The difficulties of simulating the acoustics of an empty rectangular room with an absorbing ceiling

Gerd Marbjerg, Jonas Brunskog*, Cheol-Ho Jeong

*Corresponding author for this work

    Research output: Contribution to journalJournal articleResearchpeer-review

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    Abstract

    In this study, simulations of a scale model of an unfurnished rectangular room with an absorbing ceiling using an energy-based geometrical acoustic model and a phased geometrical acoustic model are compared to measurements. This room can represent a typical classroom or office. This comparison concluded that the phased model can capture more details of the sound field, particularly at low frequencies. For accurate predictions, precise surface descriptions are needed for the phased GA method, which are not always available. The main drawback of the phased model is a longer calculation time.
    Original languageEnglish
    JournalApplied Acoustics
    Volume141
    Pages (from-to)35-45
    Number of pages11
    ISSN0003-682X
    DOIs
    Publication statusPublished - 2018

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