Pengaruh kepadatan kapuk terhadap angka serapan akustik
ABSTRACT This research was done to determine the absorbtivities of kapuk with various densities, by the standing wave method. The results indicate that absorbtivities of kapuk for 250 Hz., 500 Hz. and 1000 Hz are influenced by the densities. Whereas for low frequencies of (125 Hz.) and high frequenc...
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[Yogyakarta] : Universitas Gadjah Mada
1998
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