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open.Audio Algorithms and Hardware Slide 6

To perform the sound localization algorithm it is also mandatory to use at least two mics. That enables a selectivity of 180°. In order to achieve 360°, four mics are required. Two algorithms are available. Selecting one or the other depends on the distance of the mics. XCORR supports distance in the range of centimeters while GCC-PHAT supports in the range of millimeters.

PTM Published on: 2016-06-13