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EN ISO 8253-2:2009

Acoustics - Audiometric test methods - Part 2: Sound field audiometry with pure-tone and narrow-band test signals (ISO 8253-2:2009)

Edition date: 2009-12-15
In Force
Summary: Dieser Teil von ISO 8253 legt wesentliche Eigenschaften des Prüfsignals, Anforderungen an das freie, dif-fuse, und quasi-freie Schallfeld und Verfahren der Schallfeld-Audiometrie mit reinen Tönen, frequenzmodu-lierten Tönen oder anderen schmalbandigen Prüfsignalen fest, die über einen oder mehrere Lautsprecher dargeboten werden. Der hauptsächliche Verwendungszweck ist die Bestimmung von Hörschwellenpegeln im Frequenzbereich von 125 Hz bis 8 000 Hz. Dieser Bereich kann aber auf 20 Hz bis 16 000 Hz erweitert wer-den. Dieser Teil von ISO 8253 enthält keine Festlegungen zur Verwendung von handgehaltenen Lautsprechern. Sprache als Prüfsignal wird hier nicht behandelt. Der Zweck dieses Teils von ISO 8253 ist es, sicherzustellen, dass Hörprüfungen mittels Schallfeld-Audio-metrie höchstmögliche Genauigkeit und Reproduzierbarkeit ergeben. Beispiele für die grafische Darstellung der Ergebnisse und Literaturhinweise werden in Anhang A angegeben.

ISO 8253-2:2009 specifies relevant test signal characteristics, requirements for free, diffuse, and quasi‑free sound fields, and procedures for sound field audiometry using pure tones, frequency-modulated tones or other narrow-band test signals presented by means of one or more loudspeakers. The primary purpose is the determination of hearing threshold levels in the frequency range 125 Hz to 8 000 Hz, but this range can be extended to 20 Hz to 16 000 Hz. ISO 8253-2:2009 does not include specifications for the use of hand-held loudspeakers. Speech as a test signal is not covered. The purpose of ISO 8253-2:2009 is to ensure that tests of hearing, using sound field audiometry, give as high a degree of accuracy and reproducibility as possible. Examples of graphical representations of the results are given.

L'ISO 8253-2:2009 spécifie les caractéristiques utiles des signaux d'essai, les exigences relatives aux champs acoustiques libre, diffus et quasi libre, ainsi que les modes opératoires s'appliquant à l'audiométrie en champ acoustique réalisée à l'aide de sons purs, de sons modulés en fréquence ou d'autres signaux d'essai de bande étroite émis par un ou plusieurs haut-parleurs. L'objectif principal est la détermination des niveaux liminaires d'audition dans la gamme de fréquences comprises entre 125 Hz et 8 000 Hz, celle-ci pouvant être étendue entre 20 Hz et 16 000 Hz. L'ISO 8253-2:2009 ne comporte pas de spécifications relatives à l'utilisation de haut-parleurs portatifs. Elle ne couvre pas les essais vocaux. L'objectif de l'ISO 8253-2:2009 est de garantir un degré de précision et de reproductibilité des essais d'audition effectués par audiométrie en champ acoustique aussi élevé que possible. Des exemples de représentations graphiques des résultats d'essai y sont donnés.
ICS: 13.140-Noise with respect to human beings
CTN: CEN/TC 211 - 6192

Otras Relaciones

Acuerdo de Viena ISO 8253-2:2009

Reemplazo Normas

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