ISO 26101-1:2021

Acoustics -- Test methods for the qualification of the acoustic environment -- Part 1: Qualification of free-field environments
Autor: ISO
Código ICS: 17.140.01


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 omni-directional 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. Annex D provides guidelines for the specification of test parameters and qualification criteria for referencing documents.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.

Especificaciones de la Norma
Fecha de Publicación 17/05/2021
Título Secundario Acoustique -- Méthodes d'essai pour la qualification de l'environnement acoustique -- Partie 1: Qualification des environnements en champ libre
Páginas Técnicas 22
Idioma Inglés