JANUARY 2013 FEBRUARY 2013 VOLUME 21 VOLUME 21 NUMBER 1 NUMBER 2 ITASD8 (ISSN 1558-7916) An example of estimated simultaneous streams generated by the tandem algorithm. Each simultaneous stream is denoted by a distinct color. For more see "An Unsupervised Approach to Cochannel Speech Separation," by Hu and Wang, p. 122. For the January 2013 issue, see p. 1 for Table of Contents For the February 2013 issue, see p. 221 for Table of Contents www.signalprocessingsociety.org [9] APRIL 2013http://www.signalprocessingsociety.org