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Correlation between sound insulation and occupants’ perception: Proposal of alternative single number rating of impact sound, part II
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
Simmons akustik och utveckling.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
Number of Authors: 3
2017 (English)In: Applied Acoustics, ISSN 0003-682x, Vol. 123, 143-151 p.Article in journal (Refereed) Published
Abstract [en]

A previous Swedish research project indicated the potential need for evaluating impact sound insulation from 20 Hz in buildings with lightweight constructions. This is a discrepancy compared to the commonly used frequency intervals starting from 50 or 100 Hz. The statistical significance of this groundbreaking suggestion was however not satisfactorily strong since the result was based upon a limited number of building objects.

The scope of the present paper is to secure the previous study by adding additional objects to the underlying database, thereby increasing the confidence of the results. The methodology is to perform impact sound insulation measurements in apartment buildings of various construction types and to perform questionnaire surveys among the residents. The measured sound insulation is compared to the subjective rating by the occupants in order to find the parameter giving the highest correlation with respect to frequency range and weighting.

The highest correlation was found when the impact sound insulation was evaluated from 25 Hz using a flat frequency-weighting factor. Frequencies below 50 Hz are of great importance when evaluating impact sound insulation in lightweight constructions

Place, publisher, year, edition, pages
2017. Vol. 123, 143-151 p.
National Category
Fluid Mechanics and Acoustics
Research subject
Engineering Acoustics
Identifiers
URN: urn:nbn:se:ltu:diva-62615DOI: 10.1016/j.apacoust.2017.03.014ScopusID: 2-s2.0-85015798378OAI: oai:DiVA.org:ltu-62615DiVA: diva2:1083845
Note

Validerad; 2017; Nivå 2; 2017-03-22 (andbra)

Available from: 2017-03-22 Created: 2017-03-22 Last updated: 2017-04-04Bibliographically approved
In thesis
1. Measurement and perception of sound insulation from 20 Hz between dwellings
Open this publication in new window or tab >>Measurement and perception of sound insulation from 20 Hz between dwellings
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 2017
Series
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544
National Category
Other Civil Engineering
Research subject
Engineering Acoustics
Identifiers
urn:nbn:se:ltu:diva-62843 (URN)978-91-7583-868-7 (ISBN)978-91-7583-869-4 (ISBN)
Public defence
2017-05-30, F531, Luleå Tekniska Universitet, 971 87 Luleå, 09:30 (English)
Supervisors
Funder
Swedish Research Council Formas
Note

Forskningsfinansiärer:

Sven Tyréns Stiftelse

Formas

Available from: 2017-04-05 Created: 2017-04-03 Last updated: 2017-04-05Bibliographically approved

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Citation style
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