IEC 63034:2020

Microspeakers

IEC 63034:2020

Name:IEC 63034:2020   Standard name:Microspeakers
Standard number:IEC 63034:2020   language:English and French language
Release Date:23-Jun-2020   technical committee:TC 100 - Audio, video and multimedia systems and equipment
Drafting committee:PT 63034 - TC 100/TA 20/PT 63034   ICS number:01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION

IEC 63034
Edition 1.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Microspeakers
Micro-haut-parleurs




your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and once 67 000 electrotechnical terminology entries in English and
a month by email. French extracted from the Terms and Definitions clause of IEC
publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or need CISPR.

further assistance, please contact the Customer Service

.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC - Le premier dictionnaire d'électrotechnologie en ligne au monde,
webstore.iec.ch/advsearchform avec plus de 22 000 articles terminologiques en anglais et en
La recherche avancée permet de trouver des publications IEC français, ainsi que les termes équivalents dans 16 langues
en utilisant différents critères (numéro de référence, texte, additionnelles. Egalement appelé Vocabulaire
comité d’études,…). Elle donne aussi des informations sur les Electrotechnique International (IEV) en ligne.

projets et les publications remplacées ou retirées.
Glossaire IEC - std.iec.ch/glossary
IEC Just Published - webstore.iec.ch/justpublished 67 000 entrées terminologiques électrotechniques, en anglais
Restez informé sur les nouvelles publications IEC. Just et en français, extraites des articles Termes et Définitions des
Published détaille les nouvelles publications parues. publications IEC parues depuis 2002. Plus certaines entrées
Disponible en ligne et une fois par mois par email. antérieures extraites des publications des CE 37, 77, 86 et
CISPR de l'IEC.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[email protected] .
Electropedia - www.electropedia.org

IEC 63034
Edition 1.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Microspeakers
Micro-haut-parleurs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.50 ISBN 978-2-8322-8312-7

– 2 – IEC 63034:2020  IEC 2020
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 8
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 8
4 Conditions of measurement . 9
4.1 Rated measuring conditions . 9
4.2 Climatic conditions . 9
4.3 Normal measuring conditions . 9
5 Acoustical environment . 10
5.1 General . 10
5.2 Free-field conditions . 10
5.3 Half-space free-field conditions . 10
5.4 Simulated free-field conditions . 10
5.5 Half-space simulated free-field conditions . 10
6 Mounting of the microspeaker . 10
6.1 Mounting and acoustic loading of microspeaker units . 10
6.2 Mounting and acoustic loading of microspeaker systems . 11
6.3 Standard micro-baffle . 11
6.4 Measuring plane wave tube. 12
7 Positioning of microspeaker and measuring microphone . 13
7.1 Positioning of the microspeaker . 13
7.1.1 Rated geometrical condition . 13
7.1.2 Reference plane . 13
7.1.3 Reference point . 13
7.1.4 Normal vector . 13
7.1.5 Polar vector . 14
7.2 Measuring distance under free-field and half-space free-field conditions . 14
7.2.1 Far-field condition . 14
7.2.2 Single microspeaker unit (transducer) . 14
7.2.3 Multi-unit microspeaker systems . 14
7.3 Positioning of microspeaker and microphone in simulated free-field and half-
space free-field conditions . 14
8 Measuring equipment . 15
9 Accuracy of the measurement. 15
9.1 General . 15
9.2 Unwanted acoustic and electrical noise . 15
9.3 Accuracy of the mounting . 15
9.4 Accuracy of the measuring equipment . 15
9.5 Accuracy of acoustic environment . 15
10 Marking of terminals and controls . 15
10.1 General . 15
10.2 Positive terminal . 16
10.2.1 Characteristic to be specified . 16
10.2.2 Marking . 16

10.2.3 Method of testing . 16
11 Test signals . 16
11.1 General . 16
11.2 Steady-state sinusoidal signal . 16
11.3 Sinusoidal chirp signal . 16
11.4 Discrete multi-tone sinusoidal signal . 17
11.5 Broadband noise signal . 18
11.6 Narrow-band noise signal . 18
12 Preconditioning . 18
12.1 Acclimatization . 18
12.2 Pre-loading . 18
13 Electrical input impedance . 19
13.1 Electrical input impedance curve . 19
13.1.1 Characteristics to be specified . 19
13.1.2 Method of measurement . 19
13.2 Rated impedance . 19
14 Small signal parameters of the microspeaker . 19
14.1 General . 19
14.2 Characteristics to be specified . 20
14.2.1 Resonance frequency f . 20
s
14.2.2 DC resistance of driver voice coil R . 20
dc
14.2.3 Voice coil inductance L . 20
e
14.2.4 Total Q-factor Q . 20
ts
14.2.5 Electrical Q-factor Q . 20
es
14.2.6 Mechanical Q-factor Q . 20
ms
14.2.7 Mechanical compliance C . 20
ms
14.2.8 Moving mass M . 21
ms
14.2.9 Mechanical resistance R . 21
ms
14.2.10 Force factor Bl .
...

  • Relates Information
  • IEC 60300-3-7:1999

    IEC 60300-3-7:1999 - Dependability management - Part 3-7: Application guide - Reliability stress screening of electronic hardware Released:5/31/1999 Isbn:2831847974
    09-20
  • HD 571 S1:1990

    HD 571 S1:1998
    09-20
  • ISO 8130-4:1992

    ISO 8130-4:1992 - Coating powders
    09-20
  • HD 478.2.7 S1:1990

    HD 478.2.7 S1:2003
    09-19
  • ISO 8473:1988/Cor 1:1992

    ISO 8473:1988/Cor 1:1992 - Information processing systems — Data communications — Protocol for providing the connectionless-mode network service — Technical Corrigendum 1 Released:12/10/1992
    09-19
  • EN ISO 9013:2017/prA1

    EN ISO 9013:2017/oprA1:2024
    09-19
  • IEC 60118-6:1999

    IEC 60118-6:1999 - Hearing aids - Part 6: Characteristics of electrical input circuits for hearing aids Released:6/9/1999 Isbn:2831848075
    09-19
  • HD 280.3 S1:1990

    HD 280.3 S1:1999
    09-19
  • ISO 9832:1992

    ISO 9832:1992 - Animal and vegetable fats and oils -- Determination of residual technical hexane content
    09-19
  • EN 60188:1988/A1:1990

    EN 60188:1999/A1:1999
    09-18