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Wednesday, July 10 • 12:30 - 12:50
COMPONENTS OF VARIANCE IN REVERBERATION TIME MEASUREMENT – PART 1: FIELD TESTING ROOMS OF LIGHTWEIGHT CONSTRUCTION

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This paper uses analysis of variance (ANOVA) and a specific design of experiment (DOE) and construction choice to isolate the component of variance associated with the part (or room) being measured along with individual contributions of measurement uncertainty from the measurement system and the person making the measurement. It demonstrates how the gauge repeatability and reproducibility (GRR) technique can be used to identify the variability in reverberation time (RT) measurement over the frequency range 100-3150Hz as an individual part of the process associated with field sound insulation testing in the UK. The experiment uses the measurement of reverbera-tion time associated with the 'interrupted source method' from EN ISO 354: 2003 Keywords: Reverberation Time, ANOVA, Repeatability, Reproducibility

Moderators
JM

Jeffrey Mahn

Research Officer, National Research Council Canada

Authors

Wednesday July 10, 2019 12:30 - 12:50 EDT
St-Laurent 4
  T11 Room & build. acoustics, SS03 Measur & predict of snd insul