Figure 9
From: Multiple Source Localization Based on Acoustic Map De-Emphasis

GCF maps before (a) and after de-emphasis (b) when sources are in P2 and P4. Circles in (a) show where the second localization would occur without applying de-emphasis to GCC-PHAT functions. The GCF values in those points are approximately 0.7, while in P4 the map value is about 0.6.