EN 61937-1:2007

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 1: General

applies to the digital audio interface using the IEC 60958 series for the conveying of non-linear PCM encoded audio bitstreams. It describes the way in which this digital interface can be used in consumer applications. Cancels and replaces the first edition published in 2000. This edition contains the following significant technical changes with respect to the previous edition. - The data-type field in Pc is expanded from bit 0-4 to bit 0-6. - A new additional definition of Pd is specified. - The numbers of times for symbol frequency are changed to refer to each part of IEC 61937. - The requirement for burst spacing is changed.

Digitalton - Schnittstelle für nichtlinear-PCM-codierte Audio-Bitströme unter Verwendung von IEC 60958 - Teil 1: Allgemeines

Audionumérique - Interface pour les flux de bits audio à codage MIC non linéaire conformément à la CEI 60958 - Partie 1: Généralités

La CEI 61937-1:2007 s'applique à l'interface audionumérique conforme à la série CEI 60958, pour l'acheminement des flux de bits audio à codage MIC non linéaire. Elle décrit la manière d'utiliser cette interface dans les applications grand public. Le domaine d'application de la présente norme ne couvre pas le domaine professionnel (AES/EBU). Cette seconde édition annule et remplace la première édition publiée en 2000. Elle contient les modifications techniques majeures suivantes par rapport à l'édition précédente: - Le champ type-de-données dans Pc est étendu des bits 0 à 4 aux bits 0 à 6. - Une nouvelle définition de Pd est spécifiée. - Les coefficients de multiplication pour la fréquence des symboles sont changés pour faire référence à chaque partie de la CEI 61937. - L'exigence sur l'espacement entre les salves est changée. La présente version bilingue, publiée en 2011-04, correspond à la version anglaise. La version française de cette norme n'a pas été soumise au vote.

Digitalni avdio-vmesnik za nelinearne PCM-kodirane avdio bitne tokove po IEC 60958 – 1. del: Splošno (IEC 61937-1:2007)

Ta del standarda IEC 61937 se uporablja za digitalni avdio vmesnik, pri katerem se nelinearni PCM-kodirani avdio bitni tokovi prenašajo v skladu s serijo standardov IEC 60958. Opisuje način uporabe tega digitalnega vmesnika v zabavni elektroniki. Profesionalni način (AES/EBU) ni del področja uporabe tega standarda.

General Information

• Status: Withdrawn
• Publication Date: 01-Mar-2007
• Withdrawal Date: 31-Jan-2010
• 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
• Parallel Committee: IEC/TC 100 - IEC_TC_100
• Ref Project: SIST EN 61937-1:2007 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 -- Part 1: General

Relations

• Replaces: EN 61937-1:2003 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 1: General
• Effective Date: 28-Jan-2023
• Amended By: EN 61937-1:2007/A1:2011 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 1: General
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2007
1DGRPHãþD
SIST EN 61937-1:2004
Digitalni avdio-vmesnik za nelinearne PCM-kodirane avdio bitne tokove po IEC
60958 – 1. del: Splošno (IEC 61937-1:2007)
Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC
60958 -- Part 1: General
Digitalton - Schnittstelle für nichtlinear-PCM-codierte Audio-Bitströme unter Verwendung
von IEC 60958 -- Teil 1: Allgemeines
Audionumérique - Interface pour les flux de bits audio à codage MIC non linéaire
conformément à la CEI 60958 -- Partie 1: Généralités
Ta slovenski standard je istoveten z: EN 61937-1:2007
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 61937-1
NORME EUROPÉENNE
March 2007
EUROPÄISCHE NORM
ICS 33.160.30 Supersedes EN 61937-1:2003

English version
Digital audio -
Interface for non-linear PCM encoded audio bitstreams
applying IEC 60958 -
Part 1: General
(IEC 61937-1:2007)
Audionumérique -  Digitalton -
Interface pour les flux de bits audio Schnittstelle für nichtlinear-PCM-codierte
à codage MIC non linéaire Audio-Bitströme unter Verwendung
conformément à la CEI 60958 - von IEC 60958 -
Partie 1: Généralités Teil 1: Allgemeines
(CEI 61937-1:2007) (IEC 61937-1:2007)

This European Standard was approved by CENELEC on 2007-02-01. 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 Central Secretariat or to any CENELEC member.

