Figure 1
From: Geometry descriptors of irregular microphone arrays related to beamforming performance
Gain patterns of 16 microphone arrays with the same centroid and dispersion, focused on the center of FOV where white dots represent microphone positions. Array centroid is in the center of microphone plane. Blue circle represents dispersion from array centroid. (a) Regular planar array. (b) Irregular array with inferior performance. (c) Irregular array with superior performance.