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Measurement of the Sound Absorption Coefficient of Fiberboard by Two Microphone Method  

Kang, Chun Won (Department of Forest Products, Iksan National College)
Park, Hee Jun (Department of Forest Products, Iksan National College)
Jeong, In Soo (Department of Forest Products, Iksan National College)
Kim, Gwang Chul (Department of Forest Products, Iksan National College)
Publication Information
Journal of the Korean Wood Science and Technology / v.33, no.5, 2005 , pp. 45-49 More about this Journal
Abstract
The sound absorption coefficients of three types commercial fiberboard were experimentally measured under a relatively low frequency range of 50 to 1600 Hz by the two microphone transfer function method. The sound absorption coefficient of 30 mm thick fiberboard was higher than that of 18 mm thick fiberboard at the frequency range of 50 to 1.2 KHz. The sound absorption coefficient of medium density fiberboard was a little higher than that of low density fiberboard.
Keywords
sound absorption coefficinet; two microphone method; fiberboard;
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