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The relationship between Wavelet coefficients and frequencies and signal information.
| Wavelet Coefficient | Frequency (Hz) | Signal Information |
|---|---|---|
| D1 | 250–500 | Noise |
| D2 | 125–250 | Noise |
| D3 | 63–125 | Noise |
| D4 | 32–63 | Gamma |
| D4 | 16–32 | Beta |
| D6 | 8–16 | Alpha |
| D7 | 4–6 | Theta |
| D8 | 0–4 | Delta |
