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Indoor sound environments and visual media displays: A case study on canteens

Ye, K; Luo, H; Kang, J; Wu, S; (2020) Indoor sound environments and visual media displays: A case study on canteens. Building and Environment , 176 , Article 106831. 10.1016/j.buildenv.2020.106831. (In press).

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Abstract

Previous studies have shown that human senses interact with each other. In this study, an experiment was conducted in a dining space to find methods for improving the indoor sound environment through audio-visual interaction. Differences among diners' conversation behaviours were collected on the basis of acoustic measurements before and after displaying visual media content. Acoustic perception and feelings of the diners were analysed through a survey questionnaire. Four types of content (different, dynamic, transformation, foci), three positions (front, corner, side), and three brightness levels (bright, moderate, dark) were compared. It was found that displaying visual media content reduced the sound pressure level by 2.1 dB in 10 s. Furthermore, playing media content attracted people's attention and reduced 2% of the total conversation duration among 12% of the diners, indirectly improving the acoustic environment. Last, results of the administered questionnaire show that diners' acoustic comfort and subjective perception of loudness improved within 0.53 points after media playback.

Type: Article
Title: Indoor sound environments and visual media displays: A case study on canteens
DOI: 10.1016/j.buildenv.2020.106831
Publisher version: https://doi.org/10.1016/j.buildenv.2020.106831
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: public indoor space, visual media content, sound pressure level, conversation frequency, subjective evaluation
UCL classification: UCL
UCL > Provost and Vice Provost Offices
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/10095132
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