EN 61669:2016

SLOVENSKI STANDARD
01-april-2016
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SIST EN 61669:2002
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Electroacoustics - Measurement of real-ear acoustical performance characteristics of
hearing aids
Ta slovenski standard je istoveten z: EN 61669:2016
ICS:
11.180.15 3ULSRPRþNL]DJOXKHRVHEHLQ Aids for deaf and hearing
RVHEH]RNYDURVOXKD impaired people
17.140.50 Elektroakustika Electroacoustics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61669
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2016
ICS 17.140.50 Supersedes EN 61669:2001
English Version
Electroacoustics - Measurement of real-ear acoustical
performance characteristics of hearing aids
(IEC 61669:2015)
Électroacoustique - Mesure des caractéristiques de Elektroakustik - Messung der Kenndaten von Hörgeräten
performances acoustiques des appareils de correction am menschlichen Ohr
auditive sur une oreille réelle (IEC 61669:2015)
(IEC 61669:2015)
This European Standard was approved by CENELEC on 2015-12-09. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61669:2016 E
EN 61699:2016
European foreword
The text of document 29/886/FDIS, future edition 2 of IEC 61699, prepared by
IEC/TC 29 "Electroacoustics" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 61699:2016.
The following dates are fixed:
(dop) 2016-09-09
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2018-12-09
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 61699:2001.

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61699:2015 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60118-0 NOTE Harmonized as EN 60118-0.
IEC 60118-7 NOTE Harmonized as EN 60118-7.
IEC 60118-8 NOTE Harmonized as EN 60118-8.
IEC 60118-15 NOTE Harmonized as EN 60118-15.
IEC 60318-4 NOTE Harmonized as EN 60318-4.

EN 61699:2016
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant

EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60318-5 -  Electroacoustics - Simulators of human EN 60318-5 -
head and ear -- Part 5: 2 cm³ coupler for
the measurement of hearing aids and
earphones coupled to the ear by means of
ear inserts
IEC 60601-1 -  Medical electrical equipment -- Part 1: EN 60601-1 -
General requirements for basic safety and
essential performance
IEC 60601-1-2 -  Medical electrical equipment -- Part 1-2: EN 60601-1-2 -
General requirements for basic safety and
essential performance - Collateral
standard: Electromagnetic disturbances -
Requirements and tests
IEC 60942 -  Electroacoustics - Sound calibrators EN 60942 -
IEC 61260-1 -  Electroacoustics - Octave-band and EN 61260-1 -
fractional-octave-band filters -- Part 1:
Specifications
ISO 266 -  Acoustics - Preferred frequencies EN ISO 266 -
ISO 8253-2 -  Acoustics - Audiometric test methods - Part EN ISO 8253-2 -
2: Sound field audiometry with pure-tone
and narrow-band test signals
ISO/TR 25417 -  Acoustics_- Definitions of basic quantities - -
and terms
IEC 61669 ®
Edition 2.0 2015-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electroacoustics – Measurement of real-ear acoustical performance

characteristics of hearing aids

Électroacoustique – Mesure des caractéristiques de performances acoustiques

des appareils de correction auditive sur une oreille réelle

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.50 ISBN 978-2-8322-2994-1

– 2 – IEC 61669:2015 © IEC 2015
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Test setup diagrams . 13
5 Limitations . 15
6 Test equipment . 16
6.1 Safety requirements . 16
6.2 Ambient conditions. 16
6.3 Test signal . 16
6.4 Sound field source . 17
6.5 Coupled sound source . 17
6.6 Test signal range . 17
6.7 Test signal level indication . 17
6.8 Equalization . 17
6.9 Frequency . 17
6.10 Harmonic distortion . 17
6.11 Probe microphone measurement . 17
6.12 Noise floor of probe microphone measurement . 17
6.13 Attenuation of probe microphone to external signals . 18
6.14 Analysis characteristics. 18
6.15 Output indication . 18
6.16 Graphical printout . 18
7 Test conditions . 19
7.1 Ambient conditions in the test space . 19
7.2 Background noise . 19
7.3 Acoustical properties . 19
7.4 Sound field characteristics . 19
7.5 Calibration . 19
7.6 Equalization . 19
7.6.1 General . 19
7.6.2 Substitution method . 19
7.6.3 Modified pressure method – Stored equalization . 20
7.6.4 Modified pressure method – Concurrent equalization . 20
7.7 Test signal level . 20
7.8 Location of the subject . 20
7.9 Location of the tester . 20
7.10 Location of the field reference point . 20
7.11 Location of the measurement point . 21
7.12 Instructions to the subject . 21
7.13 Location and coupling of the hearing aid . 21
7.14 Operating conditions for the hearing aid . 21
8 Measurements . 21
8.1 General . 21

IEC 61669:2015 © IEC 2015 – 3 –
8.2 Real-ear unaided response (REUR) curve. 21
8.3 Real-ear unaided gain (REUG) curve . 22
8.4 Real-ear occluded response (REOR) curve . 22
8.5 Real-ear occluded gain (REOG) curve . 22
8.6 Real-ear aided response (REAR) curve. 22
8.7 Real-ear aided gain (REAG) curve . 23
8.8 Real-ear insertion gain (REIG) curve . 23
8.9 Real-ear to coupler difference (RECD) curve . 23
8.10 Real-ear to dial difference (REDD) curve . 23
9 Measurement uncertainty for the performance requirements of Clause 6 . 24
Annex A (informative) Positioning the probe microphone sound inlet at the
measurement point . 25
A.1 General . 25
A.2 Visual positioning . 25
A.3 Acoustically-assisted positioning . 25
A.4 Acoustic positioning – Method 1 . 26
A.5 Acoustic positioning – Method 2 . 26
A.6 Geometrical positioning . 26
Anne
...