Example of a dataset where σ = 20 degrees. Only a short segment of the signals is shown, for clarity. Top row: original sources (left) and PLFs between them (right). Middle row: mixed signals (left) and PLFs between them (right). Bottom row: estimated sources, after manual compensation of permutation, scaling, and sign (left); PLFs between them (middle); and the gain matrix W
A(right). The gain matrix has significant values outside the diagonal, indicating that a complete separation was not achieved. Nevertheless, the largest values are in the diagonal, corresponding to a partial separation.