Table 3. Description of the first four discriminant functions (DF) obtained from RFLDA in the PAF space.

Coeff: coefficients of the 8 most important acoustical factors for each discriminant function; CumVar: cumulative between group variance explained by the discriminant functions. Note that the colors of the variables reflect the classification between spectral (red), temporal (blue), pitch (green) and amplitude (black) parameters.

DF	Cum Var	Coeff
1	55.5
2	73.9
3	84.5
4	92.2