EVALITA 2009 Speaker Identity Verication \Application" Track |Organizer's Report|

This is an analysis and comparison of the accuracy of the seven primary systems submitted to the EVALITA 2009 Speaker Iden- tity Verication \Application" Track. We analyze performance accord- ing to test-segment duration, mode of enrollment and telephone types. In particular, we highlight two important problems: the diculty with mismatched telephone types in enrollment and test; and the diculty of consistent score calibration across dierent conditions.