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IEC 61937-11:2021

(Main)

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 11: MPEG-4 AAC and its extensions and MPEG-D USAC in LATM/LOAS

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 11: MPEG-4 AAC and its extensions and MPEG-D USAC in LATM/LOAS

IEC 61937-11:2021 is available as IEC 61937-11:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61937-11:2021 describes the method to convey non-linear PCM bitstreams encoded in accordance with the MPEG-4 AAC format and its extensions (spectral band replication, parametric stereo and MPEG surround), and non-linear PCM bitstreams encoded in accordance with the MPEG-D USAC format, framed in MPEG-4 LATM/LOAS. IEC 61937-11:2021 cancels and replaces the first edition published in 2010, and Amendment 1:2018. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) MPEG-D USAC has been added.

General Information

Status
Published
Publication Date
14-Jul-2021
ICS
33.160.30 - Audio systems
33.170 - Television and radio broadcasting
Technical Committee
TA 20 - Analogue and digital audio
Drafting Committee
MT 61937-11 - TC 100/TA 20/MT 61937-11
Current Stage
PPUB - Publication issued
Start Date
29-Jul-2021
Completion Date
15-Jul-2021
Ref Project

Relations

Revises
IEC 61937-11:2010/AMD1:2018 - Amendment 1 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 11: MPEG-4 AAC and its extensions in LATM/LOAS
Effective Date
05-Sep-2023
Revises
IEC 61937-11:2010 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 11: MPEG-4 AAC and its extensions in LATM/LOAS
Effective Date
05-Sep-2023

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IEC 61937-11:2021 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 11: MPEG-4 AAC and its extensions and MPEG-D USAC in LATM/LOASIEC 61937-11:2021 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 11: MPEG-4 AAC and its extensions and MPEG-D USAC in LATM/LOAS
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IEC 61937-11:2021 - Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 11: MPEG-4 AAC and its extensions and MPEG-D USAC in LATM/LOAS
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IEC 61937-11
®

Edition 2.0 2021-07
INTERNATIONAL
STANDARD



Digital audio – Interface for non-linear PCM encoded audio bitstreams applying
IEC 60958 –
Part 11: MPEG-4 AAC and its extensions and MPEG-D USAC in LATM/LOAS
IEC 61937-11:2021-07(en)

---------------------- Page: 1 ----------------------
THIS PUBLICATION IS COPYRIGHT PROTECTED
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---------------------- Page: 2 ----------------------
IEC 61937-11

®


Edition 2.0 2021-07




INTERNATIONAL



STANDARD



















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

IEC 60958 –

Part 11: MPEG-4 AAC and its extensions and MPEG-D USAC in LATM/LOAS


























INTERNATIONAL

ELECTROTECHNICAL

COMMISSION





ICS 33.160.30; 33.170 ISBN 978-2-8322-9950-0




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


® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 3 ----------------------
– 2 – IEC 61937-11:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Terms and definitions . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 9
4 Mapping of the audio bit stream on to IEC 61937-1 . 10
4.1 General . 10
4.2 Burst-info for MPEG-4 AAC and its extensions and MPEG-D USAC in
LATM/LOAS . 10
5 Format of data-burst for MPEG-4 AAC and its extensions and MPEG-D USAC in
LATM/LOAS .
...

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