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  • Using Virtual Reality for assessing the role of noise in the audio-visual design of an urban public space

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    De Coensel165135-Accepted.pdf (1.658Mb)
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    Accepted Manuscript (AM)
    Author(s)
    Echevarria Sanchez, Gemma Maria
    Van Renterghem, Timothy
    Sun, Kang
    De Coensel, Bert
    Botteldooren, Dick
    Griffith University Author(s)
    De Coensel, Bert
    Year published
    2017
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    Abstract
    Sound planning is not often included in the urban design process despite the well-known audio-visual interactions of human perception. A methodology to compare the overall appreciation of future renovation alternatives of urban public spaces using Virtual Reality Technology is proposed. This method is applied to assess the role of noise in the overall appreciation of a walk on a bridge crossing a highway. The auralization is a dynamic 3D surround based on B-format recordings (ambisonics), filtered by means of full-wave numerical calculations obtaining the sound field behind noise barriers along the bridge's edge. Four different ...
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    Sound planning is not often included in the urban design process despite the well-known audio-visual interactions of human perception. A methodology to compare the overall appreciation of future renovation alternatives of urban public spaces using Virtual Reality Technology is proposed. This method is applied to assess the role of noise in the overall appreciation of a walk on a bridge crossing a highway. The auralization is a dynamic 3D surround based on B-format recordings (ambisonics), filtered by means of full-wave numerical calculations obtaining the sound field behind noise barriers along the bridge's edge. Four different styles of visual street design including different noise barrier heights in combination with the 4 corresponding predicted sound fields were evaluated for their pleasantness by 71 normal-hearing participants on 4 separate days. Each day participants experienced all the visual environments with only one soundscape (to elude direct sound comparison) and anything related to sound was not mentioned in the first part of the experiment. Even in this non-focussed context, a statistically significant effect of the sound environment on the overall appreciation was found. In general, the pleasantness increases with traffic noise level reduction, but the visual design has a stronger impact. By mentioning the soundscape while introducing the evaluation, slightly lower (but statistically significantly different) pleasantness ratings were obtained. Instead of increasing noise barrier height, improving the visual design of a lower barrier seems more effective to increase pleasantness. Visual designs including vegetation strongly outperform others. The virtual experience was rated as immersive and realistic.
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    Journal Title
    Landscape and Urban Planning
    Volume
    167
    DOI
    https://doi.org/10.1016/j.landurbplan.2017.05.018
    Copyright Statement
    © 2017 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
    Subject
    Environmental Sciences
    Engineering
    Built Environment and Design
    Science & Technology
    Social Sciences
    Life Sciences & Biomedicine
    Physical Sciences
    Ecology
    Publication URI
    http://hdl.handle.net/10072/401080
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    • Journal articles

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