IEC 60958-3:2006/AMD2:2015
(Amendment)Amendment 2 - Digital audio interface - Part 3: Consumer applications
Amendment 2 - Digital audio interface - Part 3: Consumer applications
Draws attention to some of the more fundamental questions which should be considered by the user before placing an order for a crystal filter for a new application.
Amendement 2 - Interface audionumérique - Partie 3 : Applications grand public
Attire l'attention sur quelques-unes des questions fondamentales que l'utilisateur devrait examiner avant de commander un filtre pour une application nouvelle.
General Information
- Status
- Published
- Publication Date
- 17-Jun-2015
- Technical Committee
- TC 100 - Audio, video and multimedia systems and equipment
- Current Stage
- DELPUB - Deleted Publication
- Start Date
- 02-Sep-2021
- Completion Date
- 26-Oct-2025
Relations
- Effective Date
- 05-Sep-2023
- Effective Date
- 05-Sep-2023
Overview
IEC 60958-3:2006/AMD2:2015 is an important amendment to the international standard defining the digital audio interface for consumer applications. Issued by the International Electrotechnical Commission (IEC), this amendment updates Part 3 of IEC 60958 to address enhanced audio formats and system improvements in digital audio transmission. It incorporates new protocols for transmitting multichannel audio data and adds features to support loudness control, thus ensuring improved audio quality and dynamic range management in consumer devices.
This document is relevant for audio equipment manufacturers, system integrators, and developers involved in designing or deploying consumer digital audio interfaces. The amendment strengthens the standard by aligning channel assignments and audio metadata with modern broadcasting and multimedia requirements.
Key Topics
General Channel Assignment
IEC 60958-3:2006/AMD2:2015 incorporates the use of general channel assignment numbers as specified in IEC 62574:2011. This allows clear identification and management of audio channels for multichannel digital audio systems, supporting up to 32 channel assignments. This enhancement helps in consistent channel mapping across diverse consumer audio devices.Loudness Information Integration
A significant addition is the inclusion of loudness information within the user data bits (U-bit). The amendment defines a standardized format for transmitting loudness metadata to facilitate loudness control and dynamic range compression in consumer audio products, enhancing listening comfort and regulatory compliance. This specification references EBU TECH 3285 for detailed loudness metadata structure.User Data Format and Modes
The amendment extends the existing user data format by adding a "loudness" mode alongside previously defined modes such as latency. This enables devices to interpret and utilize loudness data embedded within the digital audio stream, supporting features like volume normalization and peak level management.Alignment with Multichannel Audio Standards
By aligning with IEC 62574, the amendment ensures interoperability for digital audio interfaces transmitting part or whole multichannel data. It specifies updates to byte 6 and 7 of the channel status format to include general channel assignment information, improving signal integrity and compatibility.
Applications
IEC 60958-3:2006/AMD2:2015 is tailored for consumer electronics and digital audio equipment involving:
- Home theater systems and AV receivers using multichannel digital audio interfaces to deliver surround sound experiences.
- Broadcast and multimedia equipment requiring standardized loudness metadata transmission to comply with broadcast loudness regulations.
- Digital audio players, TVs, and soundbars that implement digital audio input/output supporting enhanced consumer audio protocols.
- Professional audio production devices incorporating consumer-grade digital interfaces for compatibility and quality assurance.
- Software decoding and audio processing applications leveraging loudness and channel assignment metadata to optimize playback experiences.
These practical implementations benefit from improved audio signal management, ensuring consistent quality, listener comfort, and cross-device interoperability.
Related Standards
Understanding IEC 60958-3:2006/AMD2:2015 in context includes familiarity with the following standards:
- IEC 60958-1 - Digital audio interface - Part 1: General requirements, forming the foundational specification for digital audio interfaces.
- IEC 62574:2011 - Audio, video, and multimedia systems - General channel assignment of multichannel audio. This standard defines the assignment numbers referenced in IEC 60958-3 for multichannel audio signals.
- EBU TECH 3285 - Specification of the Broadcast Wave Format (BWF), used as a reference for loudness information formatting and metadata representation.
- Other IEC 60958 parts covering professional and data transmission aspects of digital audio interfaces.
Keywords
Digital audio interface, IEC 60958-3, consumer audio, multichannel audio, loudness control, channel assignment, IEC 62574, EBU TECH 3285, digital audio protocol, audio metadata, digital audio equipment, audio standards.
