IEC 61937-10:2017

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 10: Non-linear PCM bitstreams according to the MPEG-4 audio lossless coding (ALS) format

IEC 61937-10:2017(E) specifies the method for IEC 60958 to convey non-linear PCM bitstreams encoded in accordance with the MPEG-4 audio lossless coding (ALS) format.
This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Addition of Levels 2, 3, 4 of MPEG-4 ALS Simple Profile;
b) Addition of data-type bits 0-4 and data-type bits 5-6 for MPEG-4 ALS with LATM/LOAS header.

General Information

• Status: Published
• Publication Date: 27-Jul-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.160.30 - Audio systems
• ICS: 35.240.99 - IT applications in other fields
• Technical Committee: TA 20 - Analogue and digital audio
• Drafting Committee: MT 61937-10 - TC 100/MT 61937-10
• Current Stage: PPUB - Publication issued
• Start Date: 04-Aug-2017
• Completion Date: 28-Jul-2017

Relations

• Revises: IEC 61937-10:2011 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 10: Non-linear PCM bitstreams according to the MPEG-4 audio lossless coding (ALS) format
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61937-10
®

Edition 2.0 2017-07
INTERNATIONAL
STANDARD



Digital audio – interface for non-linear PCM encoded audio bitstreams applying
IEC 60958 –
Part 10: Non-linear PCM bitstreams according to the MPEG-4 audio lossless
coding (ALS) format
IEC 61937-10:2017-07(en)

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
Copyright © 2017 IEC, Geneva, Switzerland

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.


IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch

About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
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
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].

---------------------- Page: 2 ----------------------
IEC 61937-10

®


Edition 2.0 2017-07




INTERNATIONAL



STANDARD



















Digital audio – interface for non-linear PCM encoded audio bitstreams applying

IEC 60958 –

Part 10: Non-linear PCM bitstreams according to the MPEG-4 audio lossless


coding (ALS) format























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 33.160.30; 35.240.99 ISBN 978-2-8322-4560-6



  Warning! Make sure that you obtained this publication from an authorized distributor.


® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 3 ----------------------
– 2 – IEC 61937-10:2017 © IEC 2017

CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions, abbreviated terms and conventions . 5
3.1 Terms and definitions . 5
3.2 Abbreviated terms . 7
3.3 Presentation convention . 7
4 Mapping of the audio bitstream onto IEC 61937 . 7
4.1 General .
...