ANSI S12.32 : 0
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
12-07-2002
English
INTRODUCTION
1 GENERAL
1.1 Scope and Purpose
1.2 Applicability
1.3 Measurement Uncertainty
1.4 Principal Requirements
1.5 Other Requirements
2 DEFINITIONS AND SYMBOLS
2.1 Definitions
2.2 Symbols and Recommended Units
3 DETERMINATION OF THE SIGNIFICANCE OF DISCRETE-
FREQUENCY COMPONENTS AND NARROW BANDS OF NOISE
3.1 General
3.2 Qualitative Procedure
3.3 Estimate of Standard Deviation
4 NUMBER OF MICROPHONE POSITIONS AND NOISE SOURCE
LOCATIONS
4.1 Introduction
4.2 General
4.3 Computational Procedures
5 ALTERNATIVE QUALIFICATION PROCEDURE FOR THE
MEASUREMENT OF DISCRETE-FREQUENCY COMPONENTS
5.1 Introduction
5.2 General
5.3 Instrumentation
5.4 Loudspeaker Test
5.5 Room Test
5.6 Computational Procedure
5.7 Qualification
5.8 Multiple Source Locations
6 REFERENCES
6.1 General References
6.2 Text References
6.3 Bibliography
TABLES
TABLE 1 Estimated standard deviation of sound power
level determination for discrete-frequency and
narrow-band noise sources in reverberation rooms
TABLE II Characterization of the presence of discrete-
frequency or narrow-band components, based upon
the spatial variation of the sound field
TABLE III Number of microphone positions required and
values of the constant K for determining
number of noise source locations
TABLE IV Maximum allowable sample standard deviations, s,
TABLE V Test frequencies for alternative qualification
of reverberation room facility for measuring
sound power levels of noise sources containing
significant discrete-frequency components
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