Table 2.

Wavelet levels and coefficients with corresponding frequency ranges.

Level	Frequency (Hz)	Coefficients
9	0–0.5	1 (approximate)
9	0.5–1	2 (detail)
8	1–2	3, 4
7	2–4	5–7
6	4–8	8–13
5	8–16	14–25
4	16–32	26–48
3	32–64	49–93
2	64–128	94–183
1	128–256	184–362