Estimation and Statistical Analysis of Human Voice Parameters to Investigate the Influence of Psychological Stress and to Determine the Vocal Tract Transfer Function of an Individual

Table 3

Change in the formant parameters when a single coefficient value is changed from 5 to 20%.

Parameters/change	5%	10%	15%	20%
(Hz)	551.0	542.0	532.0	512.7
(dB)	31.2	29.7	20.7	16.4
(Hz)	37.4	47.6	138.0	225.0
(Hz)	913.0	883.8	849	825.2
(dB)	22.1	19.4	16.9	14.6
(Hz)	98.7	144.3	196.0	245.2
(Hz)	1967.0	1958.0	1953.0	1948.2
(dB)	3.3	2.8	2.4	1.9
(Hz)	312.0	323.9	335.0	348.1
(Hz)	3291.0	3281.2	3276.0	3271.5
(dB)	8.6	7.4	6.4	5.4
(Hz)	228.0	253.4	277.0	310.4
(Hz)	3842.0	3847.7	3857.0	3867.2
(dB)	11.9	11.0	10.2	9.4
(Hz)	84.6	89.0	93.5	98.2