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As online video comes of age, it must match legacy broadcast services for traditional features such as consistent access to subtitles. This will be a focus of separate demonstrations at IBC 2015 from the EBU (European Broadcasting Union) and Institut für Rundfunktechnik GmbH (IRT), the research arm of German broadcasters ARD, ZDF and DLR, along with Austria’s ORF and Swiss public broadcaster SRG / SSR.
Spectrum scarcity is giving TV channels and broadcast operators a real challenge to introduce 4K services for terrestrial television. Combining scalable coding with HEVC and hybrid broadcast/broadband distribution is an answer. In this solution, HDTV transmissions on DTT remains unchanged and an enhancement layer is sent over the internet to allow the TV set or the set top box to decode and display the 4K picture.
