Open AccessA Study on the Reverberation Time Characteristics of Inside Space of Apartment Buildings
Author(s) -
Jae–Tack Jeong,
Byoung Kwon Lee,
Jin Yong Jeon
Publication year - 2015
Publication title -
han-guk soeum jindong gonghakoe nonmunjip/han'gug soeum jindong gonghaghoe nonmunjib
Language(s) - English
Resource type - Journals
eISSN - 2287-5476
pISSN - 1598-2785
DOI - 10.5050/ksnve.2015.25.4.291
Subject(s) - bedroom , reverberation , apartment , acoustics , living room , reverberation room , environmental science , engineering , physics , architectural engineering , civil engineering
In this study, the reverberation time of apartment living room was measured and distribution of the reverberation time was analyzed. In addition, sound field characteristics of mock-up test room similar with living room and timber structured bedroom was investigated with addition of furniture and sound absorption material. Average reverberation time of unfurnished apartment unit was 1.11 s, and reverberation time in 630 Hz~2000 Hz bands were longer than 1.2 s. It was found that from the field measurement results, reverberation time characteristic of furnished apartment living room was uniform in most of frequency bands. Averaged reverberation time of furnished living room was 0.48 s and the reverberation time of bedroom was 0.44 s. Standardized sound pressure level correction values were calculated from the average reverberation time of furnished and unfurnished apartment units. The correction value of unfurnished living room was −3.4 dB and that of furnished living room was 0.2 dB. Measured reverberation time of furnished and unfurnished apartment units indicated that reference reverberation time; 0.5 s, in KS and ISO standards is reasonable also in Korean residential environment.? ??? (???? 10040807)? (???? 14PERP-B082204-01)? ??