IEC 63296-2:2023

Portable multimedia equipment - Determination of battery duration - Part 2: Headphones and earphones with active noise-cancelling functions

IEC 63296-2:2023 is applicable to active acoustic noise-cancelling headphones and earphones that have the function of reducing the ambient noise heard by the user by the level of the output sound from the transducer, which is generated by the ambient noise detection microphone and the noise reduction signal processing circuit.
This document covers headphones and earphones to be worn over-the-ear or in-ear, all of which are referred to as "headphones" in this document.
This document specifies the terms and definitions relating to battery duration of this type of headphones and the measurement and evaluation methods.
The noise-detection microphones are mounted in the body, on the surface, or on an accessory of the headphones. Signal-processing circuits are analogue and digital electronic circuits.
This document does not deal with equipment intended for hearing protection. It is also not applicable to music players, recorders, etc. that have a noise-cancelling function.
The battery duration measurement methods can be applied to headphones having no active noise-cancelling function.

Matériel multimédia portable - Détermination de la durée des batteries - Partie 2: Casques et écouteurs avec fonctions de réduction de bruit active

L'IEC 63296-2:2023 s'applique aux casques et écouteurs à réduction du bruit acoustique active dont la fonction est de réduire le bruit ambiant entendu par l'utilisateur en agissant sur le niveau du son obtenu en sortie du transducteur qui est généré par le microphone de détection du bruit ambiant et le circuit de traitement du signal de réduction du bruit.
Le présent document couvre les casques et les écouteurs supra-auriculaires et intra‑auriculaires, qui sont tous désignés par le terme "casques" dans le présent document.
Le présent document spécifie les termes et définitions qui concernent la durée des batteries de ce type de casques ainsi que les méthodes de mesurage et d'évaluation.
Les microphones de détection du bruit sont montés dans le corps, à la surface ou sur un accessoire des casques. Les circuits de traitement du signal sont des circuits électroniques analogiques et numériques.
Le présent document ne traite pas des matériels destinés à la protection auditive. Il ne s'applique pas non plus aux lecteurs de musique, aux enregistreurs, etc. qui possèdent une fonction de réduction du bruit.
Les méthodes de mesurage de la durée des batteries peuvent être appliquées aux casques qui n'ont pas de fonction de réduction de bruit active.

General Information

• Status: Published
• Publication Date: 07-Dec-2023
• ICS: 33.160.50 - Accessories
• Technical Committee: TA 19 - Environmental and energy aspects for multimedia systems and equipment
• Drafting Committee: WG 1 - TC 100/TA 19/WG 1
• Current Stage: PPUB - Publication issued
• Start Date: 05-Jan-2024
• Completion Date: 08-Dec-2023

Standards Content (Sample)

IEC 63296-2 ®
Edition 1.0 2023-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Portable multimedia equipment – Determination of battery duration –
Part 2: Headphones and earphones with active noise-cancelling functions

Matériel multimédia portable – Détermination de la durée des batteries –
Partie 2: Casques et écouteurs avec fonctions de réduction de bruit active
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IEC 63296-2 ®
Edition 1.0 2023-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Portable multimedia equipment – Determination of battery duration –

Part 2: Headphones and earphones with active noise-cancelling functions

Matériel multimédia portable – Détermination de la durée des batteries –

Partie 2: Casques et écouteurs avec fonctions de réduction de bruit active

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.50  ISBN 978-2-8322-7956-4

– 2 – IEC 63296-2:2023 © IEC 2023
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Measuring method of battery duration . 8
4.1 General . 8
4.2 Test signal . 8
4.3 Ambient noise signal . 8
4.4 Standard conditions for measurement . 9
4.4.1 General conditions for measurement . 9
4.4.2 Test site . 9
4.5 Test equipment . 9
4.6 Preparation of headphones . 9
4.6.1 Battery to be measured . 9
4.6.2 Input setting. 9
4.7 Test procedure for measurement of battery duration . 10
4.7.1 Adjustment of test signal level . 10
4.7.2 Adjustment of loudness of ambient noise signal . 10
4.7.3 Measurement of battery duration . 10
5 Characteristics to be specified . 10
Annex A (informative) Verification procedure . 11
A.1 General . 11
A.2 Verification procedure . 11
Bibliography . 12

Figure 1 – Example of a battery duration measurement system . 9
Figure A.1 – Flowchart, verification procedure . 11

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PORTABLE MULTIMEDIA EQUIPMENT –
DETERMINATION OF BATTERY DURATION –

Part 2: Headphones and earphones with
active noise-cancelling functions

FOREWORD
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IEC 63296-2 has been prepared by technical area 19: Environmental and energy aspects for
multimedia systems and equipment, of IEC technical committee 100: Audio, video and
multimedia systems and equipment. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
100/4049/FDIS 100/4080/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
– 4 – IEC 63296-2:2023 © IEC 2023
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 63296 series, published under the general title Portable multimedia
equipment – Determination of battery duration, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn
...