Vocal Tract and piriform fossae dimensions.

is the length of the piriform sinuses [], f, the antiresonance frequency generated by the piriform sinuses [], VTV is the volume of the Vocal Tract [], PV is the volume of the piriform fossae [], % is the ratio PV/VTV expressed in percentage.参数定义如下：梨状隐窝（piriform sinuses）的长度[]；由梨状隐窝产生的反共振频率f[]；声道（Vocal Tract）的体积VTV[]；梨状窝（piriform fossae）的体积PV[]；以百分比形式表示的PV与VTV的比值（%）[]。