Apr 252011

Industry Group SMPTE Makes Captioning Online Standard Available for Free

Press Release from COAT, 4/13/11

COAT applauds and thanks the Society of Motion Picture and Television Engineers (SMPTE) for making publicly available a standard for captioning interoperability between broadcast TV and broadband video programming. This is an important and well-timed decision by SMPTE to release this openly as rules are pending from the FCC on this form of accessibility. That is, the FCC’s Video Programming Accessibility Advisory Committee (VPAAC) is discussing captioning online as part of the new requirements under the 21st Century Communications & Video Accessibility Act. Section 201 of the 21st CVAA requires the captioning of previously shown TV programs to be passed through when the TV program is re-shown on the Internet.

Available for free on the SMPTE website, their standard — SMPTE ST 2052-1:2010, called Time Text Format (SMPTE-TT) — defines the SMPTE profile of W3C Timed Text Markup Language (TTML) and allows display of captions or subtitles. It identifies the features from TTML required for interoperability between display systems for the format. In order to preserve certain semantic features of the input formats, SMPTE-TT also defines some standard metadata terms to be used, and some extension features not found in TTML.

COAT believes the public sharing of this standard will help lead us to widespread adoption of a standard to ensure ever more captioning of video material found on the Internet. The COAT liaison to SMPTE has been Heather York of VITAC, a leading COAT affiliate. Previously, in April 2009, COAT had written to SMPTE to encourage and urge them to develop such a standard. The standards document is also attached below.

Attachment Size
st2052-1-2010.pdf 128.08 KB

– Thanks to NVRC, Fairfax (4/16/11)