EN 60318-4:2010

Electroacoustics - Simulators of human head and ear - Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts

IEC 60318-4:2010 describes an occluded-ear simulator intended for the measurement of insert earphones in the frequency range from 100 Hz to 10 000 Hz. It is suitable for air conduction hearing aids and earphones, coupled to the ear by means of ear inserts e.g. ear moulds or similar devices. The occluded-ear simulator is also suitable as the basis for an extension intended to simulate the complete ear canal and the outer ear (for instance in head simulators). The occluded-ear simulator simulates the acoustic transfer impedance for the occluded normal adult human ear. However, it does not simulate the leakage between an earmould and a human ear canal; therefore, the results obtained with the occluded-ear simulator may deviate from the performance of an insert earphone on a real ear, especially at low frequencies. Moreover, large performance variations among individual ears will occur which should be considered when using the ear simulator. Above 10 kHz the device does not simulate a human ear, but can be used as an acoustic coupler at additional frequencies up to 16 kHz. Below 100 Hz, the device has not been verified to simulate a human ear, but can be used as an acoustic coupler at additional frequencies down to 20 Hz. IEC 60318-4:2010 cancels and replaces IEC 60711, published in 1981 and constitutes a technical revision. The main changes with respect to the previous edition are listed below: - extension of the usable frequency range to 100 Hz - 16 000 Hz; - addition of values of maximum permitted expanded uncertainties to all tolerances.

Akustik - Simulatoren des menschlichen Kopfes und Ohres - Teil 4: Simulator für den abgeschlossenen Gehörgang zur Messung an mittels Ohreinsätzen an das Ohr angekoppelten Ohrhörern

Electroacoustique - Simulateurs de tête et d'oreille humaines - Partie 4: Simulateur d'oreille occluse pour la mesure des écouteurs couplés à l'oreille par des embouts

La CEI 60318-4:2010 décrit un simulateur d'oreille occluse, destiné à la mesure des écouteurs internes, dans la plage de fréquences comprise entre 100 Hz et 10 000 Hz. Ce simulateur est adapté aux appareils de correction auditive et écouteurs en conduction aérienne, couplés à l'oreille au moyen d'embouts, par exemple embouts moulés ou dispositifs similaires. Le simulateur d'oreille occluse peut aussi être utilisé comme appareil destiné à simuler le canal auditif complet et l'oreille externe (par exemple, dans les simulateurs de tête). Le simulateur d'oreille occluse simule l'impédance acoustique de transfert pour l'oreille occluse humaine normale d'adulte. Il ne simule cependant pas la fuite entre l'embout moulé et le canal auditif humain; par conséquent, les résultats obtenus avec le simulateur d'oreille occluse peuvent s'écarter des résultats fournis par un écouteur interne couplé à une oreille réelle, particulièrement aux fréquences basses. De plus, de grandes variations des résultats existent pour différentes oreilles, ce qu'il convient de prendre en compte lors de l'utilisation du simulateur d'oreille. Au-delà d'une fréquence de 10 kHz, le dispositif ne simule pas l'oreille humaine, mais peut en revanche être utilisé comme coupleur acoustique à des fréquences supplémentaires jusqu'à 16 kHz. En dessous d'une fréquence de 100 Hz, il n'a pas été vérifié que le dispositif simule l'oreille humaine, ce dernier pouvant en revanche être utilisé comme coupleur acoustique à des fréquences supplémentaires jusqu'à 20 Hz. La CEI 60318-4:2010 annule et remplace la CEI 60711, parue en 1981, dont elle constitue une révision technique. La liste des principales modifications par rapport à l'édition précédente est la suivante: - élargissement du domaine de fréquence utile de 100 Hz à 16 000 Hz; - ajout des valeurs d'incertitude élargie maximale admise à toutes les tolérances.

