EN IEC 60118-9:2019
(Main)Electroacoustics - Hearing aids - Part 9: Methods of measurement of the performance characteristics of bone conduction hearing aids
Electroacoustics - Hearing aids - Part 9: Methods of measurement of the performance characteristics of bone conduction hearing aids
IEC 60118-9:2019 specifies methods for the measurement of bone conduction hearing aid characteristics. The methods described will produce a suitable basis for the exchange of information or for direct comparison of the electroacoustical characteristics of bone conduction hearing aids. These methods are chosen to be practical and reproducible and are based on selected fixed parameters. The results obtained by the methods specified in this document express the performance under the conditions of measurement; however, the performance of the hearing aid under practical conditions of use will depend upon a number of factors (e.g. effective load impedance, environmental conditions, acoustical environment, etc.). This document defines methods of measurement of characteristics of bone conduction hearing aids both for • transcutaneously coupled devices measured on a mechanical coupler, meeting the requirements of IEC 60318-6, and • bone coupled/bone anchored devices measured on a skull simulator. IEC 60118-9:2019 cancels and replaces the first edition published in 1985. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) includes bone coupled devices measured on a skull simulator; b) measurement frequency range increased to 8 000 Hz for bone coupled devices.
Elektroakustik - Hörgeräte - Teil 9: Verfahren zur Messung der Übertragungseigenschaften von Knochenleitungshörgeräten
Électroacoustique - Appareils de correction auditive - Partie 9: Méthodes de mesure des caractéristiques fonctionnelles des appareils de correction auditive à conduction osseuse
L'IEC 60118-9:2019 spécifie les méthodes permettant de mesurer les caractéristiques des appareils de correction auditive à conduction osseuse. Les résultats des méthodes décrites constitueront une base adaptée pour échanger des informations ou pour comparer directement les caractéristiques électroacoustiques des appareils de correction auditive à conduction osseuse. Ces méthodes sont choisies pour leur praticabilité et leur reproductibilité, et sont fondées sur des paramètres fixes sélectionnés. Les résultats obtenus par les méthodes spécifiées dans le présent document expriment le fonctionnement de l'appareil de correction auditive dans les conditions de mesure, mais le fonctionnement en conditions réelles d'utilisation dépend d'un ensemble de facteurs (impédance de charge effective, conditions d'environnement, environnement acoustique, etc.). Le présent document définit les méthodes permettant de mesurer les caractéristiques des appareils de correction auditive à conduction osseuse qui sont: • des appareils à couplage transcutané mesurés sur un coupleur mécanique satisfaisant aux exigences de l'IEC 60318-6; • des appareils à couplage/ancrage osseux mesurés sur un simulateur crânien. L'IEC 60118-9:2019annule et remplace la première édition parue en 1985. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) ajout des appareils à couplage osseux mesurés sur un simulateur crânien; b) augmentation de la plage de fréquences de mesure à 8 000 Hz pour les appareils à couplage osseux.
Elektroakustika - Slušni pripomočki - 9. del: Metode za merjenje tehničnih lastnosti kostno prevodnih slušnih pripomočkov (IEC 60118-9:2019)
V tem standardu so opredeljene metode za merjenje lastnosti kostno prevodnih slušnih pripomočkov. Opisane metode bodo zagotovile ustrezno osnovo za izmenjavo informacij ali za neposredno primerjavo elektroakustičnih lastnosti kostno prevodnih slušnih pripomočkov. Izbrane metode so praktične in ponovljive ter temeljijo na izbranih nespremenljivih parametrih. Rezultati, pridobljeni z metodami, ki so navedene v tem dokumentu, prikazujejo delovanje v merilnih pogojih, vendar je učinkovitost slušnih pripomočkov pod praktičnimi pogoji uporabe odvisna od različnih dejavnikov (npr. učinkovita impedanca obremenitve, okoljski pogoji, akustično okolje itd.). Ta dokument določa metode za merjenje lastnosti kostno prevodnih slušnih pripomočkov tako za transkutano povezane naprave, ki se merijo na mehanskem spojniku in izpolnjujejo zahteve standarda IEC 60318-6, kot tudi za s kostjo spojene/na kost pritrjene naprave, merjene na lobanjskem simulatorju.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2020
Elektroakustika - Slušni pripomočki - 9. del: Metode za merjenje tehničnih lastnosti
kostno prevodnih slušnih pripomočkov (IEC 60118-9:2019)
Electroacoustics - Hearing aids - Part 9: Methods of measurement of the performance
characteristics of bone conduction hearing aids (IEC 60118-9:2019)
Elektroakustik - Hörgeräte - Teil 9: Verfahren zur Messung der
Übertragungseigenschaften von Knochenleitungshörgeräten (IEC 60118-9:2019)
Électroacoustique - Appareils de correction auditive - Partie 9: Méthodes de mesure des
caractéristiques fonctionnelles des appareils de correction auditive à conduction osseuse
(IEC 60118-9:2019)
Ta slovenski standard je istoveten z: EN IEC 60118-9:2019
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 60118-9
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2019
ICS 17.140.50
English Version
Electroacoustics - Hearing aids - Part 9: Methods of
measurement of the performance characteristics of bone
conduction hearing aids
(IEC 60118-9:2019)
Électroacoustique - Appareils de correction auditive - Partie Elektroakustik - Hörgeräte - Teil 9: Verfahren zur Messung
9: Méthodes de mesure des caractéristiques fonctionnelles der Übertragungseigenschaften von
des appareils de correction auditive à conduction osseuse Knochenleitungshörgeräten
(IEC 60118-9:2019) (IEC 60118-9:2019)
This European Standard was approved by CENELEC on 2019-10-21. 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
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60118-9:2019 E
European foreword
The text of document 29/1025/FDIS, future edition 2 of IEC 60118-9, 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) 2020-07-21
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-10-21
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.
