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Psychoacoustic, physical, and perceptual features of restaurants: A field survey in Singapore
KTH, School of Computer Science and Communication (CSC), Speech, Music and Hearing, TMH, Music Acoustics. Nanyang Technological University, Singapore.ORCID iD: 0000-0001-8121-9263
2015 (English)In: Applied Acoustics, ISSN 0003-682X, E-ISSN 1872-910X, Vol. 92, 47-60 p.Article in journal (Refereed) Published
Abstract [en]

Sound is a multi-faceted phenomenon and a critical modality in all kinds of sevicescapes. At restaurants, our senses are intensively stimulated. They are social places that depend on acoustic design for their success. Considering the large economic interests, surprisingly little empirical research on the psychoacoustics of restaurants is available. Contributing to theory building, this article proposes a typology of designed and non-designed sonic elements in restaurants. Results from a survey of 112 restaurants in Singapore are presented, with a focus on one element of the typology, namely interior design materials. The collected data included on-site sound level, audio recordings from which psychoacoustic descriptors such as Loudness and Sharpness were calculated, perceptual ratings using the Swedish Soundscape Quality protocol, and annotations of physical features such as Occupancy. We have introduced a measure, Priciness, to compare menu cost levels between the surveyed restaurants. Correlation analysis revealed several patterns: for example, that Priciness was negatively correlated with Loudness. Analysis of annotations of interior design materials supported a classification of the restaurants in categories of Design Style and Food Style. These were investigated with MANOVA, revealing significant differences in psychoacoustic, physical, and perceptual features between categories among the surveyed restaurants: for example, that restaurants serving Chinese food had the highest prevalence of stone materials, and that Western-menu places were the least loud. Some implications for managers, acoustic designers, and researchers are discussed. (C) 2015 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2015. Vol. 92, 47-60 p.
Keyword [en]
soundscapes, environmental quality, psychoacoustics, perceptual features, interior design, restaurants
National Category
Fluid Mechanics and Acoustics Design Architecture
Research subject
Art, Technology and Design
Identifiers
URN: urn:nbn:se:kth:diva-164416DOI: 10.1016/j.apacoust.2015.01.002ISI: 000350937000007Scopus ID: 2-s2.0-84922778369OAI: oai:DiVA.org:kth-164416DiVA: diva2:808192
Note

QC 20150427

Available from: 2015-04-27 Created: 2015-04-17 Last updated: 2017-12-04Bibliographically approved
In thesis
1. Sound perception and design in multimodal environments
Open this publication in new window or tab >>Sound perception and design in multimodal environments
2015 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This dissertation is about sound in context. Since sensory processing is inherently multimodal, research in sound is necessarily multidisciplinary. The present work has been guided by principles of systematicity, ecological validity, complementarity of  methods, and integration of science and art. The main tools to investigate the mediating relationship of people and environment through sound have been empiricism and psychophysics. Four of the seven included papers focus on perception. In paper A, urban soundscapes were reproduced in a 3D installation. Analysis of results from an experiment revealed correlations between acoustic features and physiological indicators of stress and relaxation. Paper B evaluated soundscapes of different type. Perceived quality was predicted not only by psychoacoustic descriptors but also personality traits. Sound reproduction quality was manipulated in paper D, causing two effects on source localisation which were explained by spatial and semantic crossmodal correspondences. Crossmodal correspondence was central in paper C, a study of colour association with music. A response interface employing CIE Lab colour space, a novelty in music emotion research, was developed. A mixed method approach supported an emotion mediation hypothesis, evidenced in regression models and participant interviews. Three papers focus on design. Field surveys and acoustic measurements were carried out in restaurants. Paper E charted relations between acoustic, physical, and perceptual features, focussing on designable elements and materials. This investigation was pursued in Paper F where a taxonomy of sound sources was developed. Analysis of questionnaire data revealed perceptual and crossmodal effects. Lastly, paper G discussed how crossmodal correspondences facilitated creation of meaning in music by infusing ecologically founded sonification parameters with visual and spatial metaphors. The seven papers constitute an investigation into how sound affects us, and what sound means to us.

Abstract [sv]

Denna doktorsavhandling handlar om ljud i sammanhang. Eftersom informationsbehandling genom sinnena alltid är multimodal så kräver ljudforskning en tvärvetenskaplig forskningsansats. Arbetet i denna avhandling har vägletts av principer såsom systematik, ekologisk validitet, samspel mellan metoder, och integration av vetenskap och konst. De viktigaste redskapen för att undersöka den ömsesidiga påverkan mellan människa och miljö genom ljud har varit empiri och psykofysik.Fyra artiklar handlar om perception. I artikel A återskapades urbana ljudlandskap i en 3D-ljudinstallation. Analys av experimentresultat avslöjade samband mellan akustiska mått och fysiologiska markörer av stress och avslappning.  Artikel B utvärderade olika typer av ljudlandskap. Upplevd kvalitet kunde prediceras inte bara av psykoakustiska mått utan även av personlighetsdrag. Ljudåtergivningskvalitet manipulerades i artikel D och orsakade två effekter på lokalisering av en ljudkälla vilka förklarades av rumslig och semantisk korsmodala kopplingar. Korsmodalitet var huvudpunkten i artikel C, en studie av färgassociation till musik. Ett användargränssnitt utvecklades som använder färgrymden CIE Lab, en nyhet i forskningfältet musik och känslor. En abduktiv metod stödde hypotesen att känslouttryck medierar korsmodala kopplingar, vilket framgick av regressionsmodeller och intervjuer med försökspersonerna.Tre artiklar handlar om design. Fältundersökningar och ljudmätningar utfördes i restauranger. Artikel E kartlade samband mellan akustiska, fysiska och perceptuella särdrag, med fokus på formbara element och material. Detta arbete fortsattes i artikel F varigenom en taxonomi av ljudkällor utvecklades. Analys av enkätdata avslöjade perceptuella och korsmodala effekter. Slutligen, artikel G diskuterade hur korsmodala kopplingar främjade meningsskapande i musik genom att ekologiskt motiverade sonifikationsparametrar samverkade med visuella och spatiala uttryck. De sju artiklarna utgör landmärken i avhandlingens utforskande av hur ljud påverkar oss, och vad ljud betyder för oss.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2015. 67 p.
Series
TRITA-CSC-A, ISSN 1653-5723 ; 2015:17
Keyword
sound, perception, design, multimodal, environment, soundscape, music, listening, crossmodal, psychoacoustics, psychophysiology, personality trait, emotion, appraisal, aesthetics, colour, correlation, regression, classification, sonification
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering Interaction Technologies Music Other Physics Topics Applied Psychology
Research subject
Speech and Music Communication
Identifiers
urn:nbn:se:kth:diva-177271 (URN)978-91-7595-771-5 (ISBN)
Public defence
2015-12-11, Kollegiesalen, Brinellvägen 8, KTH, Stockholm, 10:00 (English)
Opponent
Supervisors
Note

QC 20151118

Available from: 2015-11-18 Created: 2015-11-17 Last updated: 2015-11-19Bibliographically approved

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