Elektroakustika - Simulatorji človeške glave in ušes - 4. del: Simulator zamašenega ušesa za merjenje ušesnih slušalk, spojenih z ušesom prek ušesnih vstavkov (IEC 60318-4:2010)

Ta del IEC 60318 opisuje simulator zamašenega ušesa, namenjen za merjenje vstavljivih slušalk v frekvenčnem razponu med 100 Hz in 10 000 Hz. Primeren je za slušne pripomočke in slušalke, ki prevajajo zrak, spojene z ušesom prek ušesnih vstavkov, npr. ušesnih odlitkov ali podobnih pripomočkov. Simulator zamašenega ušesa je primeren tudi kot osnova za razširitev, ki je namenjena za simulacijo celotnega ušesnega kanala in zunanjega ušesa (na primer pri simulatorjih glave). Simulator zamašenega ušesa posnema impedanco zvočnega prenosa za zamašeno človeško uho normalnega odraslega. Vendar pa ne posnema uhajanja med ušesnim odlitkom in kanalom človeškega ušesa, zato se rezultati, dobljeni s simulatorjem zamašenega ušesa, lahko razlikujejo od delovanja vstavljive slušalke v pravem ušesu, predvsem pri nizkih frekvencah.  Poleg tega med posameznimi ušesi prihaja do velikih odstopanj v delovanju, ki jih je treba upoštevati pri uporabi ušesnih simulatorjev. Pripomoček nad 10 kHz ne posnema človeškega ušesa, vendar se lahko uporabi kot akustični spojnik pri dodatnih frekvencah do 16 kHz. Ni preverjeno, ali pripomoček posnema človeško uho pri frekvencah pod 100 Hz, vendar se lahko uporabi kot akustični spojnik pri dodatnih frekvencah do 20 Hz.

General Information

• Status: Published
• Publication Date: 06-May-2010
• Withdrawal Date: 30-Apr-2013
• ICS: 17.140.50 - Electroacoustics
• Technical Committee: CLC/SR 29 - Electroacoustics
• Drafting Committee: IEC/TC 29 - IEC_TC_29
• Parallel Committee: IEC/TC 29 - IEC_TC_29
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 07-May-2010
• Completion Date: 07-May-2010
• Ref Project: SIST EN 60318-4:2010 - Electroacoustics - Simulators of human head and ear - Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts (IEC 60318-4:2010)

Relations

• Replaces: HD 443 S1:1983 - Occluded-ear simulator for the measurement of earphones coupled to the ear by ear inserts
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2010
1DGRPHãþD
SIST HD 443 S1:2004
(OHNWURDNXVWLND6LPXODWRUMLþORYHãNHJODYHLQXãHVGHO6LPXODWRU]DPDãHQHJD
XãHVD]DPHUMHQMHXãHVQLKVOXãDONVSRMHQLK]XãHVRPSUHNXãHVQLKYVWDYNRY,(&

Electroacoustics - Simulators of human head and ear - Part 4: Occluded-ear simulator for
the measurement of earphones coupled to the ear by means of ear inserts (IEC 60318-
4:2010)
Akustik - Simulatoren des menschlichen Kopfes und Ohres - Teil 4: Simulator für den
abgeschlossenen Gehörgang zur Messung an mittels Ohreinsätzen an das Ohr
angekoppelten Ohrhörern (IEC 60318-4:2010)
Electroacoustique - Simulateurs de tête et d'oreille humaines - Partie 4: Simulateur
d'oreille occluse pour la mesure des écouteurs couplés à l'oreille par des embouts (CEI
60318-4:2010)
Ta slovenski standard je istoveten z: EN 60318-4:2010
ICS:
13.140 Vpliv hrupa na ljudi Noise with respect to human
beings
17.140.50 Elektroakustika Electroacoustics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60318-4
NORME EUROPÉENNE
May 2010
EUROPÄISCHE NORM
ICS 17.140.50 Supersedes HD 443 S1:1983

