IEC 62944:2016
(Main)Audio, video and multimedia systems and equipment - Digital television accessibility - Functional specifications
Audio, video and multimedia systems and equipment - Digital television accessibility - Functional specifications
IEC 62944:2016 specifies a set of principles and considerations for digital television products in support of older people and persons with disabilities in addition to mainstream users. The effect of following the principles and considerations as set out in this document is to ensure that the widest range of users can access, understand and use digital television products. These principles and considerations cover four main user profiles such as individuals with hearing impairments, individuals with sight impairments, individuals with mobility impairments and individuals with cognitive impairments.
Systèmes et équipements audio, vidéo et multimédias - Accessibilité des télévisions numériques - Spécifications fonctionnelles
L'IEC 62944:2016 spécifie un ensemble de principes et préceptes pour les produits de télévision numérique destinés aux personnes âgées et aux personnes handicapées, en plus des utilisateurs conventionnels. Le respect des principes et préceptes spécifiés dans le présent document permet de s'assurer que la plupart des utilisateurs peuvent accéder aux produits de télévision numérique, mais également les comprendre et les utiliser. Ces principes et préceptes concernent quatre profils d'utilisateurs principaux, à savoir les personnes malentendantes, les personnes malvoyantes, les personnes à mobilité réduite et les personnes souffrant de déficiences cognitives.
Le présent document s'applique aux solutions grand public dont la fonction principale est de recevoir la télévision numérique, comme les téléviseurs numériques intégrés, les boîtiers décodeurs, les enregistreurs numériques et les produits et dispositifs équivalents (voir Annexe D). Toutes ces solutions sont appelées solutions de télévision numérique dans l'ensemble du présent document. La présente norme ne traite pas des solutions pour lesquelles la prise charge de la télévision numérique constitue une fonction secondaire (consoles de jeux ou ordinateurs équipés d'une carte de réception numérique, par exemple). Toutefois, une grande partie de son contenu prévoit également l'intégration de futures solutions et/ou mises en œuvre. Le présent document ne traite pas de la livraison, du déballage, du montage en toute sécurité sur un support ou au mur, ni du premier branchement de l'alimentation électrique et des signaux.
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IEC 62944 ®
Edition 1.0 2016-12
INTERNATIONAL
STANDARD
Audio, video and multimedia systems and equipment – Digital television
accessibility – Functional specifications
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC 62944 ®
Edition 1.0 2016-12
INTERNATIONAL
STANDARD
Audio, video and multimedia systems and equipment – Digital television
accessibility – Functional specifications
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 11.180.99; 33.160.01; 35.240.95 ISBN 978-2-8322-3686-4
– 2 – IEC 62944:2016 © IEC 2016
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 9
4 General . 10
4.1 Overview. 10
4.2 Objective . 10
4.3 Summary . 10
4.4 Principles . 11
4.5 Considerations . 11
5 Accessibility related to auditory perception . 11
5.1 Overview. 11
5.2 Essential functions . 11
5.2.1 List of functions . 11
5.2.2 Closed captioning . 12
5.2.3 Subtitles . 12
5.2.4 (Open) Sign language . 12
5.3 Additional functions . 13
6 Accessibility related to visual perception. 13
6.1 Overview. 13
6.2 Essential functions . 13
6.2.1 List of functions . 13
6.2.2 Audio description . 14
6.2.3 Spoken subtitles . 14
6.3 Additional functions . 14
6.4 Solutions for users with little or no visual perception . 14
6.4.1 Physical buttons and keys . 14
6.4.2 Assistive speech . 16
6.4.3 Tone-based feedback . 17
6.4.4 Speech recognition . 18
6.5 Solutions for users with low visual perception . 18
6.5.1 Overview . 18
6.5.2 Large fonts, icons, and buttons . 18
6.5.3 Screen magnifier . 19
6.5.4 Arrows . 20
6.5.5 High contrast . 20
6.5.6 Background images . 20
6.6 Solutions for those with limited colour vision perception . 20
7 Accessibility related to mobility . 20
7.1 Overview. 20
7.2 Functions . 21
7.2.1 General . 21
7.2.2 Single hand operation . 21
7.2.3 Single button operation . 21
7.2.4 Resting the remote control on a surface . 21
7.2.5 Angle of use . 21
8 Accessibility related to cognitive abilities . 21
8.1 Overview. 21
8.2 Language . 22
