10/30213857 DC : 0

Superseded

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BS ISO 8253-3 - ACOUSTICS - AUDIOMETRIC TEST METHODS - PART 3: SPEECH AUDIOMETRY

Available format(s)

Hardcopy , PDF

Superseded date

31-03-2012

Language(s)

English

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Requirements for speech recognition test material
5 Evaluation of speech recognition test
6 Reporting of speech signal level
7 Contralateral masking noise level
8 Ambient sound pressure levels in test room for speech
   audiometry
9 Sound field speech audiometry
10 Preparation and instruction of test subject
11 Subject's response mode
12 Determination of speech detection threshold level
13 Determination of speech recognition threshold level
14 Determination of speech recognition scores
15 Contralateral masking
16 Speech recognition with competing sound
17 Format of speech audiogram
18 Measurement uncertainty
19 Maintenance and calibration of equipment
Annex A (informative) - Example of speech materials
Annex B (informative) - Examples of competing sound
        conditions
Annex C (informative) - Typical results
Annex D (informative) - Optimisation of perceptual
        equivalence of test lists
Annex E (informative) - Measurement uncertainty
Annex F (informative) - Reference equivalent threshold
        sound pressure levels for speech recognition for
        specific earphones
Annex G (informative) - Derivation and application of
        the speech sound pressure levels
Annex H (informative) - Correction figures for free-field
        equivalent output for certain types of earphones
Bibliography

BS ISO 8253-3

Committee	EH/1
DocumentType	Draft
Pages	47
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN ISO 8253-3:2012

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
IEC 60050-801:1994	International Electrotechnical Vocabulary (IEV) - Part 801: Acoustics and electroacoustics
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 61260:1995	Electroacoustics - Octave-band and fractional-octave-band filters
IEC 60645-2:1993	Audiometers - Part 2: Equipment for speech audiometry
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 8253-2:2009	Acoustics Audiometric test methods Part 2: Sound field audiometry with pure-tone and narrow-band test signals
ISO/IEC Guide 98-3:2008	Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)