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

This standard was last reviewed* in 2014.

*ISO standards are reviewed every five years.


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.


  • Document published on: 2009-12-15
    Edition: 2 (Monolingual) ICS: 13.140
    Status: Published Stage: 90.93 (2014-12-15)
    TC/SC: ISO/TC 43 Number of Pages: 16
  • Revises: ISO 8253-2:1992

  • No corrigenda or amendments available

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