Sound system equipment - Part 24: Headphones and earphones - Active acoustic noise cancelling characteristics (IEC 60268-24:2023)

IEC 60268-24:2023 is applicable to active acoustic noise-cancelling headphones and earphones which have the function of reducing the noise heard by the user by the output sound from the transducer generated by the environment noise detection microphone and the noise reduction signal processing circuit.
This document specifies the terms and definitions of this type of headphones or earphones, the characteristics to be specified, and the measurement and evaluation methods.
The noise detection microphone or microphones are mounted in the body, on the surface, or on an accessory of the headphones or earphones. Signal processing circuits are analogue and digital electronic circuits.
This document does not deal with equipment intended for hearing protection.
The noise cancelling characteristic measurement methods can be applied to headphones and earphones having no active noise cancelling function.

Elektroakustische Geräte - Teil 24: Kopfhörer und Ohrhörer - Eigenschaften zur aktiven Geräuschunterdrückung (IEC 60268-24:2023)

Equipements pour systèmes électroacoustiques - Partie 24: Casques et écouteurs - Caractéristiques d'annulation active du bruit acoustique (IEC 60268-24:2023)

L'IEC 60268-24:2023 s'applique aux casques et écouteurs à annulation active du bruit acoustique qui ont pour fonction de réduire le bruit entendu par l'utilisateur; le son obtenu en sortie provient du transducteur et il est généré par le microphone de détection du bruit ambiant et le circuit de traitement du signal de réduction du bruit.
Le présent document spécifie les termes et définitions relatifs à ce type de casques ou d'écouteurs, les caractéristiques à spécifier ainsi que les méthodes de mesurage et d'évaluation.
Le microphone ou les microphones de détection du bruit sont montés à l'intérieur du corps, sur la surface ou sur un accessoire des casques ou des écouteurs. Les circuits de traitement du signal sont des circuits électroniques analogiques et numériques.
Le présent document ne traite pas des équipements destinés à la protection auditive.
Les méthodes de mesurage des caractéristiques d'annulation du bruit peuvent être appliquées aux casques et aux écouteurs qui n'ont aucune fonction d'annulation active du bruit.

Oprema zvokovnega sistema - 24. del: Naglavne in ušesne slušalke - Karakteristike aktivnega odpravljanja šumov (IEC 60268-24:2023)

General Information

Status
Published
Public Enquiry End Date
30-May-2023
Publication Date
13-Jun-2024
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
16-Jan-2024
Due Date
22-Mar-2024
Completion Date
14-Jun-2024

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 60268-24:2024
01-julij-2024
Oprema zvokovnega sistema - 24. del: Naglavne in ušesne slušalke -
Karakteristike aktivnega odpravljanja šumov (IEC 60268-24:2023)
Sound system equipment - Part 24: Headphones and earphones - Active acoustic noise
cancelling characteristics (IEC 60268-24:2023)
Elektroakustische Geräte - Teil 24: Kopfhörer und Ohrhörer - Eigenschaften zur aktiven
Geräuschunterdrückung (IEC 60268-24:2023)
Equipements pour systèmes électroacoustiques - Partie 24: Casques et écouteurs -
Caractéristiques d'annulation active du bruit acoustique (IEC 60268-24:2023)
Ta slovenski standard je istoveten z: EN IEC 60268-24:2024
ICS:
33.160.50 Pribor Accessories
SIST EN IEC 60268-24:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60268-24:2024

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SIST EN IEC 60268-24:2024


EUROPEAN STANDARD EN IEC 60268-24

NORME EUROPÉENNE

EUROPÄISCHE NORM January 2024
ICS 33.160.01

English Version
Sound system equipment - Part 24: Headphones and earphones
- Active acoustic noise cancelling characteristics
(IEC 60268-24:2023)
Équipements pour systèmes électroacoustiques - Partie 24: Elektroakustische Geräte - Teil 24: Kopfhörer und Ohrhörer
Casques et écouteurs - Caractéristiques d'annulation active - Eigenschaften zur aktiven Geräuschunterdrückung
du bruit acoustique (IEC 60268-24:2023)
(IEC 60268-24:2023)
This European Standard was approved by CENELEC on 2024-01-04. 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,
Türkiye 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60268-24:2024 E

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SIST EN IEC 60268-24:2024
EN IEC 60268-24:2024 (E)
European foreword
The text of document 100/3880/CDV, future edition 1 of IEC 60268-24, prepared by Technical Area 20
Analogue and digital audio, of IEC technical committee 100: Audio, video and multimedia systems and
equipment, was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN IEC 60268-24:2024.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-10-04
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-01-04
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 60268-24:2023 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 standard indicated:
ISO 4869-1:2018 NOTE Approved as EN ISO 4869-1:2018 (not modified)
ISO 11904-1:2002 NOTE Approved as EN ISO 11904-1:2002 (not modified)
2

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SIST EN IEC 60268-24:2024
EN IEC 60268-24:2024 (E)
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
consti
...

SLOVENSKI STANDARD
oSIST prEN IEC 60268-24:2023
01-maj-2023
Oprema zvokovnega sistema - 24. del: Naglavne in ušesne slušalk - karakteristike
aktivnega odpravljanja zvočnega hrupa
Sound system equipment - Part 24: Headphones and earphones - active acoustic noise
cancelling characteristics
Equipements pour systèmes électroacoustiques - Partie 24: Casques et écouteurs -
Caractéristiques d'annulation active du bruit acoustique
Ta slovenski standard je istoveten z: prEN IEC 60268-24:2023
ICS:
33.160.50 Pribor Accessories
oSIST prEN IEC 60268-24:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 60268-24:2023

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oSIST prEN IEC 60268-24:2023
100/3880/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60268-24 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-03-17 2023-06-09
SUPERSEDES DOCUMENTS:
100/3778/CD, 100/3822/CC

IEC TA 20 : ANALOGUE AND DIGITAL AUDIO
SECRETARIAT: SECRETARY:
Japan Mr Nobukazu Suzuki
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 100
Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.

This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of
• any relevant patent rights of which they are aware and to provide supporting documentation,
• any relevant “in some countries” clauses to be included should this proposal proceed. Recipients are reminded that the
enquiry stage is the final stage for submitting "in some countries" clauses. See AC/22/2007.

TITLE:
SOUND SYSTEM EQUIPMENT – Part 24: Headphones and earphones – active acoustic noise cancelling
characteristics

PROPOSED STABILITY DATE: 2026

NOTE FROM TC/SC OFFICERS:

1
Copyright © 2023 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

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oSIST prEN IEC 60268-24:2023
– 2 – IEC CDV 60268-24  IEC:2023
2 CONTENTS
3
4 FOREWORD . 4
5 INTRODUCTION . 6
6 1 Scope . 7
7 2 Normative references . 7
8 3 Terms and definitions . 8
9 4 Measurement method for noise cancelling characteristics . 9
10 4.1 Characteristics to be specified . 9
11 4.2 Test signals . 10
12 4.2.1 Pink noise. 10
13 4.2.2 Simulated environmental noise . 10
14 4.3 Nominal environmental conditions . 13
15 4.3.1 Test site . 13
16 4.3.2 Ambient noise . 14
17 4.4 Test equipment . 14
18 4.4.1 Play back equipment for test signals . 14
19 4.4.2 Acoustic test equipment .
...

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