Open Access
Table 1
Example of acoustical parameters for omni source calculated in virtually reconstructed Epidaurus with audience, using four different source positions and 20 receiver positions. Average and standard deviation of each parameter are presented. All results are for the 1 kHz octave band.
Parameter | Source pos. A |
Source pos. B |
Source pos. C |
Source pos. D |
||||
---|---|---|---|---|---|---|---|---|
Avg. | SD | Avg. | SD | Avg. | SD | Avg. | SD | |
EDT (s) | 3.34 | 2.09 | 1.22 | 0.21 | 0.21 | 0.03 | 0.14 | 0.04 |
ξ (EDT) (‰) | 635 | 277 | 564 | 150 | 113 | 40 | 110 | 55 |
T20 (s) | 0.66 | 0.19 | 0.59 | 0.07 | 0.80 | 0.06 | 0.89 | 0.15 |
ξ (T20) (‰) | 162 | 142 | 101 | 42 | 75 | 25 | 95 | 34 |
T30 (s) | 0.68 | 0.05 | 0.76 | 0.12 | 0.89 | 0.08 | 0.9 | 0.06 |
ξ (T30) (‰) | 52 | 18 | 53 | 26 | 31 | 25 | 39 | 23 |
Curvature, C (%) | 7 | 21 | 30 | 19 | 13 | 12 | 4 | 16 |
Strength, G (dB) | −5.3 | 6.3 | −5.4 | 3.7 | −5.9 | 3.1 | −7.4 | 3.2 |
Efficiency, E (dB) | 1.8 | 0.7 | 4.6 | 0.5 | 6.4 | 0.3 | 5.8 | 0.5 |
D 50 | 0.77 | 0.12 | 0.70 | 0.09 | 0.95 | 0.01 | 0.96 | 0.01 |
C50 (dB) | 6.3 | 4.6 | 3.9 | 2.2 | 12.9 | 0.8 | 14.4 | 1.4 |
C80 (dB) | 6.4 | 4.6 | 12.6 | 2.4 | 16.2 | 0.5 | 16.8 | 1.3 |
TS (ms) | 29 | 14 | 24 | 7 | 16 | 1 | 12 | 1 |
Echo – Dietsch | 1.87 | 0.36 | 1.45 | 0.19 | 0.43 | 0.08 | 0.49 | 0.14 |
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