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eLibrary > 23/30433783 DC BS EN ISO 26101-2. Acoustics. Test methods for the qualification of the acoustic environment - Part 2. Determination of the environmental correction >

23/30433783 DC BS EN ISO 26101-2. Acoustics. Test methods for the qualification of the acoustic environment - Part 2. Determination of the environmental correction, 2023

ISO_DIS 26101-2 ed.1 - id.80878 Enquiry PDF (en).pdf [Go to Page]
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Qualification procedures for the acoustic environment [Go to Page]
4.1 General
4.2 Absolute comparison test
4.3 Methods based on room absorption
4.4 Inverse-square-law qualification of parallelepiped and cylindrical measurement surfaces
4.5 Approximate method based on an estimation of the equivalent absorption area A
5 Absolute comparison test [Go to Page]
5.1 General
5.2 Locations of reference sound source in test environment
5.3 Information to be recorded and reported
6 Determination of the environmental correction based on room absorption [Go to Page]
6.1 General
6.2 Reverberation method
6.3 Two-surface method
6.4 Determination of the equivalent absorption area A with a reference sound source (direct method)
6.5 Information to be recorded and reported
7 Inverse-square-law qualification of parallelepiped and cylindrical measurement surfaces [Go to Page]
7.1 General
7.2 Qualification criteria [Go to Page]
7.2.1 General
7.2.2 Maximum allowable deviations from inverse square law
7.2.3 Frequency range to be qualified
7.2.4 Maximum qualified volume
7.3 Installation of test sound sources and microphone traverses [Go to Page]
7.3.1 Test sound source requirements
7.3.2 Test sound source location
7.3.3 Microphone traverse paths for parallelepiped and cylindrical measurement surfaces
7.4 Test procedure [Go to Page]
7.4.1 Analysis bandwidth
7.4.2 Generation of sound
7.4.3 Spatial resolution of the measurement points
7.5 Information to be recorded and reported
8 Approximate method based on an estimation of the equivalent absorption area [Go to Page]
8.1 General
8.2 Information to be recorded and reported
Annex€A (informative) Uncertainty of the environmental correction
Bibliography [Go to Page]

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