@MISC\{IMM2006-04400,
    author       = "M. S. Pedersen and D. Wang and J. Larsen and U. Kjems",
    title        = "Two-microphone Separation of Speech Mixtures",
    year         = "2006",
    month        = "jan",
    keywords     = "Demo, Underdetermined {ICA}",
    publisher    = "",
    address      = "",
    note         = "Matlab source code available at: http://www.imm.dtu.dk/pubdb/p.php?4399",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/4400-full.html",
    abstract     = "In this demonstration we show the separation of {3-}7 mixed speech sources based on information from two microphones. Separation with background noise is demonstrated too.  

The algorithms are described in

1] Michael Syskind Pedersen, DeLiang Wang, Jan Larsen and Ulrik Kjems: {''}Two-microphone Separation of Speech Mixtures{,''} 2006, submited for journal publication.

See also,

[2] Michael Syskind Pedersen, DeLiang Wang, Jan Larsen and Ulrik Kjems: {''}Overcomplete Blind Source Separation by Combining {ICA} and Binary Time-Frequency Masking{,''} in proceedings of {IEEE} International workshop on Machine Learning for Signal Processing, pp. 15-20, 2005."
}