Determination of sound absorption coefficient of wood at different thickness as a function of frequency

Authors

Rose May Tampus Physics Department, University of San Carlos
Florence Ramirez Physics Department, University of San Carlos
Samantha Francine Cañete Physics Department, University of San Carlos

Abstract

This experiment has been designed to determine the sound absorption coefficient, α of wood sample of thickness 0.2 and 0.6 inches at different frequencies. The α of thin and thick plywoods at frequencies 660-1,000 Hz are within 0.90-0.98 and 0.82-0.90, respectively. The α of the wooden sample depends on the frequency of sound wave and sample thickness. The frequency range for which each wood slab has reached the maximum absorption coefficient α_max (>0.90) was likewise determined. The thinner sample attained its α_max at lower frequencies (660-
1,000Hz) while α is maximum at higher range of frequencies (1,000-2,000Hz) for the thicker sample.

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Issue

2013: Proceedings of the 31st Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2013-PB-21

Section

Poster Session PB

Published

2013-10-23

How to Cite

[1]

RM Tampus, F Ramirez, and SF Cañete, Determination of sound absorption coefficient of wood at different thickness as a function of frequency, Proceedings of the Samahang Pisika ng Pilipinas 31, SPP2013-PB-21 (2013). URL: https://proceedings.spp-online.org/article/view/SPP2013-PB-21.