BS EN 60645-2 ED 2 - AUDIOMETRIC EQUIPMENT - PART 2: EQUIPMENT FOR SPEECH AUDIOMETRY

Available format(s)

Hardcopy , PDF

Language(s)

English

Publisher

British Standards Institution

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
4 General requirements
5 Requirements for specific types of audiometers
6 Reference conditions for specification, testing
and calibration of speech audiometers
7 Signal level indicator
8 Output level control for speech signals
9 Output sound pressure level
10 Frequency response
11 Harmonic distortion
12 Signal-to-noise ratio
13 Masking sound
14 Marking and instruction manual

BS EN 60645-2 ED 2

Committee	EPL/29
DocumentType	Draft
Pages	16
PublisherName	British Standards Institution
Status	Current

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ISO 389-4:1994	Acoustics Reference zero for the calibration of audiometric equipment Part 4: Reference levels for narrow-band masking noise
IEC 60318-3:2014	Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
ISO 266:1997	Acoustics — Preferred frequencies
IEC 60645-1:2017	Electroacoustics - Audiometric equipment - Part 1: Equipment for pure-tone and speech audiometry
ISO 8253-3:2012	Acoustics Audiometric test methods Part 3: Speech audiometry
IEC 60268-7:2010	Sound system equipment - Part 7: Headphones and earphones
IEC 60318-5:2006	Electroacoustics - Simulators of human head and ear - Part 5: 2 cm<sup>3</sup> coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts
ISO 389-1:1998	Acoustics Reference zero for the calibration of audiometric equipment Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
ISO 8253-1:2010	Acoustics Audiometric test methods Part 1: Pure-tone air and bone conduction audiometry
IEC 60268-17:1990	Sound system equipment. Part 17: Standard volume indicators
IEC 60318-1:2009	Electroacoustics - Simulators of human head and ear - Part 1: Ear simulator for the measurement of supra-aural and circumaural earphones
ISO/IEC Guide 98-3:2008	Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)