A microphone apparatus adapted to provide a main output audio signal (S M) in dependence on voice sound received from a user of the microphone apparatus, the microphone apparatus comprising: - a main microphone array with a first microphone unit adapted to provide a first input audio signal in dependence on sound received at a first sound inlet, a second microphone unit adapted to provide a second input audio signal in dependence on sound received at a second sound inlet spatially separated from the first sound inlet and a third microphone unit adapted to provide a third input audio signal in dependence on sound received at a third sound inlet spatially separated from the first and the second sound inlet (8, 9), whereby the main microphone array is defined to provide a main input vector (M M) comprising as components the first, the second and the third input audio signal (X, Y, Q); - a main beamformer adapted to provide the main output audio signal (S M) as a beamformed signal by applying a main weight vector (B M) to the main input vector (M M); and - a main beamformer controller adapted to repeatedly determine a main steering vector (d M) and adaptively determine the main weight vector (B M) in dependence on the main steering vector (d M) and the main input vector (M M) to increase the relative amount of voice sound from the user in the main output audio signal (S M), wherein the main steering vector (d M) indicates a desired response of the main beamformer; characterized in that the microphone apparatus further comprises: - an auxiliary beamformer adapted to provide an auxiliary beamformer signal (S F) as a beamformed signal by applying an auxiliary weight vector (B F) to an auxiliary input vector (M A) comprising as components the first and the second input audio signal (X, Y); and - an auxiliary beamformer controller adapted to adaptively determine the auxiliary weight vector (B F) to increase the relative amount of voice sound from the user in the auxiliary beamformer signal (S F); wherein the main beamformer controller further is adapted to determine the main steering vector (d M) in dependence on the auxiliary weight vector (B F). - a main microphone array with a first microphone unit adapted to provide a first input audio signal in dependence on sound received at a first sound inlet, a second microphone unit adapted to provide a second input audio signal in dependence on sound received at a second sound inlet spatially separated from the first sound inlet and a third microphone unit adapted to provide a third input audio signal in dependence on sound received at a third sound inlet spatially separated from the first and the second sound inlet (8, 9), whereby the main microphone array is defined to provide a main input vector (M M) comprising as components the first, the second and the third input audio signal (X, Y, Q); - a main beamformer adapted to provide the main output audio signal (S M) as a beamformed signal by applying a main weight vector (B M) to the main input vector (M M); and - a main beamformer controller adapted to repeatedly determine a main steering vector (d M) and adaptively determine the main weight vector (B M) in dependence on the main steering vector (d M) and the main input vector (M M) to increase the relative amount of voice sound from the user in the main output audio signal (S M), wherein the main steering vector (d M) indicates a desired response of the main beamformer; - an auxiliary beamformer adapted to provide an auxiliary beamformer signal (S F) as a beamformed signal by applying an auxiliary weight vector (B F) to an auxiliary input vector (M A) comprising as components the first and the second input audio signal (X, Y); and - an auxiliary beamformer controller adapted to adaptively determine the auxiliary weight vector (B F) to increase the relative amount of voice sound from the user in the auxiliary beamformer signal (S F); wherein the main beamformer controller further is adapted to determine the main steering vector (d M) in dependence on the auxiliary weight vector (B F).