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BSI 23/30433783 DC 2023

BSI 23/30433783 DC 2023

$13.70

BS EN ISO 26101-2. Acoustics. Test methods for the qualification of the acoustic environment – Part 2. Determination of the environmental correction

Published By Publication Date Number of Pages
BSI 2023 24
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PDF Catalog

PDF Pages PDF Title
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Qualification procedures for the acoustic environment
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
12 5 Absolute comparison test
5.1 General
13 5.2 Locations of reference sound source in test environment
5.3 Information to be recorded and reported
14 6 Determination of the environmental correction based on room absorption
6.1 General
6.2 Reverberation method
6.3 Two-surface method
15 6.4 Determination of the equivalent absorption area A with a reference sound source (direct method)
16 6.5 Information to be recorded and reported
7 Inverse-square-law qualification of parallelepiped and cylindrical measurement surfaces
7.1 General
17 7.2 Qualification criteria
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
18 7.3 Installation of test sound sources and microphone traverses
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
20 7.4 Test procedure
7.4.1 Analysis bandwidth
7.4.2 Generation of sound
7.4.3 Spatial resolution of the measurement points
21 7.5 Information to be recorded and reported
8 Approximate method based on an estimation of the equivalent absorption area 
8.1 General
22 8.2 Information to be recorded and reported
23 Annex€A (informative) Uncertainty of the environmental correction
24 Bibliography

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BSI 23/30433783 DC 2023
$13.70