IEC 60958-3:2006/AMD2:2015 plays a critical role in evolving digital audio consumer interfaces to meet modern multimedia demands with enhanced metadata management and channel assignment precision, ensuring higher fidelity and user-friendly audio experiences.
IEC 60958-3:2006/AMD2:2015 - Amendment 2 - Digital audio interface - Part 3: Consumer applications Released:6/18/2015 Isbn:9782832226803
IEC 60958-3:2006/AMD2:2015 - Amendment 2 - Digital audio interface - Part 3: Consumer applications
Frequently Asked Questions
IEC 60958-3:2006/AMD2:2015 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Amendment 2 - Digital audio interface - Part 3: Consumer applications". This standard covers: Draws attention to some of the more fundamental questions which should be considered by the user before placing an order for a crystal filter for a new application.
Draws attention to some of the more fundamental questions which should be considered by the user before placing an order for a crystal filter for a new application.
IEC 60958-3:2006/AMD2:2015 is classified under the following ICS (International Classification for Standards) categories: 31.140 - Piezoelectric devices; 33.160.01 - Audio, video and audiovisual systems in general. The ICS classification helps identify the subject area and facilitates finding related standards.
IEC 60958-3:2006/AMD2:2015 has the following relationships with other standards: It is inter standard links to IEC 60958-3:2006, IEC 60958-3:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase IEC 60958-3:2006/AMD2:2015 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of IEC standards.
Standards Content (Sample)
IEC 60958-3 ®
Edition 3.0 2015-06
INTERNATIONAL
STANDARD
AMENDMENT 2
Digital audio interface –
Part 3: Consumer applications
IEC 60958-3:2006-05/AMD2:2015-06(en)
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
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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.
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IEC 60958-3 ®
Edition 3.0 2015-06
INTERNATIONAL
STANDARD
AMENDMENT 2
Digital audio interface –
Part 3: Consumer applications
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.160.01 ISBN 978-2-8322-2680-3
– 2 – IEC 60958-3:2006/AMD2:2015
IEC 2015
FOREWORD
This amendment has been prepared by technical area 4: Digital system interfaces and
protocols of IEC technical committee 100: Audio, video and multimedia systems and
equipment.
The text of this amendment is based on the following documents:
FDIS Report on voting
100/2464/FDIS 100/2494/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data relat
...
IEC 60958-3 ®
Edition 3.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Digital audio interface –
Part 3: Consumer applications
Interface audionumérique –
Partie 3: Applications grand public
IEC 60958-3:2006-05/AMD2:2015-06(en-fr)
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.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
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questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
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variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
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IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
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IEC 60958-3 ®
Edition 3.0 2015-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 2
AM ENDEMENT 2
Digital audio interface –
Part 3: Consumer applications
Interface audionumérique –
Partie 3: Applications grand public
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.01 ISBN 978-2-8322-7230-5
– 2 – IEC 60958-3:2006/AMD2:2015
© IEC 2015
FOREWORD
This amendment has been prepared by technical area 4: Digital system interfaces and
protocols of IEC technical committee 100: Audio, video and multimedia systems and
equipment.
This bilingual version (2019-10) corresponds to the monolingual English version, published in
2015-06.
The text of this amendment is based on the following documents:
FDIS Report on voting
100/2464/FDIS 100/2494/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The French version of this standard has not been voted upon.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
INTRODUCTION to Amendment 2
The revision of IEC 60958-3:2006 has become necessary to document the protocol for
transmitting the audio signal and its information in current improved audio formats and
systems.
To apply IEC 60958-3 and its IEC 60958 conformant data format transmitting as part or whole
of the multichannel audio data, a general channel assignment number specified in IEC 62574
is added to the C-bit.
Loudness information is added to the U-bit to enable loudness control.
© IEC 2015
2 Normative references
Insert, in the list of normative references, the following new publication:
IEC 62574:2011, Audio, video and multimedia systems – General channel assignment of
multichannel audio
5.2.2 Mode 0 channel status format for digital audio equipment for consumer use
Table 2 – Mode 0 channel status format for consumer use
Replace the rows of byte 6 and byte 7, by the following rows:
bit 40 41 42 43 44 45 46 47
Information General
6 General channel assignment channel number for A channel
hidden in channel
PCM signal assignment
channel
number for
B channel
bit 48 49 50 51 52 53 54 55
7 General channel assignment channel
number f
...
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