Audio assembly with acoustical mass for hearing devices

Abstract

The present invention relates to an audio assembly for a hearing device, said audio assembly comprising 1) a nozzle comprising a sound channel and a sound outlet acoustically connected to the sound channel, wherein the sound channel, in a plan essentially perpendicular to a longitudinal axis of the sound channel, has a cross-sectional area, AN, limited by a sound channel wall, and 2) a miniature receiver at least partly positioned in the sound channel, wherein the miniature receiver, in a plan essentially perpendicular to a longitudinal axis of the miniature receiver, has a cross-sectional area, AR, defined by a housing of the miniature receiver, and wherein the housing of the miniature receiver comprising a sound output port and a venting opening, wherein the longitudinal axes of the sound channel and the miniature receiver are essentially parallel when the miniature receiver is at least partly positioned in the sound channel, and wherein the cross-sectional area, AN, of the sound channel exceeds the cross-sectional area, AR, of the miniature receiver, and wherein the excess cross-sectional area of the sound channel forms an acoustical passage defining an acoustical mass between a part of the sound channel wall and an outer housing part of the miniature receiver, and wherein the acoustical passage extends in the direction of the longitudinal axis of the sound channel, and wherein the acoustical passage is acoustically connected to the sound outlet of the nozzle and to the sound output port of the miniature receiver whereby the acoustical passage is arranged between the sound outlet of the nozzle and the sound output port of the miniature receiver. The present invention further relates to hearing device comprising an audio assembly.

Dependencies are inferred from the claim text.