Table 2 Coefficients of sound absorption of materials of the enclosure of the drum tower
From: Comparison and simulation-based analysis of the sound field of Dong drum tower buildings
Material Name | Sound absorption coefficient for the following frequencies (Hz) | ||||||
|---|---|---|---|---|---|---|---|
63 | 125 | 250 | 500 | 1Â k | 2Â k | 4Â k | |
Hard stone steps | 0.01 | 0.01 | 0.02 | 0.02 | 0.02 | 0.03 | 0.03 |
Masonry | 0.21 | 0.21 | 0.54 | 0.74 | 0.34 | 0.28 | 0.42 |
Interior wood materials | 0.05 | 0.05 | 0.10 | 0.11 | 0.05 | 0.05 | 0.05 |
Wooden arch | 0.25 | 0.25 | 0.32 | 0.41 | 0.53 | 0.40 | 0.50 |