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The distances measured with a range finder were visualized in 4 cave structures using 3D CAD. As for the sound, the time from when the sound of the tuning fork peaked until it dropped to 50dB was measured by cutting the video recorded by the analyzer at 0.01 with a movie maker. And the relationship between each cave structure and reverberation time was investigated.
5.1. Structure of the cave
5.2. Reverberation time
| 장소1(협재굴) | 장소2(쌍용굴1) | 장소3(쌍용굴2) | 장소4(쌍용굴3) | |
| 1 | 4.70 | 5.47 | 5.43 | 5.33 |
| 2 | 4.73 | 5.47 | 5.37 | 5.57 |
| 3 | 5.10 | 5.40 | 5.50 | 5.53 |
| 4 | 5.13 | 3.93 | 5.03 | 5.43 |
| 5 | 5.30 | 4.73 | 5.77 | 5.50 |
| 6 | 4.87 | 4.93 | 4.63 | 5.33 |
| 7 | 5.80 | 4.70 | 4.83 | 5.50 |
| 8 | 5.67 | 5.37 | 4.40 | 5.40 |
| 9 | 5.90 | 5.37 | 4.77 | 5.17 |
| 10 | 5.27 | 5.20 | 4.77 | 4.93 |
| 평균 | 5.25 | 5.06 | 5.05 | 5.37 |
| 표준편차 | 0.43 | 0.49 | 0.44 | 0.19 |
| 보고값(최고) | 5.54 | 5.39 | 5.35 | 5.50 |
| 보고값(최저) | 4.96 | 4.72 | 4.75 | 5.24 |
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