On-site and laboratory evaluations of soundscape quality in recreational urban spaces

Lærke Cecilie Bjerre, Thea Mathilde Larsen, Anna Josefine Sørensen, Sébastien Santurette, Cheol-Ho Jeong

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Abstract

Regulations for quiet urban areas are typically based on sound level limits alone. However, the nonacoustic context may be crucial for subjective soundscape quality. Aims: This study aimed at comparing the role of sound level and nonacoustic context for subjective urban soundscape assessment in the presence of the full on-site context, the visual context only, and without context. Materials and Methods: Soundscape quality was evaluated for three recreational urban spaces by using four subjective attributes: loudness, acceptance, stressfulness, and comfort. The sound level was measured at each site and simultaneous sound recordings were obtained. Participants answered questionnaires either on site or during laboratory listening tests, in which the sound recordings were presented with or without each site’s visual context consisting of two pictures. They rated the four subjective attributes along with their preference toward eight sound sources. Results: The sound level was found to be a good predictor of all subjective parameters in the laboratory, but not on site. Although all attributes were significantly correlated in the laboratory setting, they did not necessarily covary on site. Moreover, the availability of the visual context in the listening experiment had no significant effect on the ratings. The participants were overall more positive toward natural sound sources on site. Conclusion: The full immersion in the on-site nonacoustic context may be important when evaluating overall soundscape quality in urban recreational areas. Laboratory evaluations may not fully reflect how subjective loudness, acceptance, stressfulness, and comfort are affected by sound level.
Original languageEnglish
JournalNoise & Health
Volume19
Issue number89
Pages (from-to)183-192
ISSN1463-1741
Publication statusPublished - 2017

Bibliographical note

The article is available open-access online in its HTML version: http://www.noiseandhealth.org/article.asp?issn=1463-1741;year=2017;volume=19;issue=89;spage=183;epage=192;aulast=Bjerre

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