Optical Transport Networking (OTN) is a telco-grade technology which simplifies the transport of high-bandwidth data such as uncompressed video. Taking the place of SDH and Ethernet, OTN is an ITU-created recommendation called G.709 which dates back to 2009. With OTN, transport and decoding of multiple signals are simplified with the ability to carry many different data types including SDH and Ethernet.
Telstra’s Steven Dargham joins the VSF’s summer sessions to explain why Telstra has created an international network for live broadcast production based on OTN and to discusses some case studies. Using SMPTE ST 2110-20 and -22, Telstra as seen that remote production can be done without so much equipment at the game.
Steven takes some time to outline the Latency-Bandwidth-Quality triangle where one of these will always suffer at the expense of another or both the others. Understanding this balance and compromise leads to understanding the choice of video codec to use such as TICO, VC-2, JPEG XS etc. Steve talks through a table showing the pros and cons of the codecs available to chose from.
The video ends with Steven talking us through case studies on moving Telco between Japan and UK, their work for the IAAF Athletics using these to explain why they are able to keep AWS ingo.
Like all good ideas, remote production is certainly not new. Known in the US as REMIs (REmote INtegrations) and in Europe as Remote Productions, producing live events without sending people there has long been seen as something to which most broadcasters have aspired. We’re now at a tipping point of available techniques, codecs and bandwidth which is making large-scale remote production practical and, indeed, common.
Carl Petch took to the podium at the IBC 2019 IP Showcase to explain how telco Telstra have been deploying remote production solutions by looking at three case studies including the Pyeongchang 2018 Winter Olympics, and the technology behind them. Highlighting TICO, SMPTE ST 2022-6 uncompressed and VC-2 compression, previously known as the BBC’s DIRAC, we see how codecs are vital in underpinning successful, low latency, remote production.
Encoding and decoding delay aren’t the only delays to consider, simple propagation time for the signal to travel from one place on the earth to another have to be considered – including the lengths of your different paths – so Carl takes us through a table of real-world measurements between a range of places showing up to 280ms one-way delay.
Much of the success Telstra has had in delivering these solutions has been anchored on their dedicated remote production network based on the Open Transport Network principles which allows them to carve up parts of their bandwidth for different protocols which Carl covers in some detail and allows them to scale in 100Gb increments.
This technical presentation from Carl Petch of Telstra Broadcast Services looks at some of the reasons why broadcast providers are moving to virtualization, and what the benefits are of applying virtualization to broadcast workflows. Carl explains the vendors they used, the way they architected their solution and some lessons learnt!
Principal Solutions Architect
Telstra Broadcast Services
Subscribe to get daily updates
Views and opinions expressed on this website are those of the author(s) and do not necessarily reflect those of SMPTE or SMPTE Members.
This website is presented for informational purposes only. Any reference to specific companies, products or services does not represent promotion, recommendation, or endorsement by SMPTE