Report of the meeting of the SC-07-01 Working group on Audio Metadata held in New York, New York, 2018-10-20.
The meeting was convened by Chair Tormod Værvågen and Vice Chair David Ackerman.
Attendees were O Stuan, S Silva, E Nilsson, C Van Winkle, D Ackerman, P Treleaven, E Grubbs, T Værvågen, R Cabot, P Jessop, K Ishida, N Fujimoto, B Gordon, A Kuzub, K Lyver, U Henry* (* denotes by electronic link).
Minutes of previous meeting in Milan, 2018-05-24 were approved.
AES31-4-R Review of AES31-4-2015: AES standard for network and file transport of audio - XML Implementation of Audio Decision Lists
Scope: This document specifies the mapping between EDML elements, described in AES31-3, and their XML counterparts described in the included schema. The complete schema is included along with an XSLT document which provides a reference transform back to EDML for backwards compatibility.
AES31-4-2015 published, 2016-02-08 – No further comments
AES57-R Review of AES57-2011, AES standard for audio metadata - audio object structures for preservation and restoration
Scope: To collect information on all metadata issues pertaining to digital audio objects and all aspects of the digital documentation of digital audio objects. This scope includes field structures to describe and provide access to the audio content contained in digital files. It includes transfer, preservation and restoration information.
AES57-2011 reaffirmed 2017 - No further comments
AES60-R Review of AES60-2011, AES standard for audio metadata - Core audio metadata
Status: Revise to harmonize with EBU T3293 V1.9
Work has started to harmonize AES60 to version 1.9 of EBU Core
After securing the description of the new EBU audio model, the Working Group is now confident that the schema is strict enough to be published. Also the ADM itself had some changes during the last year.
EBU Core is defined by a normative xml schema, with a guidance document. Same situation with AES57, and the way this was done was explained.
There was consensus that this can work also for AES60, and the work preparing for a publication will continue.
Development Projects:
AES-X098C Administrative metadata for audio objects - Process history schema
Scope: To collect information on all metadata issues pertaining to digital audio objects and all aspects of the digital documentation of digital audio objects. This scope includes field structures to describe and provide access to the audio content contained in digital files. It includes transfer, preservation and restoration information.
The standard has some overlap with other descriptive metadata standards, and the chair T. Værvågen will together with Egil Eide Ording propose to model X098C as an extension of AES 60/EBU core/EBU CCDM. EBU CCDM, and a draft the extension was presented.
The work will continue.
AES-X114 AES standard for audio metadata
Scope: To study and report on the methods and techniques for attaching and implementing metadata through all aspects of interfacing real-time and file-transfer audio, including, where related to audio, other metadata related to other media. The scope includes metadata for professional recording, sound reinforcement, production, broadcasting, and transmission as well as the exchange of metadata and associated audio among different organizations. It also includes the development of techniques, such as UML, to aid the description of the relationships and flow of metadata requirements in an open and recognised way.
Status: Closed, this activity is covered by other activities
AES-X155 AES standard for audio metadata - Production recording metadata set (iXML)
Scope: This document specifies a format for communicating file- and project-based production metadata between various stages of production and post production workflow. It may also have utility in other areas. The format, iXML, uses the XML standard for communication of tagged metadata. The XML-formatted metadata may be written to a data chunk inside a Broadcast Wave file, such as AES31-2, or some other suitable file type. iXML standardises the interchange of production information and provides an extensible framework to add new private or public data as needs develop, while permitting the specification to be expanded in a consistent and compatible manner.
Deferred to 2019 to await harmonization with updated AES60.
AES-X224 Best Practices for the Management of Embedded Metadata in Audio Files
Scope: To create a guide for manufacturers of audio hardware, software and computer platforms describing best practices for the management of metadata embedded in audio files.
No progress since last meeting, still looking for the people that can do this. Discussed again during the meeting, and the people present still believe it is important. The chair will try to form a task group to take this on.
Liaisons:
No further liaisons to discuss.
New Projects:
No new projects.
New business:
No new business
The next meeting will be scheduled in conjunction with the AES 146th Convention, to be held March 2019 in Dublin, Ireland.
