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Empirical Study on the Correlation of Random Incidence Sound Absorption Results from Varying Reverberation Room Sizes
Technical Paper
2007-01-2380
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
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.
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Authors
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.Also In
References
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- Edwards, R. and Fung K., “Measurement uncertainty in random incidence sound absorption testing: part 1 formulation,” 2007-01-2227, SAE, 2007