ISO 26101
Acoustics - Test methods for the qualification of free-field environments
Organization: | ISO |
Publication Date: | 15 March 2012 |
Status: | inactive |
Page Count: | 28 |
ICS Code (Acoustic measurements and noise abatement in general): | 17.140.01 |
scope:
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 specifies discrete-frequency and broad-band test methods for quantifying the performance of anechoic and hemi-anechoic spaces, defines the qualification procedure for an omni-directional sound source suitable for free-field qualification, gives details of how to present the results and describes uncertainties of measurement.
This International Standard 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 International Standard 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 International Standard describes the divergence loss method for measuring the free sound field performance of an acoustic environment.