EURASIP Journal on Audio, Speech, and Music Processing

Table 2 Feasibility of the first-, second-, and third-order DMAs for different number of microphones, where “ √” represents feasible and blank represents infeasible

From: Steerable differential beamformers with planar microphone arrays

	First-order			Second-order			Third-order
	LDMA	LSDMA	CSDMA	LDMA	LSDMA	CSDMA	LDMA	LSDMA	CSDMA
M=2	√
M=3	√	√	√	√
M=4	√	√	√	√	√		√
M=5	√	√	√	√	√	√	√
M=6	√	√	√	√	√	√	√	√
M≥7	√	√	√	√	√	√	√	√	√

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