EN 60958-4-2:2016

Digital audio interface - Part 4-2: Professional applications - Metadata and subcode

IEC 60958-4-2:2016 specifies the format for coding metadata, or subcode, that relates to the audio content and is carried with it. This part of IEC 60958, together with IEC 60958-1, IEC 60958-4-1, and IEC 60958-4-4, specifies an interface for serial digital transmission of two channels of periodically sampled and linearly represented digital audio data from one transmitter to one receiver. This first edition, together with IEC 60958-4-1 and IEC 60958-4-4, cancels and replaces IEC 60958-4 published in 2003 and its Amendment 1:2008 and constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 60958-4:2003 with its Amendment 1:2008: - support for a wider range of physical media; - support for a wider range of audio sampling frequencies; - deprecation of "minimum implementation" of channel status data.

Digitalton-Schnittstelle - Teil 4-2: Professioneller Gebrauch - Metadaten und Subcode

Interface audionumérique - Partie 4-2: Applications professionnelles - Métadonnées et sous-code

L'IEC 60958-4-2:2016 spécifie le format de codage de métadonnées ou d'un sous-code, qui sont relatifs au contenu audio et sont transportés avec ce dernier. La présente partie de l'IEC 60958 et l'IEC 60958-1, l'IEC 60958-4-1 et l'IEC 60958-4-4 précisent conjointement une interface de transmission numérique en série de deux voies de données audionumériques échantillonnées de façon périodique et représentées de façon linéaire entre un émetteur et un récepteur. Cette première édition, avec l'IEC 60958-4-1 et l'IEC 60958-4-4, annule et remplace l'IEC 60958-4 parue en 2003 et l'Amendement 1:2008 et constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'IEC 60958-4:2003 et son Amendement 2008: - prise en charge d'une gamme plus large de supports physiques; - prise en charge d'une gamme plus large de fréquences d'échantillonnage audio; - "mise en oeuvre minimale" des données de la voie de signalisation déconseillée.

Digitalni avdio vmesnik - 4-2. del: Profesionalna uporaba - Metapodatki in subkoda (IEC 60958-4-2:2016)

Ta del standarda IEC 60958 opredeljuje format za kodiranje metapodatkov ali subkodo, ki je povezana z zvočno vsebino in jo ta vključuje. Ta del standarda IEC 60958 skupaj s standardi IEC 60958-1, IEC 60958-4-1 in IEC 60958-4-4 opredeljuje vmesnik za serijski digitalni prenos dveh kanalov periodično vzorčenih in linearno predstavljenih digitalnih zvočnih podatkov od določenega oddajnika do določenega sprejemnika.

General Information

• Status: Published
• Publication Date: 30-Jun-2016
• Withdrawal Date: 27-Apr-2019
• ICS: 33.160.30 - Audio systems
• Technical Committee: CLC/TC 100X - Audio, video and multimedia systems and equipment and related sub-systems
• Drafting Committee: IEC/TC 100 - IEC_TC_100
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 01-Jul-2016
• Completion Date: 01-Jul-2016
• Ref Project: SIST EN 60958-4-2:2016 - Digital audio interface - Part 4-2: Professional applications - Metadata and subcode (IEC 60958-4-2:2016)

Relations

• Replaces: EN 60958-4:2003 - Digital audio interface - Part 4: Professional applications
• Effective Date: 07-Jun-2022
• Replaces: EN 60958-4:2003/A1:2008 - Digital audio interface - Part 4: Professional applications
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2016
1DGRPHãþD
SIST EN 60958-4:2004
Digitalni avdio vmesnik - 4-2. del: Profesionalna uporaba - Metapodatki in subkoda
(IEC 60958-4-2:2016)
Digital audio interface - Part 4-2: Professional applications - Metadata and subcode (IEC
60958-4-2:2016)
Digitalton-Schnittstelle - Teil 4-2: Professioneller Gebrauch - Metadaten und Subcode
(IEC 60958-4-2:2016)
Interface audionumérique - Partie 4-2: Applications professionnelles - Métadonnées et
sous-code (IEC 60958-4-2:2016)
Ta slovenski standard je istoveten z: EN 60958-4-2:2016
ICS:
33.160.30 Avdio sistemi Audio systems
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60958-4-2

NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2016
ICS 33.160.30 Supersedes EN 60958-4:2003 (partially)
English Version
Digital audio interface -
Part 4-2: Professional applications -
Metadata and subcode
(IEC 60958-4-2:2016)
Interface audionumérique -  Digitalton-Schnittstelle -
Partie 4-2: Applications professionnelles -  Teil 4-2: Professioneller Gebrauch -
Métadonnées et sous-code Metadaten und Subcode
(IEC 60958-4-2:2016) (IEC 60958-4-2:2016)
This European Standard was approved by CENELEC on 2016-04-28. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60958-4-2:2016 E
European foreword
The text of document 100/2453/CDV, future edition 1 of IEC 60958-4-2, prepared by Technical Area 4
"Digital system interfaces and protocols", of IEC/TC 100 "Audio, video and multimedia systems and
equipment" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at (dop) 2017-01-28
national level by publication of an identical national
standard or by endorsement
(dow) 2019-04-28
• latest date by which the national standards conflicting with
the document have to be withdrawn

This document, together with EN 60958-4-1:2016 and EN 60958-4-4:2016, supersedes EN 60958-4:2003.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60958-4-2:2016 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:
IEC 60958 NOTE Harmonized in EN 60958 series.
IEC 62365:2009 NOTE Harmonized as EN 62365:2009 (not modified).
IEC 62537 NOTE Harmonized as EN 62537.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is
available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 60958-1 2008 Digital audio interface - EN 60958-1 2008
Part 1: General
+ A1 2014 + A1 2014
IEC 60958-3 -  Digital audio interface - EN 60958-3 -
Part 3: Consumer applications
IEC 60958-4-1 -  Digital audio interface - EN 60958-4-1 -
Part 4-1: Professional applications -
Audio content
IEC 60958-4-4 -  Digital audio interface - EN 60958-4-4 -
Part 4-4: Professional applications -
Physical and electrical parameters
ISO/IEC 646 -  Information technology - ISO 7-bit coded - -
character set for information interchange
ITU-R -  Transmission standards for FM sound - -
Recommendation broadcasting at VHF
BS.450-3
ITU-T -  Pre-emphasis used on sound- - -
Recommendation programme circuits
J.17
IEC 60958-4-2 ®
Edition 1.0 2016-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Digital audio interface –
Part 4-2: Professional applications – Metadata and subcode

Interface audionumérique –
Partie 4-2: Applications professionnelles – Métadonnées et sous-code

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.30 ISBN 978-2-8322-3247-7

– 2 – IEC 60958-4-2:2016 © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Terms, definitions and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Abbreviations . 8
4 User data format . 8
5 Channel status format . 8
5.1 Channel status bit . 8
5.2 Channel status block . 8
5.3 Implementation . 9
5.3.1 Implementation levels . 9
5.3.2 Transmitter requirement . 9
5.3.3 Receiver requirement . 9
5.4 Documentation . 9
5.5 Channel status content . 9
5.5.1 General . 9
5.5.2 Byte 0: Basic audio parameters . 11
5.5.3 Byte 1: Channel modes, user bits management . 12
5.5.4 Byte 2: Auxiliary bits, word length and alignment level . 12
5.5.5 Byte 3: Multichannel modes . 13
5.5.6 Byte 4: DARS, hidden information, multiple-rate sampling frequencies . 14
5.5.7 Byte 5: Reserved . 15
5.5.8 Bytes 6 to 9: Alphanumeric channel origin . 16
5.5.9 Bytes 10 to 13: Alphanumeric channel destination . 16
5.5.10 Bytes 14 to 17: Local sample address code . 16
5.5.11 Bytes 18 to 21: Time-of-day sample address code . 16
5.5.12 Byte 22: Reserved . 16
5.5.13 Byte 23: Channel status data CRCC . 17
5.6 Channel status when non-PCM audio is flagged . 17
6 Auxiliary bits . 17
6.1 Availability of auxiliary bits . 17
6.2 Use of auxiliary bits . 17
Annex A (informative) Channel modes . 18
Annex B (informative) Provision of additional, voice-quality channels . 19
Annex C (informative) Generation of CRCC (byte 23) for channel status . 20
Bibliography . 22

Figure 1 – Channel status data format . 10
Figure B.1 – Frame and block structure . 19
Figure C.1 – Flow diagram including exclusive or gates . 20

IEC 60958-4-2:2016 © IEC 2016 – 3 –

Table 1 – Non-PCM audio, protected status bits . 17

– 4 – IEC 60958-4-2:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL AUDIO INTERFACE –
Part 4-2: Professional applications – Metadata and subcode

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
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agreement between the two organizations.
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consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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