Table A.1.

Neutral diameter function, Ω(i), and two modes, ϕ₁(i) and ϕ₂(i), used to generate vocal tract area functions with Eq. (1). The index i represents consecutive sections of an area function ordered from glottis to lips. The length of each section is ΔL = 0.2386 cm.

i	Ω(i)	ϕ1(i)	ϕ2(i)
1	0.353	0.000	−0.004
2	0.353	0.000	−0.003
3	0.382	−0.000	−0.005
4	0.479	−0.001	−0.009
5	0.634	−0.002	−0.018
6	0.810	−0.005	−0.033
7	0.976	−0.010	−0.052
8	1.115	−0.018	−0.068
9	1.224	−0.026	−0.072
10	1.300	−0.035	−0.070
11	1.342	−0.044	−0.062
12	1.363	−0.055	−0.049
13	1.376	−0.065	−0.033
14	1.387	−0.075	−0.015
15	1.394	−0.082	0.002
16	1.395	−0.089	0.019
17	1.390	−0.095	0.036
18	1.378	−0.100	0.051
19	1.359	−0.103	0.065
20	1.333	−0.105	0.077
21	1.303	−0.104	0.085
22	1.272	−0.096	0.086
23	1.243	−0.081	0.079
24	1.221	−0.059	0.063
25	1.212	−0.029	0.039
26	1.223	0.008	0.006
27	1.257	0.053	−0.036
28	1.306	0.101	−0.083
29	1.351	0.146	−0.120
30	1.392	0.187	−0.147
31	1.428	0.223	−0.164
32	1.462	0.252	−0.170
33	1.491	0.274	−0.166
34	1.515	0.288	−0.149
35	1.533	0.295	−0.121
36	1.546	0.294	−0.081
37	1.554	0.287	−0.029
38	1.556	0.274	0.034
39	1.550	0.256	0.107
40	1.535	0.233	0.189
41	1.509	0.205	0.279
42	1.467	0.173	0.376
43	1.439	0.141	0.459
44	1.414	0.115	0.531