AS/NZS ISO 8253.2:2019
Current
The latest, up-to-date edition.
Acoustics - Audiometric test methods Sound field audiometry with pure-tone and narrow-band test signals
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English
11-03-2019
The objective of this Standard is to specify 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.
| Committee |
AV-003
|
| DocumentType |
Standard
|
| ISBN |
978 1 76072 401 6
|
| Pages |
16
|
| PublisherName |
Standards Australia
|
| Status |
Current
|
| Supersedes |
This part of ISO 8253 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.
This part of ISO 8253 does not include specifications for the use of hand-held loudspeakers. Speech as a test signal is not covered.
The purpose of this part of ISO 8253 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 in Annex A.
| Standards | Relationship |
| ISO 8253-2:2009 | Identical |
First published as AS ISO 8253.2-2009.
Jointly revised and redesignated as AS/NZS ISO 8253.2:2019.
| ISO 226:2003 | Acoustics — Normal equal-loudness-level contours |
| ISO 389-7:2005 | Acoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions |
| IEC 61672-1:2002 | Electroacoustics - Sound level meters - Part 1: Specifications |
| IEC 60581-7:1986 | High fidelity audio equipment and systems: Minimum performancerequirements. Part 7: Loudspeakers |
| ISO 266:1997 | Acoustics — Preferred frequencies |
| IEC 60645-1:2017 | Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry |
| ISO 8253-1:2010 | Acoustics — Audiometric test methods — Part 1: Pure-tone air and bone conduction audiometry |
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