Open Access
Table 2
Absorption coefficients, chardepth (mm) as the single value using equation (1), and associated surface area (m2) in the calibrated GA model. † have defined scattering coefficients of [30%, 40%, 50%, 60%, 70%, 80%].
| 125 | 250 | 500 | 1000 | 2000 | 4000 | chardepth | Area | ||
|---|---|---|---|---|---|---|---|---|---|
| Walls, Ceiling | Min. | 0.14 | 0.05 | 0.04 | 0.03 | 0.03 | 0.02 | 20 | 1688 |
| Max. | 0.42 | 0.25 | 0.22 | 0.15 | 0.10 | 0.08 | 20 | 1688 | |
| Audience | Min. | 0.32 | 0.48 | 0.66 | 0.73 | 0.77 | 0.74 | † | 1228 |
| Max. | 0.72 | 0.82 | 0.91 | 0.96 | 0.94 | 0.90 | † | 1228 | |
| Floor | Min. | 0.10 | 0.07 | 0.06 | 0.06 | 0.06 | 0.06 | 20 | 1092 |
| Max. | 0.15 | 0.11 | 0.10 | 0.07 | 0.06 | 0.07 | 20 | 1092 | |
| Stage-house | Min. | 0.01 | 0.01 | 0.01 | 0.02 | 0.02 | 0.02 | 20 | 906 |
| Max. | 0.10 | 0.05 | 0.06 | 0.07 | 0.09 | 0.10 | 20 | 906 | |
| Panel | Min. | 0.14 | 0.05 | 0.04 | 0.03 | 0.03 | 0.02 | 20 | 561 |
| Max. | 0.42 | 0.25 | 0.22 | 0.15 | 0.10 | 0.08 | 20 | 561 | |
| Curtains | Min. | 0.04 | 0.05 | 0.11 | 0.18 | 0.30 | 0.35 | 20 | 102 |
| Max. | 0.10 | 0.38 | 0.63 | 0.63 | 0.70 | 0.73 | 20 | 102 |
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