This test method specifies procedures for measuring reverberation time and other room acoustic parameters in ordinary rooms such as offices, classrooms, lecture halls, and residential spaces. Reverberation time (T30 or T20) is a fundamental acoustic property that affects speech intelligibility, sound quality, and acoustic comfort. It is essential for designing spaces with appropriate acoustic characteristics, verifying construction specifications, and ensuring compliance with building standards. Architects, acousticians, and building professionals rely on these measurements to evaluate and optimize room acoustic performance. ISO 17025 accreditation guarantees accurate measurements following standardized methodology.
What it measures
Reverberation time (T30, T20, EDT)
Frequency-dependent acoustic absorption
Early decay time and room acoustic parameters
Clarity index (C50) and definition (D50)
Speech transmission index (STI) indicators
๐ฉ๐ช
DIN EN ISO 3382-1
๐ฌ๐ง
BS EN ISO 3382-1
๐ซ๐ท
NF EN ISO 3382-1
๐ฎ๐น
UNI EN ISO 3382-1
๐ช๐ธ
UNE EN ISO 3382-1
๐ณ๐ฑ
NEN EN ISO 3382-1
๐ฉ๐ช
DIN EN 60268-16
๐ฌ๐ง
BS EN 60268-16
๐ซ๐ท
NF EN 60268-16
๐ฎ๐น
UNI EN 60268-16
๐ช๐ธ
UNE EN 60268-16
๐ณ๐ฑ
NEN EN 60268-16
Architectural and acoustic designBuilding construction and commissioningEducational facilities managementBroadcasting and media productionHospitality and entertainment venues
Related Standards
ISO 3382-1Acoustics - Measurement of room acoustic parameters - Part 1: Performance spaces
EN 60268-16Sound system equipment - Objective rating of speech intelligibility by speech transmission index
ISO 140-4Acoustics - Measurement of sound insulation in buildings and of building elements - Part 4: Field measurements of airborne sound insulation between rooms
Scope