BS EN ISO 8253-2:2009 PDF

Scope: 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.

BS EN ISO 8253-2:2009 Referenced Document

IEC 60581-7:1986 High fidelity audio equipment and systems; Minimum performance requirements. Part 7 : Loudspeakers
IEC 60645-1 Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry*， 2017-03-14 Update
IEC 61672-1 Electroacoustics - Sound level meters - Part 1: Specifications*， 2013-09-01 Update
ISO 226 Acoustics — Normal equal-loudness-level contours*， 2023-03-29 Update
ISO 266 Acoustics - Preferred frequencies
ISO 389-7 Acoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions*， 2019-11-05 Update
ISO 8253-1 Acoustics - Audiometric test methods - Part 1: Pure-tone air and bone conduction audiometry*， 2010-11-01 Update

2010 BS EN ISO 8253-2:2010 Acoustics. Audiometric test methods. Sound field audiometry with pure-tone and narrow-band test signals
2010 BS EN ISO 8253-2:2009 Acoustics - Audiometric test methods - Sound field audiometry with pure-tone and narrow-band test signals
0000 BS EN ISO 8253-2:1998