지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.8
- 수록면
- 225 - 234 (10page)
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이 논문의 연구 히스토리 (4)
2022
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The Seoul Norimadang, which opened in 1984, installed a dome-shaped membrane structure on the ceiling of the outdoor performance hall in 2004 to allow performances in bad weather such as rain and snow. But, the dome-shaped membrane structure collects sound energy emitted from the outside during the performance and reflects it back to the floor of the concert hall, resulting in serious acoustic defects in which the sound is mixed. Therefore, the sound performance improvement work was carried out but the sound performance was not satisfactory so far, so this study proposed to improve the sound performance by installing suspension absorbers using sound simulation. The results of study, before and after sound performance improvement sound pressure level (SPL500Hz) was 62.3 dB versus 65.2 dB , the weighted sound level (SPLdB(A)) was 67.8dB(A) versus 69.3dB(A), reverberation time (RT500Hz) was 1.66sec versus 3.02sec, early decay time (EDT500Hz) was 1.49sec versus 2.81sec, definition (D50,500Hz) was 55.8 % versus 33.5 %, clarity (C80.500Hz) was 2.8 dB versus –0.7 dB, and RASTI was 58.5 %(“Fair”) versus 43.2 %(“Poor”) was evaluated.
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