XP ISO/TS 20065

XP ISO/TS 20065

July 2023
Standard Current

Acoustics - Objective method for assessing the audibility of tones in noise - Engineering method

This document describes a method for the objective determination of the audibility of tones in environmental noise.This document is intended to augment the usual method for evaluation on the basis of aural impression, in particular, in cases in which there is no agreement on the degree of the audibility of tones. The method described can be used if the frequency of the tone being evaluated is equal to, or greater than, 50 Hz. In other cases, if the tone frequency is below 50 Hz, or if other types of noise (such as screeching) are captured, then this method cannot replace subjective evaluation.NOTE      The procedure has not been validated below 50 Hz.The method presented herein can be used in continuous measurement stations that work automatically.

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Main informations

Collections

National standards and national normative documents

Thematics

Sécurité, QSE, Gestion des risques et SST

Publication date

July 2023

Number of pages

39 p.

Reference

XP ISO/TS 20065

ICS Codes

13.140   Noise with respect to human beings
17.140.01   Acoustic measurements and noise abatement in general

Classification index

S31-138

Print number

1

International kinship

ISO/TS 20065:2022
Sumary
Acoustics - Objective method for assessing the audibility of tones in noise - Engineering method

This document describes a method for the objective determination of the audibility of tones in environmental noise.

This document is intended to augment the usual method for evaluation on the basis of aural impression, in particular, in cases in which there is no agreement on the degree of the audibility of tones. The method described can be used if the frequency of the tone being evaluated is equal to, or greater than, 50 Hz. In other cases, if the tone frequency is below 50 Hz, or if other types of noise (such as screeching) are captured, then this method cannot replace subjective evaluation.

NOTE      The procedure has not been validated below 50 Hz.

The method presented herein can be used in continuous measurement stations that work automatically.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Mode opératoire de mesure
  • 5 Évaluation
  • 6 Calcul de l'incertitude de l'audibilité ¿L
  • 7 Recommandations pour la présentation des résultats
  • Annexe A Effet de fenêtre et effet de palissade
  • Annexe B Pouvoir de résolution de l'oreille humaine à des fréquences inférieures à 1 000 Hz et positions géométriques des bandes critiques -fréquences de coupure
  • Annexe C Masquage, seuil de masquage, indice de masquage
  • Annexe D Méthode itérative de détermination de l'audibilité ¿L
  • Annexe E Exemple de détermination de l'audibilité
  • Bibliographie
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