Pilot-B Presentation and Deliverables 2014 & 2015
Pilot-B public Deliverables 2014 and 2015
Pilot-B Presentation, Objectives and HbbTV 2.0 advancements
Given EU citizen mobility, TV content is not only seen by nationals, but also by large communities living away from home. There is also a need to broadcast the same content in different languages synchronically (e.g., Swiss TV or Brussels TV) but the content is not the same across languages. Especially for hearing-impaired people the dialog intelligibility of TV audio signals is a key criterion. Also people with vision disabilities can be supported by an additional audio channel, containing a description of the action mixed with the dialogue.
– Pilot-B objectives
The four core objectives of this sub-pilot respond to the above chances and challenges which will be tackled in large scale trials in Germany and Spain.
1- To deliver a personalized Clean Audio signal with the regular TV program to enhance the dialog intelligibility of TV audio signals for hearing-impaired people.
2- To provide Audio Description (containing a description of the action mixed with the dialogue) to support people with vision disabilities.
3- To provide additional audio streams to TV programs in different languages to support EU citizens / communities living away from home and / or support language learning.
4- Our vision is to provide such additional audio signals via broadband, in addition to the TV programs on broadcast, on the basis of HbbTV, but also other distribution platforms are targeted.
– Pilot-B & HBBTV 2.0
Whereas it is principally possible to add multiple audio streams to a digital TV-service (as part of the DVB service), it is currently not possible to provide additional audio streams via broadband Internet and synchronise them with the TV program.
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HbbTV 1.0 and 1.5
As part of the Clean Audio (CA) service it is planned to offer CA signals in various qualities, from which a single one can be selected by an end-user. It is foreseen to realize an MPEG-DASH based prototype for providing a bouquet of CA signals with the TV program as part of a proof of concept implementation.
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HBBTV 2.0
For all planned alternative audio services, in case an Internet (IP) based delivery is to be realized, accurate synchronisation of the respective audio channel with the broadcast TV program is crucial. HBB4ALL partners are highly interested in using the Internet as a distribution channel for additional audio services, sidestepping spectrum limitations. A prototype implementing this, based on multistream synchronisation, is planned within the project to show the large opportunities specifically for additional audio access services by means of HbbTV 2.0. The audio access services planned will included also Audio Description and multiple languages in addition to Clean Audio.