ISO/IEC 23003-6:2022
(Main)Information technology — MPEG audio technologies — Part 6: Unified speech and audio coding reference software
Information technology — MPEG audio technologies — Part 6: Unified speech and audio coding reference software
This document contains simulation software for the Unified speech and audio coding standard as defined in ISO/IEC 23003-3.
Technologies de l'information — Technologies audio MPEG — Partie 6: Logiciel de référence pour le codage unifié parole et audio
General Information
Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD 23003-6
First edition
2022-08
Information technology — MPEG
audio technologies —
Part 6:
Unified speech and audio coding
reference software
Technologies de l'information — Technologies audio MPEG —
Partie 6: Logiciel de référence pour le codage unifié parole et audio
Reference number
ISO/IEC 23003-6:2022(E)
© ISO/IEC 2022
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ISO/IEC 23003-6:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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Published in Switzerland
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© ISO/IEC 2022 – All rights reserved
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ISO/IEC 23003-6:2022(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Reference software structure .1
4.1 General . 1
4.2 Copyright disclaimer for software modules . 2
5 Bitstream decoding software .3
5.1 General . 3
5.2 USAC decoding software . 3
Annex A (informative) Bitstream encoding software . 4
Annex B (informative) Additional utility software . 5
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ISO/IEC 23003-6:2022(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical
activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international
organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the
work.
The procedures used to develop this document and those intended for its further maintenance
are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria
needed for the different types of document should be noted. This document was drafted in
accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives or
www.iec.ch/members_experts/refdocs).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents) or the IEC
list of patent declarations received (see https://patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see
www.iso.org/iso/foreword.html. In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information.
A list of all parts in the ISO/IEC 23003 series can be found on the ISO and IEC websites.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www.iso.org/members.html and
www.iec.ch/national-committees.
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INTERNATIONAL STANDARD ISO/IEC 23003-6:2022(E)
Information technology — MPEG audio technologies —
Part 6:
Unified speech and audio coding reference software
1 Scope
This document contains simulation software for the Unified speech and audio coding standard as
defined in ISO/IEC 23003-3.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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.
ISO/IEC 23003-3, Information technology — MPEG audio technologies — Part 3: Unified speech and audio
coding
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Reference software structure
4.1 General
This software has been derived from reference models used in the process of developing of
ISO/IEC 23003-3.
Reference software is normative in the sense that it correctly implements the USAC decoding processes
described in ISO/IEC 23003-3. Complying ISO/IEC 23003-3 implementations are not expected to follow
the algorithms or the programming techniques used by the reference software. Although the decoding
software is considered normative, it cannot add anything to the textual technical description of USAC
included in ISO/IEC 23003-3.
The software contained in this document is divided into several categories:
a) Bitstr
...
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