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Classification of heavy-weight floor impact sounds in multi-dwelling houses using an equal-appearing interval scale

Title
Classification of heavy-weight floor impact sounds in multi-dwelling houses using an equal-appearing interval scale
Author
전진용
Keywords
Floor impact sound; Annoyance; Classification; Building noise; Acoustic comfort; Equal-appearing interval scale
Issue Date
2015-12
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
BUILDING AND ENVIRONMENT, v. 94, Page. 821-828
Abstract
Classifications of heavy-weight floor impact sounds based on subjective responses were suggested by conducting two experiments. First, statements describing perceptual acoustic qualities related to floor impact sounds in residential buildings were collected and assessed with respect to the degree of annoyance levels. Equal-appearing interval scaling for indicating level of annoyance caused by floor impact sounds was then created using these statements. As a next step, heavy-weight floor impact sounds with different L-A,L-Fmax and temporal decay rates (DRs) were evaluated in terms of annoyance using both the Likert scale and the equal-interval statement scale in laboratory conditions. Five categories for heavy-weight floor impact sounds were suggested based on the annoyance responses. The extent of acoustic comfort in each class was clearly captured by the statements related to the range of L-A,L-Fmax for each class. Effects of DR and noise sensitivity on the classifications were significant. Differences between the class criteria for impact sounds with DR 60 dB/s and 30 dB/s were approximately 5 dBA. In addition, significant differences were found between the high and low noise sensitivity classification groups for impact sounds in the 50-60 dBA range. (C) 2015 Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S036013231530069X?via%3Dihubhttp://hdl.handle.net/20.500.11754/29246
ISSN
0360-1323; 1873-684X
DOI
10.1016/j.buildenv.2015.07.021
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ARCHITECTURAL ENGINEERING(건축공학부) > Articles
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