Cause and perception of amplitude modulation of heavy-weight impact sounds in concrete wall structures
- Authors
- Lee, Sinyeob; Hwang, Dukyoung; Park, Junhong; Jeon, Jin Yong
- Issue Date
- Dec-2015
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Heavy-weight floor impact sound; Amplitude-modulation; Concrete wall construction; Sound perception
- Citation
- BUILDING AND ENVIRONMENT, v.94, pp.785 - 792
- Indexed
- SCIE
SCOPUS
- Journal Title
- BUILDING AND ENVIRONMENT
- Volume
- 94
- Start Page
- 785
- End Page
- 792
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/155740
- DOI
- 10.1016/j.buildenv.2015.04.020
- ISSN
- 0360-1323
- Abstract
- This study investigated amplitude-modulation effects on the heavy-weight floor impact sound caused by a vibration of concrete wall construction. The fundamental resonance of a floor in concrete wall construction consists of two closely spaced vibration modes. These modes were identified from experimental modal analysis of an actual multi-story building. The modes corresponded to in-phase and out-of-phase vibrations of the upper and lower floors. The rigidity of the side walls had influence on the difference between the natural frequencies of the two modes. Low-frequency modulated sounds were generated in a room by the simultaneous excitations of the two vibration modes. The heavy-weight impact sounds were analyzed using auditory experiments to determine the amplitude-modulation effects on the perceived annoyance. The highly modulated impact sounds were judged to be 3-5 dB more annoying than the one having the same level without modulation. Consequently, impact sound transmission from floors connected by less rigid side walls exhibited lower annoyance.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 건축공학부 > 1. Journal Articles
- 서울 공과대학 > 서울 기계공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/155740)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.