* No standard method for displaying text synchronized with other media.
* Need for a standard Timed Text format synchronized with some other timed media.
Timed Text applications
* Subtitles of movies on the Web (foreign languages)
* Captions for people lacking audio devices or having hearing disabilities
* Karaoke
* Scrolling news, credits rolls
* TickerTape, marquee, "crawls"
* Text overlay
* TelePrompter
SMIL Interoperability
* Good interoperability on synchronization level
* Not so good interoperability for media
o Text: Plain
Why a Standardized Timed-text Format?
On the Web, there is no standard method for displaying text which is synchronized with other elements, such as video and audio. The three most popular multimedia players-- Apple's QuickTime Player, Microsoft's Windows Media Player and RealNetworks' RealPlayer-- support only their own proprietary text formats (QText, SAMI and RealText, respectively). As a result, multimedia authors must write synchronized text files in multiple formats if they wish to support more than one player. A standardized timed-text format
W3C has announced the creation of a new Timed Text Working Group (TTWG) as part of the Synchronized Multimedia Activity (SYMM). The mission of the Timed Text Working Group is to develop an XML based format used for the representation of streamable text synchronized with some other timed media, like audio and video. Working Group members envision that the Timed Text specification will cover "all necessary aspects of timed text on the Web. Typical applications of timed text are the real time subtitling of foreign-language movies on the Web, captioning for