| Title |
Analysis of the Evaluation Factors for Urban Environmental Sounds to Create Sound Amenity |
| Authors |
Park Hyeon-Ku ; Kook Chan ; Jang Gil-Soo |
| Keywords |
Urban Environmental Sound ; Physical Parameter ; Sound Quality Index |
| Abstract |
The aim of this study is to find out some effective physical parameters for the evaluation of urban environmental sounds. For the reason, physical analysis was performed on the characteristics of urban environmental sounds divided into three parts depending on their features. Object sounds were classified into traffic sound, waster sound and spatial sounds. Traffice sound was selected because it is dominant sound in urban environment, and the sound of water was selected because it generally supplies pleasantness in contrast to traffic sound, Finally spatial sound was considered because it represents sound in various places of city having various behaviors and types of sound due to them. ??Physical analysis was carried out using sound quality indices based on Zwicker's loudness, LAeq (equivalent noise level), Ln(percentile noise level) and other acoustical attributes applied to previous studies. Physical parameters on the environmental sound were analysed by the factor analysis and the factors were classified into four characteristics; the amplitude of sound, the variation in the amplitude of sound, the frequency characteristics and the number of emerging peaks. |