BS 7636(1993) : 1993 AMD 10028
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
ACOUSTICS - AUDIOMETRIC TEST METHODS - SOUND FIELD AUDIOMETRY WITH PURE TONE AND NARROW-BAND TEST SIGNALS
15-07-1998
23-11-2012
Committees responsible
National foreword
Method
Introduction
1 Scope
2 Normative references
3 Definitions
4 Test signal characteristics
5 Sound field characteristics
6 Ambient noise levels in the test room
7 Preparation and instruction of test subject
8 Determination of hearing threshold level
9 Testing with a hearing aid
10 Screening audiometry
11 Reporting of data
12 Maintenance and calibration of equipment
Annexes
A (informative) Graphical display of results
B (informative) Correction values for 45 deg and 90
deg angles of incidence
C (informative) Bibliography
Tables
1 Microphone requirements for diffuse sound field
measurement
2 Maximum permissible ambient sound pressure levels
in one-third-octave bands, Lmax, for sound field
audiometry
A.1 Symbols for test conditions
B.1 Increase in sound pressure level at the ear closest
to the loudspeaker
Figures
A.1 Hearing threshold levels
A.2 Threshold sound pressure levels
Specifies relevant test signal characteristics, requirements for diffuse, free 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 using one or more loudspeakers. Does not include specifications for the use of hand-held loudspeakers. Does not cover speech as a test signal. Includes definitions, annexes, tables and diagrams. BS AMD 10028 RENUMBERS STANDARD
| Committee |
EH/1
|
| DevelopmentNote |
Renumbered and superseded by BS EN ISO 8253-2 (07/2004) Supersedes 90/51782 DC (06/2005)
|
| DocumentType |
Standard
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| Standards | Relationship |
| ISO 8253-2:2009 | Identical |
| EN ISO 8253-2:2009 | Identical |
| BS EN 60645-4:1995 | Audiometers Equipment for extended high-frequency audiometry |
| BS 5942-7:1987 | High fidelity audio equipment and systems; minimum performance requirements Specification for loudspeakers |
| IEC 60645-1:2017 | Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry |
| BS 7113:1989 | Specification for reference levels for narrow-band masking noise |
| ISO 8253-1:2010 | Acoustics Audiometric test methods Part 1: Pure-tone air and bone conduction audiometry |
| BS 2475:1964 | Specification for octave and one-third octave band-pass filters |
| ISO 6189:1983 | Acoustics Pure tone air conduction threshold audiometry for hearing conservation purposes |
| BS EN ISO 266:1997 | Acoustics. Preferred frequencies |
| BS 5969:1981 | Specification for sound level meters |
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