음향 반사판의 밀도별 흡음특성 및 무대음향에의 영향
- Title
- 음향 반사판의 밀도별 흡음특성 및 무대음향에의 영향
- Author
- 전진용
- Keywords
- 면밀도; 무대음향; 실내음향; 음향 반사판; 흡음; Acoustic Reflector; Room Acoustics; Sound Absorption; Stage Acoustics; Surface Density
- Issue Date
- 2012-05
- Publisher
- 한국소음진동공학회
- Citation
- 한국소음진동공학회 논문집, 2012, 22(5), P.429-436, 8P.
- Abstract
- In concert halls and auditoriums, acoustic reflector and stage enclosure is one of the main factors on the room and stage acoustic characteristics. As a stage enclosure and acoustic reflector honey comb based light-weight reflector is widely used, because it is easy to install. However, there was not enough research on the surface density effect on room and stage acoustics. In this study, sound absorption coefficient tests on three kinds of wooden acoustic reflectors with different surface density were conducted. Surface density of acoustic reflector was changed from 11 kg/$m^2$ to 41 kg/$m^2$. For the low frequency excitation, sub-woofer was used with omnidirectional loud-speaker simultaneously. From the experiments, it was found that sound absorption coefficient below 250 Hz band was decrease by the increment of surface density. In order to check the influence of the surface density on room and stage acoustic parameters, room acoustic simulation was conducted with sound absorption coefficients, which were tested in reverberation chamber. By the increment of surface density of acoustic reflector, RT(reverberation time) and EDT(early decay time) were increased. Also, ST(stage support) was improved in low frequency bands.
- URI
- http://www.dbpia.co.kr/Journal/ArticleDetail/NODE02404910https://repository.hanyang.ac.kr/handle/20.500.11754/70100
- ISSN
- 1598-2785
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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