Investigation of Objective Parameters of Vehicle Door Closing Transient Sound Quality Based on Complex Analytic Wavelet Method

Table 5

Mother wavelet parameter of door closing sound sample.

Wavelet no.	Center frequency ()	Frequency band ()	Scale factor	Range of scale factor	Step length
1	50	0–100	960	480–1440	9.6
2	150	100–200	320	240–480	2.4
3	250	200–300	192	160–240	0.8
4	570	510–630	84.21	76.1–94.12	0.1793
5	1175	1080–1270	40.85	38.8–44.44	0.0564
6	1860	1720–2000	25.81	24–27.91	0.0391
7	2160	2000–2320	22.22	20.69–24	0.0331
8	2925	2700–3250	16.41	14.7–17.78	0.0301
9	10750	9500–12000	4.47	4–5.05	0.0105