D2.3 Interim Report on Pilot Services - the School of Engineering ...
D2.3 Interim Report on Pilot Services - the School of Engineering ...
D2.3 Interim Report on Pilot Services - the School of Engineering ...
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8 Appendix 1 Design document for DR live subtitlesSummaryThis proposal covers <strong>the</strong> experimental design <strong>of</strong> <strong>on</strong>e <strong>of</strong> a number <strong>of</strong> user studies beingc<strong>on</strong>ducted as part <strong>of</strong> <strong>the</strong> EC funded project DTV4All to improve <strong>the</strong> accessibility <strong>of</strong>televisi<strong>on</strong> through assistive technologies <strong>on</strong> digital televisi<strong>on</strong>.The focus <strong>of</strong> this study is <strong>on</strong> quality issues to do with live subtitles for <strong>the</strong> deaf and hard<strong>of</strong> hearing.The aim is to identify <strong>the</strong> frequency with which viewers with known hearingimpairments react adversely to semantic errors, problems caused by presentati<strong>on</strong>differences between live and pre-recorded subtitles and <strong>the</strong> problems caused by delaybetween <strong>the</strong> programming and SDH subtitles.It also aims to identify <strong>the</strong> perceived importance <strong>of</strong> <strong>the</strong>se three categories <strong>of</strong> problems,ranging from ”cosmetic blemish” to ”show stopper”.The results will be feed into reports to help European broadcasters with strategicplanning for pre-recorded and live subtitling. Fur<strong>the</strong>r studies c<strong>on</strong>ducted by DTV4Allbetween now and 2010 will address related issues to do with <strong>the</strong> accessibility <strong>of</strong> AudioDescripti<strong>on</strong> and signing.Live subtitles for <strong>the</strong> deaf and hard <strong>of</strong> hearing (S) - <strong>the</strong> researchproblemTelevisi<strong>on</strong> programmes are increasingly broadcast with subtitles not just for interlingualcommunicati<strong>on</strong>, translating <strong>on</strong>e language to ano<strong>the</strong>r, but also for intra-lingualcommunicati<strong>on</strong> to improve <strong>the</strong> accessibility <strong>of</strong> <strong>the</strong> soundtrack for those with hearingimpairments (SDH).In a number <strong>of</strong> European countries <strong>the</strong> trend is towards 100% SDH subtitling <strong>of</strong>televisi<strong>on</strong> programmes.Providing live subtitling is a challenging matter. It ei<strong>the</strong>r requires a set-up like that atTV3 Catal<strong>on</strong>ia where a team <strong>of</strong> up to six subtitlers take turns to manually key-in smallchunks <strong>of</strong> <strong>the</strong> required subtitles, or <strong>the</strong> subtitler listens to <strong>the</strong> programme and dictates<strong>the</strong> subtitles into a speech-to-text system (“re-speaking”). Regardless <strong>of</strong> how <strong>the</strong>subtitles are produced, <strong>the</strong>re is a delay in relati<strong>on</strong> to <strong>the</strong> programme <strong>of</strong> six to tensec<strong>on</strong>ds. In The Ne<strong>the</strong>rlands, public service broadcasters introduce a delay in liveprogramming <strong>on</strong> cable <strong>of</strong> 10 sec<strong>on</strong>ds, allowing for <strong>the</strong> subtitles to be shown in synchwith <strong>the</strong> c<strong>on</strong>tent.There are several problems with live subtitling: <strong>the</strong> quality <strong>of</strong> <strong>the</strong> subtitles <strong>the</strong>mselves,<strong>the</strong> way <strong>the</strong>y are displayed <strong>on</strong> screen and <strong>the</strong> delay in showing <strong>the</strong> subtitles in relati<strong>on</strong> to<strong>the</strong> video and audio to which <strong>the</strong>y refer.Page 33
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