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Aircraft noise and speech intelligibility in an outdoor living space
Stockholm University, Faculty of Social Sciences, Department of Psychology.
Stockholm University, Faculty of Social Sciences, Department of Psychology.
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2014 (English)In: Journal of the Acoustical Society of America, ISSN 0001-4966, E-ISSN 1520-8524, Vol. 135, no 6, 3455-3462 p.Article in journal (Refereed) Published
Abstract [en]

Studies of effects on speech intelligibility from aircraft noise in outdoor places are currently lacking. To explore these effects, first-order ambisonic recordings of aircraft noise were reproduced outdoors in a pergola. The average background level was 47 dB L-Aeq. Lists of phonetically balanced words (L-ASmax,L- word = 54 dB) were reproduced simultaneously with aircraft passage noise (L-ASmax,L- noise = 72-84 dB). Twenty individually tested listeners wrote down each presented word while seated in the pergola. The main results were (i) aircraft noise negatively affects speech intelligibility at sound pressure levels that exceed those of the speech sound (signal-to-noise ratio, S/N < 0), and (ii) the simple A-weighted S/N ratio was nearly as good an indicator of speech intelligibility as were two more advanced models, the Speech Intelligibility Index and Glasberg and Moore's [J. Audio Eng. Soc. 53, 906-918 (2005)] partial loudness model. This suggests that any of these indicators is applicable for predicting effects of aircraft noise on speech intelligibility outdoors.

Place, publisher, year, edition, pages
2014. Vol. 135, no 6, 3455-3462 p.
National Category
Psychology
Identifiers
URN: urn:nbn:se:su:diva-106094DOI: 10.1121/1.4874625ISI: 000337110200049OAI: oai:DiVA.org:su-106094DiVA: diva2:735354
Note

AuthorCount:4;

Available from: 2014-07-25 Created: 2014-07-21 Last updated: 2017-12-05Bibliographically approved

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Alvarsson, Jesper J.Nordström, HenrikNilsson, Mats E.
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