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January-February 2017
NEWS & VIEWS
Support for TV service delivery over IP networks is another focus area for DVB
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as Dolby Atmos .
What , then , should be indispensable for NGA ? Immersive audio , personalised audio , advanced loudness management , dialogue enhancement for the hearing impaired , and audio frames synchronised with video frames , listed Craig Todd , senior VP and CTO , Dolby Laboratories .
Another focus area for DVB is support for TV service delivery over IP networks , as highlighted by last November ’ s approval of the commercial requirements for adaptive bitrate ( ABR ) streaming for live applications ’ multicast techniques over IP networks .
“ ABR enables users to receive the best possible service using the capacity available on their network connection and the capabilities of their home equipment ,” said DVB ’ s Mills .
IP is coming round for the broadcast industry ; there is no way around it , predicted Willem Vermost , network IP media technology architect at the EBU .
Embrace IP , Vermost urged participants , as he highlighted the number of boxes that IP is already ticking , including the flexibility to be standards-agnostic , as well as the scalability to adjust on-the-fly for both small and big productions .
A number of high-profile proofs-of-concept would appear to lend more credence to Vermost ’ s claims , including one involving the EBU and Belgian public broadcaster VRT .
The VRT-EBU LiveIP Project was set up to build and operate a live TV production studio with stateof-the-art IP-based and IT-centric hardware and software .
Thus far , a simpler cable and physical set-up has been realised , with the deployment of SDI devices with IP ports to support existing workflows . The latency required has also not been perceived any differently from SDI , Vermost reported , while reiterating : “ This is not about replacing SDI with IP . The current industry status is to replace up to HD-SDI with
DVB Asia 2016 generated plenty of lively debates and discussion among participants , over topics such as 4K / Ultra HD , IP and VR , among others .
tunnelling over IP .”
The roadmap to IP interoperability is also one of evolution rather than revolution , he added , although this should be given a shot in the arm when the SMPTE ST 2110 standard is ratified , possibly in time for 2017 NAB Show , Vermost concluded .
Also in the pipeline is a new video coding standard , H . 266 , that will potentially offer 28 % more bitrate savings than the High Efficiency Video Codec ( HEVC )/ H . 265 standard , revealed Benjamin Bross , project manager , image processing department , Heinrich Hertz Institute .
Predicting the new video coding standard to be available by 2021 , he paid homage to the work done in developing video coding techniques beyond HEVC / H . 265 by organisations such as the Joint Video Exploration Team ( JVET ), which was established in October 2015 .
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