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Hz
Absorption Coefficient
125
0.46
160
0.55
200
0.68
250
0.69
315
0.94
400
1.09
500
1.13
630
1.20
800
1.18
1000
1.15
1250
1.16
1600
1.18
2000
1.16
2500
1.18
3150
1.18
4000
1.17
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