Keiju Iso, University of Tsukuba/NTT Communication Science Laboratories, Japan iso@mmlab.cs.tsukuba.ac.jp This is source separation based model parameter estimation using EM algorithm. All iterations of EM algorithm are 30. Elapsed times of algorithm are about 108~112s (CPU is Core i3 M380 2.53GHz). Details of the algorithm is written in; Iso, K.; Araki, S.; Makino, S.; Nakatani, T.; Sawada, H.; Yamada, T.; Nakamura, A., "Blind source separation of mixed speech in a high reverberation environment," in Proc. of HSCMA 2011, pp. 36--39, 2011.