Comparison of measured and computer-modeled objective parameters for an existing coupled volume concert hall

David T. Bradley, Lily M. Wang

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

This paper details the comparison of a built coupled volume concert hall and a computergenerated model of the hall. Coupled volume spaces typically have an auxiliary volume connected to the main volume through an acoustically transparent aperture. In this type of space, architectural parameters such as volume size and surface absorption can be designed to produce a non-linear reverberant decay, known as double-slope decay. Objective reverberation and clarity parameters were calculated for the sound fields measured in the built hall and predicted in the computer modeled hall. These objective parameters were compared between the two modalities for several configurations of the hall to determine the accuracy of the computer modeling prediction scheme for coupled volume spaces. The results showed a high level of computer model accuracy in the high frequency range, with differences in reverberation parameters being less than 1 just noticeable difference (jnd). Lower frequencies proved computer modeling to be less accurate, particularly for the clarity parameter, which had differences up to 8 jnd.

Original languageEnglish (US)
Pages (from-to)79-90
Number of pages12
JournalBuilding Acoustics
Volume14
Issue number2
DOIs
StatePublished - Jun 2007

ASJC Scopus subject areas

  • Building and Construction
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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