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ISO 26101

Acoustics - Test methods for the qualification of free-field environments

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Organization: ISO
Publication Date: 1 April 2017
Status: active
Page Count: 30
ICS Code (Acoustic measurements and noise abatement in general): 17.140.01
scope:

This document specifies methodology for qualifying acoustic spaces as anechoic and hemi-anechoic spaces meeting the requirements of a free sound field.

This document specifies discrete-frequency and broad-band test methods for quantifying the performance of anechoic and hemi-anechoic spaces, defines the qualification procedure for an omnidirectional sound source suitable for free-field qualification, gives details of how to present the results and describes uncertainties of measurement.

This document has been developed for qualifying anechoic and hemi-anechoic spaces for a variety of acoustical measurement purposes. It is expected that, over time, various standards and test codes will refer to this document in order to qualify an anechoic or hemi-anechoic space for a particular measurement.

In the absence of specific requirements or criteria, Annex A provides qualification criteria and measurement requirements to qualify anechoic and hemi-anechoic spaces for general purpose acoustical measurements.

This document describes the divergence loss method for measuring the free sound field performance of an acoustic environment.

Document History

ISO 26101
April 1, 2017
Acoustics - Test methods for the qualification of free-field environments
This document specifies methodology for qualifying acoustic spaces as anechoic and hemi-anechoic spaces meeting the requirements of a free sound field. This document specifies discrete-frequency and...
March 15, 2012
Acoustics - Test methods for the qualification of free-field environments
This International Standard specifies methodology for qualifying acoustic spaces as anechoic and hemianechoic spaces meeting the requirements of a free sound field. This International Standard...

References

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