8.3 Icons . 22
8.4 Labels . 22
8.5 Buttons . 22
8.6 Use of red . 22
8.7 Simplicity . 22
9 Accessibility related all (other) perception . 22
9.1 Setup . 22
9.1.1 Overview . 22
9.1.2 Entering account and authorisation information . 23
9.1.3 Suggested sequence for initial setup . 23
9.2 Content search . 24
Annex A (informative) Remote controls and buttons . 26
Annex B (informative) On screen display . 28
Annex C (informative) Content . 29
C.1 General . 29
C.2 Closed captioning . 29
C.3 Spoken subtitles . 29
C.4 Subtitles . 29
C.5 (Open) Sign language . 30
Annex D (informative) External devices. 31
D.1 Overview. 31
D.2 Pairing with external devices . 31
D.3 External audio/headphone connections . 32
D.4 Support for USB human interface input/output devices . 32
Annex E (informative) Background . 33
E.1 Widest range of users . 33
E.2 Context of use . 33
E.3 Accessibility considerations . 34
E.4 Accessibility principles . 34
E.4.1 General . 34
E.4.2 Functional equivalency . 35
E.4.3 User interface accessibility . 35
E.4.4 Content accessibility . 35
E.4.5 Accessibility through external solutions . 36
E.4.6 Evaluating accessibility and usability . 36
E.4.7 Multi-modality . 37
Annex F (informative) Brief user profile outline . 38
F.1 Preliminary remarks . 38
F.2 Key demographic groups . 38
F.2.1 Blind and partially sighted people . 38
F.2.2 People with colour blindness .
...
IEC 62944 ®
Edition 1.0 2016-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Audio, video and multimedia systems and equipment – Digital television
accessibility – Functional specifications
Systèmes et équipements audio, vidéo et multimédias – Accessibilité
des télévisions numériques – Spécifications fonctionnelles
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
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utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
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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
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IEC 62944 ®
Edition 1.0 2016-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Audio, video and multimedia systems and equipment – Digital television
accessibility – Functional specifications
Systèmes et équipements audio, vidéo et multimédias – Accessibilité
des télévisions numériques – Spécifications fonctionnelles
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 11.180.99; 33.160.01; 35.240.95 ISBN 978-2-8322-1074-8
– 2 – IEC 62944:2016 © IEC 2016
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 9
4 General . 10
4.1 Overview. 10
4.2 Objective . 10
4.3 Summary . 10
4.4 Principles . 11
4.5 Considerations . 11
5 Accessibility related to auditory perception . 11
5.1 Overview. 11
5.2 Essential functions . 11
5.2.1 List of functions . 11
5.2.2 Closed captioning . 12
5.2.3 Subtitles . 12
5.2.4 (Open) Sign language . 12
5.3 Additional functions . 13
6 Accessibility related to visual perception. 13
6.1 Overview. 13
6.2 Essential functions . 13
6.2.1 List of functions . 13
6.2.2 Audio description . 14
6.2.3 Spoken subtitles . 14
6.3 Additional functions . 14
6.4 Solutions for users with little or no visual perception . 14
6.4.1 Physical buttons and keys . 14
6.4.2 Assistive speech . 16
6.4.3 Tone-based feedback . 17
6.4.4 Speech recognition . 18
6.5 Solutions for users with low visual perception . 18
6.5.1 Overview . 18
6.5.2 Large fonts, icons, and buttons . 18
6.5.3 Screen magnifier . 19
6.5.4 Arrows . 20
6.5.5 High contrast . 20
6.5.6 Background images . 20
6.6 Solutions for those with limited colour vision perception . 20
7 Accessibility related to mobility . 20
7.1 Overview. 20
7.2 Functions . 21
7.2.1 General . 21
7.2.2 Single hand operation . 21
7.2.3 Single button operation . 21
7.2.4 Resting the remote control on a surface . 21
7.2.5 Angle of use . 21
8 Accessibility related to cognitive abilities . 21
8.1 Overview. 21
8.2 Language . 22
8.3 Icons . 22
8.4 Labels . 22
8.5 Buttons . 22
8.6 Use of red . 22
8.7 Simplicity . 22
9 Accessibility related all (other) perception . 22
9.1 Setup . 22
9.1.1 Overview . 22
9.1.2 Entering account and authorisation information . 23
9.1.3 Suggested sequence for initial setup . 23
9.2 Content search . 24
Annex A (informative) Remote controls and buttons . 26
Annex B (informative) On screen display . 28
Annex C (informative) Content . 29
C.1 General . 29
C.2 Closed captioning . 29
C.3 Spoken subtitles . 29
C.4 Subtitles . 29
C.5 (Open) Sign language . 30
Annex D (informative) External devices. 31
D.1 Overview.
...
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