Category Archives: Accessibility

Dialog+ – End user tests

The improvement of speech intelligibility for broadcasting content has been an important aspect of IRT’s work for many years. Dialog+ is the name of an additional service with enhanced speech intelligibility that promises to at least improve the current situation. To ensure that these developments are not only valid in a lab context, but also …

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Testing a VR subtitle production prototype

In our earlier post on accessibility services in 360° environments (here) we have described how these services can enhance user experiences and make 360° videos more accessible. In the EU-funded Immersive Accessibility project ImAc subtitles are extended with guiding cues to support easier speaker identification within the 360° space to enhance the user experience and …

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Audio Description via bone conduction headphones using HbbTV2

People with visual impairments often need audio description when watching TV in order to understand what is happening visually. This can be problematic in certain group settings, where it is not possible to enable audio description e.g. public viewing events. In a group setting, as of now, everybody listens to the same broadcast sound together …

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Alternative audio tracks in ARD Player

We’ve recently teamed up with colleagues from SWR.Online to implement alternative audio tracks in the “ARD Player” for mobile and desktop Internet browsers. This allows ARD broadcasters now to distribute alternative audio versions in addition to the default mix in an efficient manner without extra bandwidth usage. Such alternatives can be for example a “Dialog+” …

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Accessible 360° video – ImAc solutions are ready for public testing

In the Immersive Accessibility (ImAc) project IRT investigates, together with partners from the media industry, how 360° media can be made accessible for all. During the project, a technical platform has been developed to enable accessible 360° media: enrich, distribute and playback 360° video content with fully customisable accessibility services. To this end, the project …

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Brain-Computer-Interfaces for controlling media-content in the web

Subtitles and audio descriptions are used to make the content of audio-visual media accessible to people with visual or hearing impairments. However, for people with severe motor impairment the obstacle usually lies ahead, in the user interfaces that should give access and control over the media content.With this project IRT wants to think outside the …

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“Inter-Device Synchronization” using HbbTV2

The “inter-device synchronization” feature of the HbbTV2 standard allows the playback of IP AV streams on a mobile device in lip-sync with the broadcast TV image on the TV. One of the most important use cases for this is the provision of additional audio versions via mobiles and headphones, e.g. for use in a family …

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