Electroacoustics - Hearing aids - Part 16: Definition and verification of hearing aid features

This part of IEC 60118 gives definitions for common hearing aid features such as noise reduction or feedback reduction, etc. Only acoustical inputs are considered. Binaural features are currently not covered in this document. In addition, measurement procedures are described to verify hearing aid features. The objective is not to evaluate the performance of features but to verify their existence and functionality. Furthermore, definitions and procedures are kept as general as possible so that this document can be applied to various types of hearing aids, e.g. air conduction hearing aids or bone conduction hearing aids. To this end, the general definition for hearing aid of IEC 60118-0:2015 is adopted, and this document does not refer to any specific ear simulator or acoustic coupler but uses a general definition of a coupler. However, if a general view is not applicable or leads to unclear or complex wording, the situation for an air conduction hearing aid is considered, only. Nevertheless, in Clause 4, an explanation is given on how this document can be applied to hearing aids which do not use air conduction.

Elektroakustik - Hörgeräte - Teil16: Begriffe und Verifikation von Hörgeräteeigenschaften

Électroacoustique - Appareils de correction auditive - Partie 16: Définition et vérification des caractéristiques des appareils de correction auditive

L'IEC 60118-16:2022 définit les caractéristiques communes des appareils de correction auditive telles que la réduction du bruit ou la réduction des retours, etc. Seules les entrées acoustiques sont prises en considération. Les caractéristiques binaurales ne sont actuellement pas couvertes par le présent document. En outre, des procédures de mesure destinées à vérifier les caractéristiques des appareils de correction auditive sont décrites. L’objectif n’est pas d’évaluer les performances des caractéristiques, mais de vérifier leur existence et leur fonctionnalité. Par ailleurs, les définitions et les procédures sont maintenues aussi générales que possible de telle sorte que le présent document peut être appliqué à différents types d'appareils de correction auditive, par exemple, appareils de correction auditive à conduction aérienne ou à conduction osseuse. À cette fin, la définition générale du terme "appareil de correction auditive" donnée dans l’IEC 60118-0 est adoptée, et le présent document ne fait référence à aucun simulateur d'oreille ou aucun coupleur acoustique spécifiques, mais utilise une définition générale du terme "coupleur". Toutefois, lorsqu’une vue générale n’est pas applicable ou entraîne une formulation peu claire ou complexe, seule la situation d’un appareil de correction auditive à conduction aérienne est prise en considération. Néanmoins, une explication est donnée sur la manière dont le présent document peut être appliqué à des appareils de correction auditive qui n’utilisent pas la conduction aérienne.

Elektroakustika - Slušni pripomočki - 16. del: Opredelitev in preverjanje lastnosti slušnega aparata (IEC 60118-16:2022)

Ta del standarda IEC 60118 podaja opredelitve za običajne funkcije slušnega aparata, kot je zmanjšanje hrupa ali zmanjševanje odmeva itd. Obravnavani so samo akustični vhodi. Binavralne funkcije trenutno niso zajete v tem dokumentu. Opisani pa so postopki merjenja za preverjanje funkcij slušnega aparata. Cilj ni vrednotenje učinkovitosti funkcij, temveč preverjanje njihovega obstoja in delovanja.
Opredelitve in postopki so toliko splošni, da se dokument lahko uporablja za različne vrste slušnih pripomočkov, npr. slušne aparate, ki delujejo na podlagi prevajanja zvoka po zraku, ali kostno prevodne slušne aparate. V ta namen je uveljavljena splošna opredelitev slušnega aparata iz standarda IEC 60118-0:2015 in ta dokument se ne navezuje na noben določen ušesni simulator ali akustični spojnik, ampak uporablja splošno opredelitev spojnika. Če pa splošni opis ni uporaben ali je zaradi tega besedilo nejasno ali zapleteno, se obravnava samo situacija za slušni aparat, ki deluje na podlagi prevajanja zvoka po zraku. Kljub temu pa je v točki 4 podano pojasnilo, kako je mogoče ta dokument uporabiti za slušne aparate, ki ne delujejo na podlagi prevajanja zvoka po zraku.

General Information

Status
Published
Publication Date
21-Apr-2022
Technical Committee
Drafting Committee
Current Stage
6060 - Document made available - Publishing
Start Date
22-Apr-2022
Completion Date
22-Apr-2022

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SLOVENSKI STANDARD
01-junij-2022
Elektroakustika - Slušni pripomočki - 16. del: Opredelitev in preverjanje lastnosti
slušnega aparata (IEC 60118-16:2022)
Electroacoustics - Hearing aids - Part 16: Definition and verification of hearing aid
features (IEC 60118-16:2022)
Elektroakustik - Hörgeräte - Teil16: Begriffe und Verifikation von Hörgeräteeigenschaften
(IEC 60118-16:2022)
Électroacoustique - Appareils de correction auditive - Partie 16: Définition et vérification
des caractéristiques des appareils de correction auditive (IEC 60118-16:2022)
Ta slovenski standard je istoveten z: EN IEC 60118-16:2022
ICS:
11.180.15 Pripomočki za gluhe osebe in Aids for deaf and hearing
osebe z okvaro sluha impaired people
17.140.50 Elektroakustika Electroacoustics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60118-16

