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The Impact of Sample Size on Sound Absorption Measured in a Small Reverberation Room
Technical Paper
2013-01-1967
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Sound absorption for multiple materials was measured in a small reverberation room using different sample sizes. The largest samples were cut to progressively smaller sizes to study the effect of sample size on sound absorption. The materials tested included three different recycled fibers, two PET fibers with facers, and one open-cell foam. These materials spanned low, medium, and high sound absorption over the range of test frequencies. The results for each material and each sample size are reported and compared. Comments are provided on sample size for labs with small reverberation chambers. These results will be considered in the development of an SAE test method for sound absorption using small reverberation rooms.
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Citation
Wyerman, B., Reed, D., and Krumnow, T., "The Impact of Sample Size on Sound Absorption Measured in a Small Reverberation Room," SAE Technical Paper 2013-01-1967, 2013, https://doi.org/10.4271/2013-01-1967.Also In
References
- ASTM E 1050 Standard Test Method for Impedance and Absorption of Acoustical materials Using a Tube, Two Microphones, and a Digital Frequency Analysis System American Society for Testing and Materials West Conshohocken, PA
- ASTM C 423 Standard Test Method for Sound Absorption and Sound Coefficients by the Reverberation Room Method American Society for Testing and Materials West Conshohocken, PA
- ISO 354 2003 Measurement of Sound Absorption in a Reverberation Room
- Sheng , G. Vehicle Noise, Vibration, and Sound Quality SAE International Warrendale, PA 978-0-7680-7513-7 2012 10.4271/R-400
- Allard , J. F. and Attala , N. Propagation of Sound in Porous Media Wiley West Sussex, UK 2009
- Ebbitt , G. , Remtema , T. , and Scheick , J. Sound Absorption in Small Cavities SAE Technical Paper 2013-01-1945 2013
- Instructions fir Use if the Alpha Cabin Rieter Automotive Management Ltd, Technical Report No. 848 1997
- Northwood , T. D. Absorption of Diffuse Sound by a Strip or Rectangular Patch of Absorptive Material Journal of the Acoustical Society of America 35 1963 1135
- Confidence Intervals http://sph.bu.edu