ISO/IEC 23003-5:2020

Information technology — MPEG audio technologies — Part 5: Uncompressed audio in MPEG-4 file format

This document defines how uncompressed audio is carried in files in the family of standards based on the ISO base media file format. This includes mono, stereo and multi-channel audio in Linear Pulse Code Modulation (LPCM) format with various word lengths and sampling rates, and also floating point format. Such representations also occur in other container formats, such as RIFF WAV or AIFF.

Titre manque — Partie 5: Titre manque

General Information

• Status: Published
• Publication Date: 26-Jan-2020
• ICS: 35.040.40 - Coding of audio, video, multimedia and hypermedia information
• Technical Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Drafting Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Current Stage: 6060 - International Standard published
• Start Date: 27-Jan-2020
• Due Date: 15-Jul-2020
• Completion Date: 27-Jan-2020

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 23003-5
First edition
2020-01
Information technology — MPEG
audio technologies —
Part 5:
Uncompressed audio in MPEG-4 file
format
Reference number
ISO/IEC 23003-5:2020(E)
©
ISO/IEC 2020

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ISO/IEC 23003-5:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2020
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO/IEC 2020 – All rights reserved

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ISO/IEC 23003-5:2020(E)

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Technical overview . 1
5 Uncompressed audio support. 2
5.1 PCM configuration. 2
5.1.1 Definition . 2
5.1.2 Syntax . 2
5.1.3 Semantics . 2
Bibliography . 3
© ISO/IEC 2020 – All rights reserved iii

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ISO/IEC 23003-5:2020(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
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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).
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 http:// patents .iec .ch).
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