English version
Electroacoustics -
Simulators of human head and ear -
Part 4: Occluded-ear simulator for the measurement of earphones coupled
to the ear by means of ear inserts
(IEC 60318-4:2010)
Electroacoustique -  Akustik -
Simulateurs de tête et d'oreille humaines - Simulatoren des menschlichen Kopfes
Partie 4: Simulateur d'oreille occluse und Ohres -
pour la mesure des écouteurs couplés Teil 4: Simulator für den abgeschlossenen
à l'oreille par des embouts Gehörgang zur Messung an mittels
(CEI 60318-4:2010) Ohreinsätzen an das Ohr angekoppelten
Ohrhörern
(IEC 60318-4:2010)
This European Standard was approved by CENELEC on 2010-05-01. 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 Central Secretariat 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 Central Secretariat 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, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60318-4:2010 E
Foreword
The text of document 29/662/CDV, future edition 1 of IEC 60318-4, prepared by IEC TC 29,
Electroacoustics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60318-4 on 2010-05-01.
This standard supersedes HD 443 S1:1983.
The main changes with respect to the previous edition are listed below:
− extension of the usable frequency range to 100 Hz – 16 000 Hz;
− addition of values of maximum permitted expanded uncertainties to all tolerances.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-02-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-05-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60318-4:2010 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:
[1]  ISO 389-2 NOTE  Harmonized as EN ISO 389-2.
[2]  ISO 389-5 NOTE  Harmonized as EN ISO 389-5.
[3]  ISO 389-6 NOTE  Harmonized as EN ISO 389-6.
__________
- 3 - EN 60318-4:2010
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application 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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 61094-4 - Measurement microphones - EN 61094-4 -
Part 4: Specifications for working standard
microphones
ISO/IEC Guide 98-3 - Uncertainty of measurement - - -
Part 3: Guide to the expression of uncertainty
in measurement (GUM:1995)
IEC 60318-4 ®
Edition 1.0 2010-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electroacoustics – Simulators of human head and ear –
Part 4: Occluded-ear simulator for the measurement of earphones coupled to
the ear by means of ear inserts

Électroacoustique – Simulateurs de tête et d’oreille humaines –
Partie 4: Simulateur d'oreille occluse pour la mesure des écouteurs couplés à
l'oreille par des embouts
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
R
CODE PRIX
ICS 17.140.50 ISBN 2-8318-1076-6
– 2 – 60318-4 © IEC:2010
CONTENTS
FOREWORD.3
1 Scope.5
2 Normative references .5
3 Terms and definitions .5
4 Construction .7
4.1 General .7
4.2 Principal cavity dimensions .7
4.3 Calibrated pressure-type microphone .7
4.4 Pressure equalization.8
4.5 Acoustic transfer impedance level .8
4.6 Example of design.8
5 Calibration.9
5.1 Atmospheric reference conditions.9
5.2 Calibration method .9
6 Coupling of earphones and hearing aids to the occluded-ear simulator.9
6.1 Audiometers with insert earphones.9
6.2 In-the-ear hearing aids (custom made) .9
6.3 Hearing aids with insert earphone .10
6.4 Behind-the-ear and spectacle hearing aids.11
6.5 Modular in-the-ear hearing aids.12
7 Maximum permitted expanded uncertainty of measurements .14
Annex A (informative) Example of one specific design of occluded-ear simulator .16
Annex B (informative) Principle of calibration for the occluded-ear simulator.17
Bibliography.19

Figure 1 – Connection of an in-the-ear hearing aid to the occluded-ear simulator .10
Figure 2 – Connection of an insert earphone to the occluded-ear simulator .11
Figure 3 – Connection of a behind-the-ear hearing aid to the occluded-ear simulator.13
Figure 4 – Connection of an in-the-ear hearing aid (modular type) to the occluded-ear
simulator.14
Figure A.1 – Example of one specific design of occluded-ear simulator.16

Table 1 – Level of the acoustic transfer impedance modulus and associated tolerances .8
Table 2 – Values of maximum permitted expanded uncertainty U for basic type
max
approval measurements.15
Table B.1 – Sound pressure level relative to that at the reference frequency 500 Hz
(L (f)– L (500)) for the nominal effective volume (1 260 mm ) of the occluded-ear
p p
simulator, and associated tolerances .18

60318-4 © IEC:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROACOUSTICS –
SIMULATORS OF HUMAN HEAD AND EAR –

Part 4: Occluded-ear simulator for the measurement
of earphones coupled to the ear by means of ear inserts

FOREWORD
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60318-4 has been prepared by IEC technical committee 29:
Electroacoustics.
This first edition of IEC 60318-4 cancels and replaces IEC 60711, published in 1981 and
constitutes a technical revision.
The main changes with respect to the prev
...