Reverberation time in outdoor spaces of apartment complexes: A parametric study

Hong Seok Yang, Myung Jun Kim, Jian Kang, Sun Eung Jung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Comfortable sound environment of outdoor spaces in apartment complexes contributes to the improvement of the overall environmental quality. It is expected that RT (reverberation time) of outdoor spaces surrounded by multi-storey buildings depends on many designable factors such as the openness, volume and building layouts, etc. This study therefore aims to clarify the influential factors for RT in outdoor spaces surrounded by buildings with complicated topographical conditions. A series of measurements were carried out for 15 outdoor spaces in 6 apartment complexes with different building layouts. In particular, the effect of source-receiver distance on RT was also investigated for each site. The 15 outdoor spaces were categorised into 5 types as linear, parallel, L, U and courtyard building layouts. The result showed that RT at 500 Hz and 1000 Hz is relatively long compared to that at low and high frequencies. With increasing source-receiver distance, RT increases logarithmically. For the studied cases, the maximum RT at 500 Hz was about 4 sec. Empirical method considering the openness, averaged ray length and building high is also suggested, to predict RT approximately in the outdoor spaces. The overall results suggest that RT in outdoor spaces of apartment complexes is significantly influenced by source-receiver distance and building layouts.

Original languageEnglish
Title of host publication41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
Pages7577-7593
Number of pages17
StatePublished - 2012
Event41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012 - New York, NY, United States
Duration: 19 Aug 201222 Aug 2012

Publication series

Name41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
Volume9

Conference

Conference41st International Congress and Exposition on Noise Control Engineering 2012, INTER-NOISE 2012
Country/TerritoryUnited States
CityNew York, NY
Period19/08/1222/08/12

Fingerprint

Dive into the research topics of 'Reverberation time in outdoor spaces of apartment complexes: A parametric study'. Together they form a unique fingerprint.

Cite this