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Effects of sound types and sound levels on subjective environmental evaluations in different seasons

Jin, Y; Ji, H; Kang, J; (2020) Effects of sound types and sound levels on subjective environmental evaluations in different seasons. Building and Environment , 183 , Article 107215. 10.1016/j.buildenv.2020.107215. Green open access

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Abstract

Human beings live in an environment where various factors act together, therefore, it is essential to study the comprehensive effects of multiple factors, particularly the effects of their interaction on environmental evaluations. In this study, the effects of the interaction between sound types and sound levels on acoustic, thermal, and overall evaluations were explored by simulating typical outdoor temperatures in different seasons in a controllable environmental chamber. The results indicated that the acoustic evaluations were significantly higher for birdsong and slow-dance music than for dog barking, conversation, and traffic sound; additionally, the acoustic evaluations at the low sound level were always higher than those at the high sound level. In terms of the thermal evaluations, there was a significant variation in different seasons. In summer, birdsong and slow-dance music effectively improved subjects’ thermal evaluations, while a high sound level of dog barking, conversation, and traffic sound resulted in a decrease; in the transition season, all types of sounds resulted in a decline in the thermal evaluations; meanwhile, in winter and summer, dog barking, conversation, traffic sound and slow-dance music at the low sound level produced higher thermal comfort and thermal acceptability. In terms of the overall evaluations, birdsong and slow-dance music at the low sound level improved overall comfort, while dog barking, conversation, and traffic sound resulted in a significant decrease. For dog barking, conversation, traffic sound and fast-dance music, the overall evaluations at the low sound level were higher than those at the high sound level.

Type: Article
Title: Effects of sound types and sound levels on subjective environmental evaluations in different seasons
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.buildenv.2020.107215
Publisher version: https://doi.org/10.1016/j.buildenv.2020.107215
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
Keywords: severe cold region, sound type, sound level, interaction, subjective evaluation, different seasons
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10108413
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