ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 4: REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE

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Hardcopy , PDF

Language(s)

English

Published date

01-01-1999

Publisher

National Standards Authority of Ireland

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Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Specifications
Annex A (informative) Notes on the derivation of the reference
levels
Annex B (informative) Bibliography

Defines reference levels for narrow-band masking noise presented by air conduction from an earphone in pure-tone audiometry.

DevelopmentNote	Supersedes I.S. EN 28798. (04/2005)
DocumentType	Standard
Pages	18
PublisherName	National Standards Authority of Ireland
Status	Current
Supersedes	I.S. EN 28798:1992

Standards	Relationship
NBN EN ISO 389-4 : 1999	Identical
NS EN ISO 389-4 : 1ED 1999	Identical
BS EN ISO 389-4:1999	Identical
NF EN ISO 389-4 : 1999	Identical
NEN EN ISO 389-4 : 1999	Identical
ISO 389-4:1994	Identical
UNI EN ISO 389-4 : 1999	Identical
SN EN ISO 389-4 : 1999	Identical
UNE-EN ISO 389-4:1999	Identical
EN ISO 389-4 : 1998	Identical
DIN EN ISO 389-4 E : 1999	Identical
DIN EN ISO 389-4:1999-07	Identical

IEC 60645-1:2017	Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry
ISO 389:1991	Acoustics Standard reference zero for the calibration of pure-tone air conduction audiometers
IEC 60126:1973	IEC reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts
IEC 60711:1981	Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts
EN ISO 389-2 : 1996	Acoustics - Reference zero for the calibration of audiometric equipment - Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones (ISO 389-2:1994)
IEC 60318:1970	An IEC artificial ear, of the wide band type, for the calibration of earphones used in audiometry
ISO 389-2:1994	Acoustics Reference zero for the calibration of audiometric equipment Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
ISO 389-3:2016	Acoustics Reference zero for the calibration of audiometric equipment Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators
EN ISO 389 : 1995	ACOUSTICS - STANDARD REFERENCE ZERO FOR THE CALIBRATION OF PURE-TONE AIR CONDUCTION

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I.S. EN ISO 389-4:1999

ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 4: REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE

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