BS EN ISO 8253-2:2009
Acoustics. Audiometric test methods Sound field audiometry with pure-tone and narrow-band test signals
| Označení normy: | BS EN ISO 8253-2:2009 |
| Počet stran: | 26 |
| Vydáno: | 2010-02-28 |
| ISBN: | 978 0 580 64855 7 |
| Status: | Standard |
BS EN ISO 8253-2:2009
This standard BS EN ISO 8253-2:2009 Acoustics. Audiometric test methods is classified in these ICS categories:
- 13.140 Noise with respect to human beings
- 17.140.50 Electroacoustics
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.