readme.txt

这里面包含源数多于传感器数的文章和相关源代码。

This is the source code for underdetermined separation of instaneous speech mixtures. 

The algorithm is described in

[1]	Michael Syskind Pedersen, DeLiang Wang, Jan Larsen and Ulrik Kjems: 
	Two-microphone Separation of Speech Mixtures, 2006, Submitted for 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, IEEE International workshop on Machine 
	Learning for Signal Processing, pp. 15-20, 2005


All files should be in the same directory. 
The algorithm is run by calling main.m. 
A number of parameters can be specified in main.m:

N 			Number of sources in mixture
NFFT			DFT length
winnumber		Selects window function
k			Window length is NFFT/k
noverlapfactor		Overlap between consecutive windows
th 			Mask threshold?
TC1			Merge finalstereo signals if correlation is above TC1
TC2	 		Merge finalstereo and enerstereo if correlation is above TC2
stopthresholdini	One source if condition number is above this value
thepow			tau_E (see [1])

A sound demo is available online: http://www.imm.dtu.dk/pubdb/p.php?4400

2006-01-20