CONF Khoury_NISTSRE_2012/IDIAP The Idiap Speaker Recognition Evaluation System at NIST SRE 2012 Khoury, Elie El Shafey, Laurent Marcel, Sébastien NIST - NIST Speaker Recognition Conference Orlando, USA 2012 In this paper, we present the Idiap Research Institute submission to the 2012 NIST Speaker Recognition Evaluation. Our system is based on the Inter-Session Variability (ISV) modelling technique. The implementation of the system relies on Bob, a free signal processing and machine learning toolbox developed at Idiap. The NIST official results show the effectiveness of the proposed approach, especially on added noise data.