15 October 2013 The Media Annotations Working Group has published a Proposed Recommendation of API for Media Resources 1.0 . This specification defines an API to access metadata information related to media resources on the Web. The overall purpose is to provide developers with a convenient access to metadata information stored in different metadata formats. The API provides means to access the set of metadata properties defined in the Ontology for Media Resources 1.0 specification. These properties are used as a pivot vocabulary in this API. The core of this specification is the definition of API interfaces for retrieving metadata information in synchronous and asynchronous. It also defines interfaces for structured return types along with the specification of the behavior of an API implementation. Comments are welcome through 25 November. Learn more about the Video in the Web Activity .

The Audio Working Group has published three First Public Working Drafts to provide an advanced audio API for the Web: the Web Audio API and MediaStream Processing API specifications each define a different approach to process and synthesize audio streams directly in script. These APIs can be used for interactive applications, games, 3D environments, musical applications, educational applications, and for the purposes of accessibility. They include the ability to synchronize, visualize, or enhance sound information when used in conjunction with graphics APIs. Audio Processing API introduces and compares two client-side APIs for processing and synthesizing real-time audio streams in the browser. Read the blog post Sounding Out the Audio APIs for more information about the possibilities unlocked by an audio API, and learn more about the Rich Web Clients Activity .

The Media Annotations Working Group has published a Last Call Working Draft of API for Media Resources 1.0 . This specification defines an API to access metadata information related to media resources on the Web. The overall purpose is to provide developers with convenient access to metadata information stored in different metadata formats. The API provides means to access the set of metadata properties defined in the Ontology for Media Resources 1.0 specification. Comments are welcome through 07 August. Learn more about the Video in the Web Activity . Learn HTML and CSS with w3Schools XQuery from the Experts: A Guide to the W3C XML Query Language XML Schema: The W3C's Object-Oriented Descriptions for XML