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A virtual design studio for low frequency impact sound from walking
RISE Research Institutes of Sweden, Built Environment, Building and Real Estate.ORCID iD: 0000-0001-7603-941x
Chalmers University of Technology, Sweden.
2021 (English)In: Acta Acustica, ISSN 2681-4617, Vol. 5, article id 40Article in journal (Refereed) Published
Abstract [en]

Experience with wooden multi-storey houses have shown that impact sound insulation is one of most critical issues to ensure a good indoor environment. Even in cases where the impact sound insulation is fulfilled, people perceive the sound from e.g. walking neighbours as very disturbing. To investigate the subjective perception, a test facility is needed which allows for a coherent evaluation of different floor designs by listening test. The facility should ensure, that when comparing different floors, the same excitation by a walker and the same receiving room are involved. Only the floor design should be changed. As a consequence the spread in the data will only be due to the spread in the perception by subjects. In this paper a virtual design tool for low frequency impact sound insulation is presented, which consists of four parts; measured walking forces, floor models, an auralisation system which consists of a grid of loudspeakers simulating the vibration of the floor and a receiving room furnished as a common living room. In a pilot study a listening test is carried out for 13 different floors with different impact sound spectra at frequencies below 100 Hz. The results indicate that the judged annoyance strongly correlates with the judged loudness. However, there is a substantial spread observed in between the subjects participating in the listening tests. To understand this spread, a more extended study is needed with more participants and a classification of the subjects with respect to criteria such as noise sensitivity or age.

Place, publisher, year, edition, pages
European Acoustics Association, EAA , 2021. Vol. 5, article id 40
Keywords [en]
Impact sound insulation, Subjective perception, Virtual lab environment, Wooden floors, Acoustic noise, Acoustic variables control, Audition, Floors, Sound insulating materials, Different floors, Impact sound, Listening tests, Lower frequencies, Multi-storey house, Subjective perceptions, Virtual design studio, Virtual lab, Sound insulation
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:ri:diva-56704DOI: 10.1051/aacus/2021033Scopus ID: 2-s2.0-85115334628OAI: oai:DiVA.org:ri-56704DiVA, id: diva2:1604011
Note

Export Date: 28 September 2021; Article; Correspondence Address: Kropp, W.; Applied Acoustics, Sweden; email: wolfgang.kropp@chalmers.se; Funding details: FR-2016/0005; Funding text 1: The work has been funded by Formas – a Swedish Research Council for Sustainable Development – under grant agreement FR-2016/0005.

Available from: 2021-10-18 Created: 2021-10-18 Last updated: 2023-05-26Bibliographically approved

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Amiryarahmadi, Nata

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  • apa
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