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Environmental Acoustics in Architectural
Properties of Sound
PART TWO Room or Space Acoustics
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absorbers absorption coefficient acoustical consultant acoustical defects acoustical design acoustical materials acoustical problems acoustical treatment adequate air space aircraft Applied Acoustics architects architectural acoustics arena stage audience area auditorium background-noise level building C0NCRETE SLAB CARPET cavity resonators Chap concert halls construction direct sound doors ducts enclosures exterior FL00R PLAN floating floor floor area frequency GYPSUM B0ARD hearing conditions I3mm I6mm installed IS0L IS0LATI0N BLANKET isolation blanket J0IST layout listening loudness loudspeaker measures Noise Control noise level noise sources noisy opera houses partition performance PLASTER PLYW00D rating in decibels reduced requirements RESILIENT BAR resonators reverberation room-acoustical seats SECTI0N sound energy sound insulation sound pressure level sound source sound transmission class sound waves sound-absorbing materials sound-amplification system Sound-insulation values sound-reflective speech square foot kilograms stage STC rating STCb STCo STUD studio suspended ceiling Theater TILE tion transmission class rating walls WITH0UT