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Chapter 2. iTV Scenarios > Interactive Educational Programming

2.7. Interactive Educational Programming

2.7.1. Interactive Documentaries

As the viewer watches the documentary video, two small semi-transparent icons appear entitled language and animation indicating that an alternative language audio is available, and that an animation (or simulation) of the topic is available. It is possible that the two icons are presented at different times.

On selection of the language icon the viewer is presented with a list of languages for which alternative audio tracks are available; a single audio track is expected to be active at any point in time. The video continues playing in the background during the presentation of the language menu and the subsequent selection. The audio track is switched at the exact location that corresponds to the switching time. Subsequently, the language icon should not reappear until the end of the audio track and the subsequent recurring availability.


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