Apple Inc.

Catherine G Waft

Christopher R Wilk

Onur I Ilkorur

Anthony P Grazian

Daniel W Corona

A transducer assembly comprising: a frame positioned within an interior chamber defined by an enclosure comprising a port to an ambient environment; a surround comprising a fixed portion sealed to the frame and a movable portion dividing the interior chamber into a front volume chamber coupling a first side of the surround to the port and a back volume chamber coupled to a second side of the surround; and a barometric vent coupled to the fixed portion to vent a pressure between the front volume chamber and the back volume chamber.

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Sunnyvale, CA, United States of America

Catherine G Waft