Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Sound distribution in a room
4.1 General
4.2 Spatial sound distribution curves
5 Measurement of the spatial sound distribution curve
5.1 Specifications regarding the sound source used
for the test
5.2 Measurement instrumentation
5.3 Measurement path and points
5.4 Measurement procedure
5.5 Representation of the measured data
6 Parametric description of the measured spatial sound
distribution curve in view of evaluation of the acoustical
performance of workrooms
6.1 General
6.2 Distance ranges
6.3 Determination of the rate of spatial decay of sound
pressure levels per distance doubling, DL[2]
6.4 Determination of the excess of sound pressure level
with respect to a reference sound distribution curve,
DL[f]
6.5 Evaluation of measured data
7 Information to be recorded and reported
Annexes
A (normative) Performance requirements for the sound source
to be used for the test
B (normative) Correction of measured sound distribution curves
to account for differences in ground reflections and
source directivity
C (informative) Example of use of this International Standard
Bibliography