Endorsement notice
The text of the International Standard IEC 60118-9:2019 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 60068 (series) NOTE Harmonized as EN 60068 (series)
IEC 60263 NOTE Harmonized as EN IEC 60263
Under preparation. Stage at the time of publication: prEN IEC 60263.
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
IEC 60118-0 - Electroacoustics - Hearing aids - Part 0: EN 60118-0 -
Measurement of the performance characteristics
of hearing aids
IEC 60318-6 - Electroacoustics - Simulators of human head and EN 60318-6 -
ear - Part 6: Mechanical coupler for the
measurement on bone vibrators
IEC 60118-9 ®
Edition 2.0 2019-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electroacoustics – Hearing aids –
Part 9: Methods of measurement of the performance characteristics of bone
conduction hearing aids
Électroacoustique – Appareils de correction auditive –
Partie 9: Méthodes de mesure des caractéristiques fonctionnelles des appareils
de correction auditive à conduction osseuse
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.50 ISBN 978-2-8322-7332-6
– 2 – IEC 60118-9:2019 © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Measurement method . 11
4.1 General . 11
4.2 Mechanical coupler . 11
4.3 Skull simulator . 11
4.4 Measurement frequency range . 11
4.5 Reporting of data . 12
5 Measurement enclosure and measurement equipment. 12
5.1 General . 12
5.2 Unwanted stimuli in the test enclosure . 12
5.3 Sound source . 12
5.4 Measurement system for the measurement of the vibratory force level
produced by a bone conduction hearing aid . 12
5.5 Direct-current measuring system . 13
5.6 Magnetic field source for ETLS and MMSL measurements . 13
6 Measurement conditions . 14
6.1 General . 14
6.2 Applying the bone vibrator to the mechanical coupler or skull simulator . 14
6.2.1 Transcutaneously coupled devices . 14
6.2.2 Bone coupled devices . 14
6.3 Control of the sound field . 15
6.3.6 Battery or supply voltage . 17
6.3.7 Settings of controls . 18
6.4 Ambient conditions. 18
6.4.1 Measurement space . 18
6.4.2 Bone vibrator, mechanical coupler and skull simulator . 18
7 Measurement procedures . 19
7.1 Frequency response curves . 19
7.2 OVFL90 frequency response curve . 19
7.3 Full-on acousto-mechanical sensitivity level frequency response . 20
7.4 Basic vibratory force level frequency response . 21
7.4.1 Measurement procedure . 21
7.4.2 Frequency range . 21
7.5 Total harmonic distortion . 21
7.6 Equivalent input noise . 22
7.7 Battery current . 22
7.8 Measurements for hearing aids having an induction pick-up coil . 22
7.8.1 General . 22
7.8.2 Equivalent test loop sensitivity (ETLS) . 23
7.8.3 Maximum HFA magneto-mechanical sensitivity level (HFA- MMSL) of
induction pick-up coil . 23
8 Maximum permitted expanded uncertainty of measurements . 23
IEC 60118-9:2019 © IEC 2019 – 3 –
Bibliography . 26
Figure 1 – Example of a bone coupled device (hearing aid with integral bone vibrator)
mounted on a skull simulator . 15
Figure 2 – Example of a transcutaneously coupled device (spectacle hearing aid with
an integral bone vibrator mounted in the spectacle arm) under measurement . 16
Figure 3 – Example of a transcutaneously coupled device (hearing aid with external
bone vibrator) mounted on the mechanical coupler . 17
Figure 4 – Example of OVFL90 curve and basic force level frequency response curve . 20
Figure 5 – Relationship between tolerance limits, corresponding acceptance intervals
and the maximum permitted uncertainty of measurement, U . 24
MAX
Table 1 – Resistors and open circuit voltages for zinc-air battery simulators . 18
Table 2 – Distortion test frequencies and input sound pressure levels . 22
Table 3 – Example uncertainty budget . 25
– 4 – IEC 60118-9:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROACOUSTICS –
HEARING AIDS –
Part 9: Methods of measurement of the performance
characteristics of bone conduction hearing aids
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.