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다목적홀의 음향성능 예측을 위한 1/10 축척모형의 제작 및 평가
류종관(Ryu. Jong-Kwan),장호연(Chang. Ho-Yeon),신동재(Sheen. Dong-Jae),전진용(Jeon. Jin-Yong) 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1
The contents and considerations in design process of multi-purpose halls, scale model as an efficient tool to predict acoustical qualities of spaces for music and speech were introduced. A 1/10 scale model was constructed to measure the acoustical properties and to complement and adjust the architectural components on room acoustical characteristics of K-performing arts center. The materials for scale model such as seating and audiences, absorption banners based on measurement of absorption coefficient in a 1/10 reverberation chamber were selected. In addition, the reverberation time of scale model was measured in occupied seatings and the effect of absorption banners on the ceilings and side walls was also investigated.
유진(You, Jin),장호연(Chang, Ho-Yeon),이충화(Lee, Chung-Hwa),정정호(Jeong, Jeong-Ho),전진용(Jeon, Jin-Yong) 한국소음진동공학회 2006 한국소음진동공학회 논문집 Vol.16 No.8
The sound quality characteristics of refrigerator noise in an anechoic chamber and in a real living environment for 30 models of refrigerators were investigated. Subjective evaluation experiments were conducted to determine subjective tolerance level for refrigerator noise. Refrigerator noise was played from a loudspeaker at the position normally occupied by a refrigerator in a real living environment. A nine-point scale was used to measure subjective satisfaction of the sound pressure levels for refrigerator noise. Point 3 on the scale corresponded to a sound pressure level of about 30 dB(A). Seventy percent of the participants were satisfied with this level of refrigerator noise. A semantic differential test was also conducted to evaluate the sound quality of refrigerator noise. From the results of correlation and multiple regression analyses on the psychoacoustical parameters and subjective evaluations of 30 refrigerators, sound quality indices which predict the subjective rating score were proposed.