There is a need for a model that identifies underlying dimensions of soundscape perception, and which may guide measurement and improvement of soundscape quality. With the purpose to develop such a model, a listening experiment was conducted. One hundred listeners measured 50 excerpts of binaural recordings of urban outdoor soundscapes on 116 attribute scales. The average attribute scale values were subjected to principal components analysis, resulting in three components: Pleasantness, eventfulness, and familiarity, explaining 50, 18 and 6% of the total variance, respectively. The principal-component scores were correlated with physical soundscape properties, including categories of dominant sounds and acoustic variables. Soundscape excerpts dominated by technological sounds were found to be unpleasant, whereas soundscape excerpts dominated by natural sounds were pleasant, and soundscape excerpts dominated by human sounds were eventful. These relationships remained after controlling for the overall soundscape loudness (Zwicker’s ), which shows that ‘informational’ properties are substantial contributors to the perception of soundscape. The proposed principal components model provides a framework for future soundscape research and practice. In particular, it suggests which basic dimensions are necessary to measure, how to measure them by a defined set of attribute scales, and how to promote high-quality soundscapes.
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November 2010
November 24 2010
A principal components model of soundscape perceptiona)
Östen Axelsson;
Östen Axelsson
Gösta Ekman Laboratory: Institute of Environmental Medicine, Karolinska Institutet, and Department of Psychology,
Stockholm University
, SE-106 91 Stockholm, Sweden
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Mats E. Nilsson;
Mats E. Nilsson
c)
Gösta Ekman Laboratory: Institute of Environmental Medicine, Karolinska Institutet, and Department of Psychology,
Stockholm University
, SE-106 91 Stockholm, Sweden
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Birgitta Berglund
Birgitta Berglund
Gösta Ekman Laboratory: Institute of Environmental Medicine, Karolinska Institutet, and Department of Psychology,
Stockholm University
, SE-106 91 Stockholm, Sweden
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c)
Author to whom correspondence should be addressed. Electronic mail: mats.nilsson@psychology.su.se
a)
Part of this research was presented in “Soundscape assessment,” at the 149th Meeting of the Acoustical Society of America, Vancouver, Canada, May 2005.
J. Acoust. Soc. Am. 128, 2836–2846 (2010)
Article history
Received:
December 21 2008
Accepted:
August 31 2010
Citation
Östen Axelsson, Mats E. Nilsson, Birgitta Berglund; A principal components model of soundscape perception. J. Acoust. Soc. Am. 1 November 2010; 128 (5): 2836–2846. https://doi.org/10.1121/1.3493436
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