ISO 389-7:1996Withdrawn

Acoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions

Acoustique — Zéro de référence pour l'étalonnage d'équipements audiométriques — Partie 7: Niveau liminaire de référence dans des conditions d'écoute en champ libre et en champ diffus

Abstract / scope

Specifies a reference threshold of hearing for the calibration of audiometric equipment used under definite conditions. The listeners are otologically normal persons in the age from 18 to 25 years inclusive. The data are given in numerical form for the preferred frequencies in the one-third-octave series from 20 Hz to 16 000 Hz in accordance with ISO 266.

Life cycle

Replaced by

ISO 389-7:2005WithdrawnAcoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditionsInternational Standard · Published 3 Nov 2005 · ISO/TC 43