Animated agents are becoming increasingly frequent in research and applications in speech science. An important challenge is to evaluate the effectiveness of the agent in terms of the intelligibility of its visible speech. In three experiments. we extend and test the Sumby and Pollack (1954) metric to allow the comparison of an agent relative to a standard or reference. https://xiuvonvzd3ug2.celticwiki.com/1456136/sins_ar_an_efficient_smart_indoor_navigation_system_based_on_augmented_reality