Table 2: Result of optimization microphones array coordinate.

Number of microphones

100
21.99631.9963
3−1.99631.9963
4−1.9963−1.9963
51.9963−1.9963
62.00002.0000
7−2.00002.0000
8−2.0000−2.0000
92.0000−2.0000
100.00000.0000
110.00000.0000
120.00000.0000
130.00000.0000
140.06660.0666
15−0.06660.0666
16−0.0666−0.0666
170.06660.0666
181.93711.9371
19−1.93711.9371
20−1.93711.9371
211.9371−1.9371
221.99991.9999
23−1.99991.9999
24−1.99991.9999
251.99991.9999
260.00370.0037
27−0.00370.0037
28−0.00370.0037
290.00370.0037