LI-TIFROM is a sparsity-based Blind Source Separation method. It is based on a time-frequency (TF) analysis:
1) it first finds single-source TF zones, i.e. a set of adjacent TF windows, where a single source is active.
2) Then, in each of the above zones, it estimates a column of the mixing matrix.
3) When all the columns of the mixing matrix have been estimated, the last step consists in recovering the sources.
The LI-TIFROM package is written in MATLAB, needs the MATLAB Signal Processing Toolbox in order to run and has been tested on MATLAB 6.0, 7.0 and 7.5.