Figure 2.

(a) and (b) Charts for general distributions of local effective mass and local lateral stiffness of the vocal fold. They were averaged over all optimization results on the 24 experimental data sets. The black points are the positions of different mass elements distributed at vocal fold surface. Different gray levels correspond to different values of local mass/stiffness. Dark gray level to light gray level denotes small value to large value. The dotted lines are iso-lines.