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Least squares frequency-invariant beamforming
IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, 2005.
Frequency invariant beamforming aims to parametrize array filter coefficients such that the spectral and spatial response profiles of the array can be adjusted independently. Solutions to this problem have been presented for particular array geometries and rely often on inversion formulas for Fourier or spherical harmonics. These decompositions are analytically appealing but require a larger number of sensors and/or a regular microphone spacing. However, in practical applications the number anddoi:10.1109/aspaa.2005.1540179 fatcat:qowcddaqwvhb5ke5zi25fa56wu