Patent ID: 8331595

Claim:
A method of operating a hearing aid comprising a hearing aid housing having a first surface adapted to be positioned in or at an ear canal of a person and an at least substantially opposed surface adapted to face the surroundings of the person's ear and having therein: a microphone positioned so as to detect sound from the surroundings, a single, first sound opening in the first surface, a second sound opening in the opposed surface, and a miniature loudspeaker comprising a speaker housing comprising therein: a first motor assembly and a first displaceable diaphragm operatively coupled to the first motor assembly, the first displaceable diaphragm comprising first and second opposing diaphragm surfaces arranged to divide the speaker housing into a front chamber above the first diaphragm surface and a first back chamber above the second diaphragm surface, a first sound port arranged in a first portion of the speaker housing and acoustically coupled to the front chamber to transmit or receive sound to/from outside of the speaker housing, and a second sound port arranged in a second portion of the speaker housing and acoustically coupled to the front chamber to transmit or receive sound to/from outside of the speaker housing; wherein the first and second sound ports are positioned in opposing wall parts of the speaker housing; the method comprising: detecting, via the microphone, sound from the surroundings and outputting a signal; feeding a first signal relating to the signal to the motor assembly so as to produce a corresponding sound; transporting the produced sound from the first sound port to the first sound opening; and allowing sound from the second sound opening to exit the first sound opening via the front chamber.