Patent attributes
Audio device systems and methods are provided to enhance speech pick-up from a user. The systems and methods include a plurality of left signals and right signals from microphones coupled to left and right earpieces. Various of the signals are combined to provide a primary signal having enhanced acoustic response in the direction of a selected location, such as the user's mouth. Additionally, the left signals are combined to provide a left reference signal having reduced acoustic response from the selected location, and the right signals are combined to provide a right reference signal also having reduced acoustic response from the selected location. Each of the left and right reference signals are filtered to provide left and right noise estimates, respectively, and the left and right noise estimates are subtracted from the primary signal.
