the second diaphragm to the acoustical compliance of the common compartment is in a range of 0.025 to 9.