MULTI-DIMENSIONAL ARRAY MICROPHONE

Embodiments include an array microphone, comprising: a plurality of microphone boards arranged in a linear pattern along a first axis and comprising a plurality of microphone elements configured to cover a plurality of frequency bands, each microphone board comprising: a first linear array comprising a first microphone element of the plurality of microphone elements and one or more second microphone elements of the plurality of microphone elements, the first microphone element located on the first axis and the one or more second microphone elements located on a second axis orthogonal to the first axis, and a second linear array comprising the first microphone element and one or more third microphone elements of the plurality of microphone elements, the one or more third microphone elements located on a third axis orthogonal to the first axis and to the second axis.