Patent ID: 8644540
Filing Date: 2014-02-04
Classification: H04R

Abstract:
1. A hearing device adapted for placement in, at or near a person's ear, the hearing device comprising: a main microphone; a receiver; a signal conditioner connected to the main microphone and to the receiver; and an ear plug adapted for placement in or close to the ear's ear canal, the ear plug being configured to extend substantially across the ear canal, thereby separating an inner portion of the ear canal from the person's surroundings, wherein the main microphone is arranged for receiving acoustical input signals from the person's surroundings and is adapted for converting the acoustical input signals into electrical input signals and feeding the electrical input signals to the signal conditioner, the signal conditioner is adapted for modifying the electrical input signals into electrical output signals and feeding the electrical output signals to the receiver, the receiver is adapted for converting the electrical output signals into acoustical output signals and is arranged for transmitting the acoustical output signals into the ear's ear canal, the receiver comprises a thermoacoustical transducer which is permeable to gas, the thermoacoustical transducer is embedded in a cavity in the ear plug and/or arranged on a surface of the ear plug, the ear plug further includes a vent arranged to fluidly connect the inner portion of the ear canal with the person's surroundings, and the vent extends through the thermoacoustical transducer.