AES67-2015 Revision Confirms Stability of the Audio Network Interoperability Standard

October 20 2015, 03:00
Media Networking Alliance
Technical Chairman Kevin Gross
A maintenance revision to AES67-2013 – the AES standard for high-performance streaming audio-over-IP interoperability – has been issued. The revision, called AES67-2015, clarifies some of the interoperability requirements, based on general implementation and “plugfest” experience.

The possibility to incorporate these revisions was identified during the AES ‘Plugfest’ 1 testing, carried out in cooperation with the European Broadcast Union (EBU), in October last year, and held at the Institut für Rundfunktechnik (IRT), in Munich, Germany. During these tests ten companies tested 16 currently available networked-audio products with AES67-specific extensions against each other to confirm interoperability.

The participating manufacturers were ALC NetworX GmbH, Archwave AG, Axia Audio, Digigram SA, DirectOut GmbH, Georg Neumann GmbH, Lawo AG, Merging Technologies S.A., SOUND4 and Telos Systems Inc., and technical personnel from IRT, Swedish Radio and the BBC assisted in the tests and observed the outcomes on behalf of the EBU. The tests were a resounding success, and proved the proposed functionality of AES67 to be both real and robust.

Commenting for the Media Networking Alliance, the industry alliance established to promote awareness and uptake of AES67, Technical Chairman Kevin Gross, stated: “The limited scope of these revisions is testimony to the robust and stable nature of AES67 as originally published and successfully implemented by numerous audio manufacturers. As proven in the plugfest testing, AES67 functional compatibility performs as described and these revisions further complement that functionality.”

AES67-2015 includes updated references to RFC 7273 and clarifications in 6.3, 8.1, and 8.5 –

1 AES-R12-2014, “Standards project report - AES67 Interoperability PlugFest - Munich 2014”
Audio Engineering Society, New York, NY., US.

About the Media Networking Alliance (MNA)
The MNA is a not-for-profit corporation with membership available to all manufacturers, organizations, companies and individuals who are interested in the objectives and purposes of the alliance.
The MNA’s objectives are:
•    to promote the adoption and standardization of AES67 as an audio interoperability standard through marketing and education.
•    to develop future AES67 specifications and other documents that augment, enhance or extend the primary AES67 specification for the purposes of enabling and promoting increased interoperability and reliability.
•    to provide developer support for AES67 products, and actively support those members producing AES67 compliant products, including, but not limited to, AES67 System Development Kit and AES67 Test Tools.
•    to provide a forum and environment in which members of the alliance can meet to review standards development and compliance programs, and to foster the development of new products based on the AES67 standard.
•    to educate the business and end-user communities about the value, benefits and applications for AES67.
•    establish and maintain relationships with educational institutions and other technology associations and organizations that help to promote the use and development of AES67 products.
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