To investigate the conditions for better living from a viewpoint of noise reduction, we measured the acoustic absorption coefficients of flooring materials in an audible frequency range from 10^2 to 10^4 Hz. Either wool or polyester carpets showed a distinct rise in absorption coefficients with an increase in frequency. On the other hand, the acoustic absorption of tatami showed a weaker frequency dependence and at low frequencies became higher than that of carpets. In the case of ordinary size, the room area produced no effect on the acoustic adsorption. Such furniture as beds was found to increase acoustic absorption coefficients at high frequencies.
雑誌書誌ID
収録物識別子タイプ
NCID
収録物識別子
AN10420713
書誌情報
日本女子大学紀要. 理学部
en : Journal of Japan Women's University. Faculty of science