RPG Diffractal Absorption Coefficients

Hz	Absorption Coefficient
125	0.23
160	0.21
200	0.26
250	0.24
315	0.29
400	0.30
500	0.35
625	0.33
800	0.26
1000	0.23
1250	0.20
1600	0.18
2000	0.20
2500	0.21
3150	0.21
4000	0.20

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