On Indexicality, Direction of Arrival of Sound Sources, and Human-Robot Interaction

Table 3

Multiple-DOA estimation system performance.

Minimum distance of speaker	30 cm
Maximum distance of speaker	5 m
Maximum number of simultaneous speakers	4
Response time	s
Range (minimum angle between speakers)	10
Coverage	360
-  1 speaker	100.00%
-  2 speakers	78.79%
-  3 speakers	72.34%
-  4 speakers	61.02%