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Acoustic DesignEngineering DivisionNoise ControlSound InsulationBuilding AcousticsAircraft NoiseEditor's NotesAcoustic PerformanceUnderwater AcousticsNoise AssessmentCompletion TestingLevel MetersSpeech Transmission IndexReverberation TimeNoise ManagementWind TurbineBook ReviewSpeech IntelligibilityBuilding RegulationsConcert Hall