W3C 
The W3C Audio Working Group is chartered to develop specifications which define a client-side script API adding more advanced audio capabilities than are currently offered by audio elements. The API will support the features required by advanced interactive applications including the ability to process and synthesize audio streams directly in script.
The HTML5 specification introduces the <audio>
and <video> media elements, including an API
to play back prerecorded audio and video files and to get
limited information about the media, such as duration. The Audio
Working Group will build upon and expand that basic
functionality.
This group works in public, with details in the WG's Work Mode document and the WG's Wiki.
A detailed list of this group's publications and their status will be available in one of the W3C's CVS or Mercurial systems.
The W3C Team Contacts for the Audio Working Group are Doug Schepers and Thierry Michel.
The Co-Chairs of the Working Group are Al MacDonald and Olivier Théreaux.
15 December 2011
The Audio WG has published two First Public Working Drafts for two different proposals:
Another First Public Working Draft introduces the two different proposals:
25 March 2011
W3C today launches the Audio
Working Group, whose chartered
mission is to develop a client-side script API adding more
advanced audio capabilities than are currently offered by
audio elements. The API will support the features required
by advanced interactive applications including the ability
to process and synthesize audio streams directly in
script, and will extend the HTML5 <audio>
and <video> media elements. Learn more
about the Rich Web
Client Activity.