Empirical Study on the Correlation of Random Incidence Sound Absorption Results from Varying Reverberation Room Sizes 2007-01-2380
Recent effort has focused on correlating random incidence absorption coefficients obtained in different sizes of reverberation rooms based on round robin testing of identical samples in a database driven approach. An alternate approach presented here is to correlate random incidence sound absorption coefficients among different reverberation rooms using an apparent linear relationship between sound absorption coefficients and a geometric property of the test samples. Linearity can be judged in relation to the uncertainty of each individual measurement. The study will encompass experimental work on three different sizes of reverberation rooms for both a single layer material and a multi-layered material. By examining the different sound absorption coefficient values from each size of room, as a function of geometric parameters, we illustrate the quantitative correlation that might be established between the different sizes reverberation rooms.
Citation: Fung, K. and Edwards, R., "Empirical Study on the Correlation of Random Incidence Sound Absorption Results from Varying Reverberation Room Sizes," SAE Technical Paper 2007-01-2380, 2007, https://doi.org/10.4271/2007-01-2380. Download Citation
Author(s):
Kent Fung, Russell Edwards
Affiliated:
Lear Corporation, Luk USA LLC
Pages: 10
Event:
SAE 2007 Noise and Vibration Conference and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Noise measurement
Test equipment and instrumentation
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