BS EN ISO 389-7 : 2005
Withdrawn
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ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 7: REFERENCE THRESHOLD OF HEARING UNDER FREE-FIELD AND DIFFUSE-FIELD LISTENING CONDITIONS (ISO 389-7:2005)
Hardcopy , PDF
English
01-01-2005
06-12-2019
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Specification
Annex A (informative) - Notes on the derivation of the
reference thresholds of hearing
Bibliography
Provides a reference threshold of hearing for the calibration of audiometric equipment used under the following conditions: - The sound field in the absence of the listener consists of either a free progressive plane wave (free field) or a diffuse sound field, as specified in ISO 8253-2. In the case of a free field, the source of sound is directly in front of the listener (frontal incidence). - The sound signals are pure (sinusoidal) tones in the case of free-field conditions and one-third octave bands of (white or pink) noise in the case of diffuse-field conditions. - The sound pressure level is measured in the absence of the listener at the position where the centre of the listener's head would be. - Listening is binaural.
| Committee |
EH/1/1
|
| DevelopmentNote |
Supersedes 93/508224 DC. (10/2005) Supersedes 04/30095174 DC. (02/2006) Supersedes 15/30313896 DC. 2005 Edition Re-issued in October 2016 & incorporates AMD 1 2016. (10/2016)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| I.S. EN ISO 389-7:2005 | Identical |
| NBN EN ISO 389-7 : 2006 AMD 1 2016 | Identical |
| NEN EN ISO 389-7 : 2006 AMD 1 2016 | Identical |
| NF EN ISO 389-7 : 2006 AMD 1 2016 | Identical |
| DIN EN ISO 389-7:2006-04 | Identical |
| NS EN ISO 389-7 : 1998 | Identical |
| ISO 389-7:2005 | Identical |
| EN ISO 389-7:2005 | Equivalent |
| UNE-EN ISO 389-7:2006 | Identical |
| DIN EN ISO 389-7:1998-12 | Identical |
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