The relative importance of visual and sound design in the rehabilitation of a bridge connecting a highly populated area and a park
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Van Renterghem, T
Sun, K
De Coensel, B
Botteldooren, D
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Hamburg, Germany
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Abstract
Audio-visual interactions can have an important effect on people's perception of the urban environment. The aim of this study is to research to what extent such measures can help in improving citizens' noise perception, and in extension, in increasing the general quality of the urban environment. Different renovation designs in a degraded area were put to the test by means of a virtual reality experiment. The test is performed with 100 normal hearing participants experiencing a walk over a visually and acoustically degraded bridge that connects a highly populated area to a park over a highway. Interventions to improve that state were both visualized and auralized. The Virtual Reality Environment is experienced by the participants with Oculus 3D glasses and headphones. The auralization includes noise abatement measures such as the addition of (low-height) noise barriers. The corresponding noise reduction was calculated in detail with the FDTD method, resulting in frequency-dependent insertion losses filtering the B-field (ambisonics) recordings made along the bridge. The participants are invited on several days, and exposed to the same audio-samples but with different visuals each time. Detailed questionnaires will help unraveling the importance of the auditive and visual stimuli when assessing the environmental quality. In the current paper, the setup of the experiment is discussed.
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INTER-NOISE and NOISE-CON Congress and Conference Proceedings
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© 2016 German Acoustical Society (DEGA). The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the conference's website for access to the definitive, published version.
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Environmental management
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Echevarria Sanchez, GM; Van Renterghem, T; Sun, K; De Coensel, B; Botteldooren, D, The relative importance of visual and sound design in the rehabilitation of a bridge connecting a highly populated area and a park, INTER-NOISE and NOISE-CON Congress and Conference Proceedings, 2016, pp. 4802-4808