Synchronized Subtitles in Live Television Programmes

In recent years, a substantial increase in the demand for multimedia products has taken place, an increase that is being met by prerecorded or live multimedia programmes offered by broadcasters, IPTV or the Internet. At the same time, in the coming years, an increase is expected in the number of adults in Europe with problems accessing digital television, as has been highlighted by the DTV4All project (Looms 2009). For this part of the population, subtitles are needed to access the audio content of TV programmes and to ensure the compliance of broadcasters with regulatory standards currently in place worldwide (Romero-Fresco 2011).