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Sabines Experiments and Formula for Reverberation Period
Loudness and NoiseWebers LawPietro Blaserna upon Loud
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A. H. Davis Absorption Coefficients acoustic acoustic conditions ACOUSTIC PLASTER acoustical materials air-borne sound asbestos audience auditorium battens bitumen Calicel Celotex Corporation cement centres coats coefficient of absorption construction cork Cormat cycles per second decibels diagram diaphragm echo effect feet felt fibres flats floating floor Frederick Gibberd Frequency cycles Frequency in cycles G. A. Sutherland hall Honeywill and Stein impact noises Insulation Board intensity joists kind permission layer loud-speaker loudness magnesite Messrs metal method microphone moving-coil nailed National Physical Laboratory Noise Reduction Coefficient painted panels partition perforated phons plaster present produce Professor Floyd quilting rarefaction reduction reflected remarks resonance reverberation rock wool Roger Smith rubber Sabine Sabine's screed seat skirting slabs slag wool sound-absorption sound-insulation sound-waves speaker speech structural floor studding surface tests Thermacoust thickness tiles tion Treetex vibrations voice wall Wallace Sabine weight Wellinlith whilst wood