NORME EUROPÉENNE
EUROPÄISCHE NORM April 2022
ICS 17.140.50
English Version
Electroacoustics - Hearing aids - Part 16: Definition and
verification of hearing aid features
(IEC 60118-16:2022)
Électroacoustique - Appareils de correction auditive - Partie Elektroakustik - Hörgeräte - Teil16: Begriffe und Verifikation
16: Définition et vérification des caractéristiques des von Hörgeräteeigenschaften
appareils de correction auditive (IEC 60118-16:2022)
(IEC 60118-16:2022)
This European Standard was approved by CENELEC on 2022-04-20. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60118-16:2022 E

European foreword
The text of document 29/1110/FDIS, future edition 1 of IEC 60118-16, prepared by IEC/TC 29
"Electroacoustics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-01-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-04-20
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60118-16:2022 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 60318-5 NOTE Harmonized as EN 60318-5
IEC 60318-4 NOTE Harmonized as EN 60318-4
IEC 60318-6 NOTE Harmonized as EN 60318-6
IEC 60601-2-66:2019 NOTE Harmonized as EN IEC 60601-2-66:2020 (not modified)
IEC 60118-9 NOTE Harmonized as EN IEC 60118-9
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where 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
1 2
IEC 60118-0 — Electroacoustics - Hearing aids - Part 0: EN IEC 60118-0 —
Measurement of the performance
characteristics of hearing aids
Electroacoustics - Hearing aids - Part 15:
IEC 60118-15 - EN 60118-15 -
Methods for characterising signal
processing in hearing aids with a speech-
like signal
IEC 61260-1 - Electroacoustics - Octave-band and EN 61260-1 -
fractional-octave-band filters - Part 1:
Specifications
ISO 21748 - Guidance for the use of repeatability, - -
reproducibility and trueness estimates in
measurement uncertainty estimation

In preparation. Stage at time of publication: IEC FDIS 60118-0:2022.
In preparation. Stage at time of publication: prEN IEC 60118-0:2021.
IEC 60118-16 ®
Edition 1.0 2022-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electroacoustics – Hearing aids –

Part 16: Definition and verification of hearing aid features

Électroacoustique – Appareils de correction auditive –

Partie 16: Définition et vérification des caractéristiques des appareils de

correction auditive
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.50 ISBN 978-2-8322-1088-7

– 2 – IEC 60118-16:2022 © IEC 2022
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Application to non-air-conduction hearing aids . 10
5 Test equipment . 10
5.1 Acoustical requirements . 10
5.2 Examples of test signals for common listening situations . 11
6 Verification of noise reduction. 11
6.1 Noise reduction for speech enhancement . 11
6.2 Gain reduction for noise . 12
7 Strategies of hearing aid programs and their verification. 13
7.1 General . 13
7.2 User-selected hearing aid programs . 13
7.2.1 Description . 13
7.2.2 Verification . 13
7.3 Automatically-selected hearing aid programs depending on listening
situation . 14
7.3.1 Description . 14
7.3.2 Verification by setting a marker . 15
7.3.3 Verification using a linear gain configuration . 15
8 Verification of feedback reduction . 16
8.1 General . 16
8.2 Coupling of the hearing aid . 16
8.3 Measurement procedure . 16
8.4 Post processing . 17
9 Verification of the number of hearing aid channels . 18
9.1 Visualization of the effect of multichannel signal processing . 18
9.2 Evaluation of the number of independent channels . 19
10 Verification of an output limiter . 20
Annex A (informative) Coupling of the hearing aid to the measurement coupler in
order to provoke feedback . 21
A.1 Simplified coupling of air-conduction hearing aids to the 2 cm acoustic
coupler . 21
A.2 Head and torso simulator with vented ear canal extension . 22
Annex B (informative) Particular guidance . 24
B.1 Verification of user selected hearing aid programs . 24
B.2 Automatically-selected hearing aid programs depending on listening
situation . 25
B.2.1 Verification by setting a marker . 25
B.2.2 Verification by using a linear gain configuration . 27
Bibliography . 29

Figure 1 – Visualization of user selected HAPs . 13
Figure 2 – Visualization of automatically-selected HAPs depending on listening
situation . 14

IEC 60118-16:2022 © IEC 2022 – 3 –
Figure 3 – Example of the plot of the results of the feedback reduction measurement . 18
Figure A.1 – Simplified coupling of air-conduction hearing aids with one microphone to
the 2 cm acoustic coupler to provoke feedback . 21
Figure A.2 – Simplified coupling of air-conduction hearing aids with two microphones to
the 2 cm acoustic coupler to provoke feedback . 22
Figure A.3 – Head and torso simulator for the measurement of air-conduction hearing
aids according to IEC/TS 60318-7 together with an ear simulator according to
IEC 60318-4 and a vented ear canal extension . 22
Figure A.4 – Example for a vented ear canal extension with medium flow (left) and high
flow (right) . 23
Figure B.1 – Visualization of the verification of user-selected hearing aid programs . 24
Figure B.2 – Visualization of the measurement of the reference data for the verification
of automatically-selected hearing aid programs by setting a marker . 25
Figure B.3 – Visualization of the measurement for the verification of
automatically-selected hearing aid programs by setting a marker where a marker is set
to the hearing aid program 1 . 26
Figure B.4 – Visualization of the measurement for the verification of
automatically-selected hearing aid programs by using a linear gain configuration . 28

Table 1 – Examples of test signals for different listening situations . 11
Table 2 – Symbols used for the evaluation and results of the feedback reduction
measurement .
...

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