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Comparisons of various approaches to low frequency in-situ measurements and corresponding models
RISE - Research Institutes of Sweden, Built Environment, Building Technology. (Ljud & Vibrationer, Sound & Vibration)ORCID iD: 0000-0003-0083-1122
RISE - Research Institutes of Sweden, Built Environment, Building Technology. (Ljud & Vibrationer, Sound & Vibration)
Lund University, LTH. (Byggnadsmekanik, Structural Mechanics)
2016 (English)In: Proceedings of the INTER-NOISE 2016: 45th International Congress and Exposition  on Noise Control Engineering: Towards a Quieter Future / [ed] Wolfgang Kropp, Otto von Estorff, Brigitte Schulte-Fortkamp, Berlin: German Acoustical Society (DEGA) , 2016, Vol. 45, 1154-1161 p., 07-4Conference paper, (Refereed)
Abstract [en]

New recommendations for environmental noise levels have been issued in Sweden. The permissible levels at facades of new buildings have been increased, which has resulted in a risk for higher indoor low frequency noise levels, since the recommended indoor levels are A-weighted. The additional Swedish low frequency third octave band requirements might be violated. Therefore, there is a need for reviewing how well façade insulation properties are manifested in measurements, and how accurate the measurement results indicate the indoor noise situation from the residents' perspective. In this paper, the results of façade insulation measurements are compared with corresponding models, with a special attention to associated challenges (e.g. to establish representative microphone positions in low frequency sound fields). The measurements are performed in a demonstrator house, which replicates a modern single family house. The models are evaluated both with respect to the total sound energy integrated over the entire room volumes, and as sampled sound fields, where the sample points may correspond to microphone positions. The congruence of the measured and the modelled results are analysed and discussed, as well as the relevance of different approaches

Place, publisher, year, edition, pages
Berlin: German Acoustical Society (DEGA) , 2016. Vol. 45, 1154-1161 p., 07-4
Series
Inter-noise; proceedings, ISSN 0105-175x
Keyword [en]
Insulation, Sound, Transmission, Low-frequency, Building Technologies, Room Modes, Measurements
Keyword [sv]
Ljudisolering, Fasadisolering, Ljudtransmission, Byggteknik, Lågfrekvens, Rumsmoder, Mätning
National Category
Other Civil Engineering
Identifiers
URN: urn:nbn:se:ri:diva-29623ISBN: 978-3-939296-11-9 (electronic)OAI: oai:DiVA.org:ri-29623DiVA: diva2:1096844
Conference
45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016
Projects
Urban Tranquility
Funder
Interreg Öresund-Kattegat-Skagerrak, 20200812
Available from: 2017-05-19 Created: 2017-05-19 Last updated: 2017-05-19Bibliographically approved

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Citation style
  • apa
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