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Hz
Absorption Coefficient
100
0.1
0.35
125
0.08
0.41
160
0.14
0.43
200
0.21
0.6
250
0.32
0.77
315
0.62
0.97
400
0.85
1.01
500
1.17
0.91
630
1.09
0.83
800
0.81
0.71
1000
0.58
0.61
1250
0.45
0.55
1600
0.38
0.5
2000
0.34
0.42
2500
0.32
0.38
3150
0.33
0.38
4000
0.43
0.44
5000
0.48
0.49
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