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Comparisons of various approaches to low frequency in-situ measurements and corresponding models
RISE, SP – Sveriges Tekniska Forskningsinstitut.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Hållbar Samhällsbyggnad, Ljud och vibration.ORCID iD: 0000-0003-1095-3211
Lund University, Sweden.
2016 (English)In: Proceedings of the INTER-NOISE 2016 - 45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, German Acoustical Society (DEGA) , 2016, p. 1154-1161Conference paper, Published 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
German Acoustical Society (DEGA) , 2016. p. 1154-1161
Keywords [en]
Insulation, Sound, Transmission, Acoustic field measurement, Acoustic fields, Acoustic variables control, Acoustic waves, Acoustics, Architectural acoustics, Microphones, Sound insulation, Transmissions, Environmental noise levels, In-situ measurement, Insulation property, Low-frequency, Low-Frequency Noise, Low-frequency sounds, Microphone positions, Single-family house, Acoustic noise
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-42354Scopus ID: 2-s2.0-84994608008OAI: oai:DiVA.org:ri-42354DiVA, id: diva2:1383097
Conference
45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016, 21 August 2016 through 24 August 2016
Available from: 2020-01-07 Created: 2020-01-07 Last updated: 2020-01-07Bibliographically approved

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