NEN-EN-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
inactive
| Organization: | NEN |
| Publication Date: | 1 February 1998 |
| Status: | inactive |
| Page Count: | 22 |
| ICS Code (Noise with respect to human beings): | 13.140 |
scope:
Specifies a reference threshold of hearing for the calibration of audiometric equipment used under definite conditions. The listeners are otologically normal persons in the age from 18 to 25 years inclusive. The data are given in numerical form for the preferred frequencies in the one-third-octave series from 20 Hz to 16 000 Hz in accordance with ISO 266.
Document History
December 1, 2019
Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffusefield listening conditions
This document specifies a reference threshold of hearing for the calibration of audiometric equipment used under the following conditions.
a) The sound field in the absence of the listener consists...
August 1, 2016
Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions - Amendment 1: Reference threshold of hearing at 20 Hz and 18 000 Hz under free-field listening conditions and at 20 Hz under diffuse-field listening conditions
A description is not available for this item.
January 1, 2006
Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions
This part of ISO 389 specifies a reference threshold of hearing for the calibration of audiometric equipment used under the following conditions. a) The sound field in the absence of the listener...
June 1, 2004
Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions
This part of ISO 389 specifies a reference threshold of hearing for the calibration of audiometric equipment used under the following conditions. a) The sound field in the absence of the listener...
NEN-EN-ISO 389-7
February 1, 1998
Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions
Specifies a reference threshold of hearing for the calibration of audiometric equipment used under definite conditions. The listeners are otologically normal persons in the age from 18 to 25 years...