Comparisons of various approaches to low frequency in-situ measurements and corresponding models

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

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.

Details

Authors
Organisations
External organisations
  • SP Technical Research Institute of Sweden
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Building Technologies

Keywords

  • Insulation, Sound, Transmission
Original languageEnglish
Title of host publicationProceedings of the INTER-NOISE 2016 - 45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future
PublisherGerman Acoustical Society (DEGA)
Pages1154-1161
Number of pages8
Publication statusPublished - 2016 Aug 21
Publication categoryResearch
Peer-reviewedYes
Event45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016 - Hamburg, Germany
Duration: 2016 Aug 212016 Aug 24

Conference

Conference45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016
CountryGermany
CityHamburg
Period2016/08/212016/08/24