EARCUP FOR AUDIO COMMUNICATION AND HEADSET

Abstract: the earcup comprises a housing wall separating an inner cavity inside the earcup from space surrounding the earcup, and an electroacoustic transducer with a diaphragm. the diaphragm is configured to emit sound into the surrounding space from a front side of the diaphragm. a gas in the inner cavity has a first pressure that exerts a force on the back side of the diaphragm. the earcup further comprises a displaceable wall that fluidly divides the inner cavity into a first sub-cavity containing the gas and a second sub-cavity containing one or more fluids, and one or more openings in the housing wall that fluidly connect the second sub-cavity with the surrounding space. the displaceable wall is configured to be displaced by oppositely directed forces exerted respectively by the first pressure and by a second pressure of the one or more fluids.

Inventor(s): Lars Ivar HAUSCHULTZ

CPC Classification: H04R1/2888 (Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means {(combinations of transducers with horns, i.e. front-loaded horns )})

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