This European Standard exists in two official versions (English and 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
Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61937-1:2007 E
Foreword
The text of document 100/1101/CDV, future edition 2 of IEC 61937-1, 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 Unique Acceptance Procedure and was
approved by CENELEC as EN 61937-1 on 2007-02-01.
This European Standard supersedes EN 61937-1:2003.
This edition contains the following significant technical changes with respect to EN 61937-1:2003.
– The data-type field in Pc is expanded from bit 0-4 to bit 0-6.
– A new additional definition of Pd is specified.
– The numbers of times for symbol frequency are changed to refer to each part of EN 61937.
– The requirement for burst spacing is changed.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2007-11-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2010-02-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61937-1:2007 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 61603 NOTE  Harmonized in EN 61603 series (not modified).
IEC 61883-6 NOTE  Harmonized as EN 61883-6:2005 (not modified).
IEC 62105 NOTE  Harmonized as EN 62105:2002 (not modified).
__________
- 3 - EN 61937-1:2007
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
IEC 60958 Series Digital audio interface EN 60958 Series

IEC 61937 Series Digital audio - Interface for non-linear PCM EN 61937 Series
encoded audio bitstreams applying
IEC 60958
INTERNATIONAL IEC
STANDARD 61937-1
Second edition
2007-01
Digital audio –
Interface for non-linear PCM encoded
audio bitstreams applying IEC 60958
Part 1: General
© IEC 2007 ⎯ Copyright - all rights reserved
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 the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale S
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 61937-1 © IEC:2007(E)
CONTENTS
FOREWORD.4

1 Scope.6
2 Normative references .6
3 Terms, definitions, abbreviations and presentation .6
3.1 Definitions .6
3.2 Abbreviations .8
3.3 Presentation convention .8
4 General description .8
5 Interface format .9
6 Mapping of the audio bitstream on to IEC 60958 .9
6.1 Coding of the bitstream .9
6.2 Burst-payload.14
6.3 Stuffing .15
7 Format of data-bursts .15
7.1 Pause data-burst.16
7.2 Audio data-bursts .19
7.3 Null data-burst.19

Annex A (normative) Channel status when IEC 60958 is used in consumer
applications .20

Bibliography.21

Figure 1 – IEC 60958 interface format .9
Figure 2 – Data-burst format .11
Figure 3 – Burst-preamble .11
Figure 4 – Burst-preamble with extended preamble .13
Figure 5 – Length of the burst-payload specified by Pd .14
Figure 6 – Burst spacing .15
Figure 7 – Flow chart of transmission of a bitstream .16
Figure 8 – Bridging gaps in-between data-bursts with three pause data-bursts .17
Figure 9 – Data-burst format of the data-type pause .18
Figure 10 – Null data-burst .19

Table 1 – Bit allocation of the IEC 60958 frame .9
Table 2 – Bit allocation of data-burst in IEC 60958 subframes .10
Table 3 – Burst-preamble words .12
Table 4 – Bit map of burst-preambles .12
Table 5 – Fields of burst-info .12
Table 6 – Burst-preamble words .13
Table 7 – Fields of Pe (extended data-type).13

61937-1 © IEC:2007(E) – 3 –
Table 8 – Fields of Pf.13
Table 9 – Values of data-type-dependent info of the pause data-burst .18
Table 10 – Burst-payload of pause data-burst.19
Table 11 – Fields of a null data-burst .19
Table A.1 – Allocation of the channel status bits .20

– 4 – 61937-1 © IEC:2007(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL AUDIO –
INTERFACE FOR NON-LINEAR PCM ENCODED
AUDIO BITSTREAMS APPLYING IEC 60958 –

Part 1: General
FOREWORD
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