There are a lot of videos looking into the details of uncompressed video over IP, but not many for those still starting out – and let’s face it, there are a lot of people who are only just embarking on this journey. Here, Andy Jones takes us through the real basics do prove very useful as a building block for understanding today’s IP technologies.
Andy Jones is well known by many broadcast engineers in the UK having spent many many years working in The BBC’s Training and Development department and subsequently running training for the IABM. The news that he passed away on Saturday is very saddening and I’m posting this video in recognition of the immense amount he has contributed to the industry through his years of tireless work. You can see from this video from NAB 2018 his passion, energy and ability to make complicated things simple.
In this talk, Andy looks at the different layers that networks operate on, including the physical layer i.e. the cables. This is because the different ways in which traffic gets from A to B in networking are interdependent and need to be considered as such. He looks at an example network which shows all the different standards in use in an IP network and talks about their relevance.
Andy briefly looks at IP addresses and the protocol that makes them work. This underpins much of what happens on most networks before looking at the Real-time Transport Protocol (RTP) which is heavily used for sending audio and video streams.
After looking at how timing is done in IP (as opposed to black and burst) he has laid enough foundations to look at SMPTE ST 2110 – the suite of standards which show how different media (essences) are sent in networks delivering uncompressed streams. AES67 for the audio is also looked at before how to control the whole kit and caboodle.
With all the talk of the SMPTE ST 2110 standards suite, it’s sometimes forgotten that it only deals with content. If you want a working system, you’ll need to do a few more things – find new devices on the network, work out what they can do, control them, guarantee the bandwidth and often deal with metadata that arrives separately like tallies.
This is what the AMWA NMOS specifications do. Peter Brightwell and Thomas Edwards have been heavily involved in creating them and in this video lead us through what each one does and how they are used.
A meeting of experienced minds here at the Pittsburgh SMPTE section talking about the opportunities and challenges of ST-2110. Phil Myers from Lawo talks optimistically about the challenges that can and often have been solved in implementing 2110 whether that be network infrastructure or timing, giving a good primer on the whole topic as he starts the session.
Hugo Gaggioni from Sony, talks about NMOS, explaining what AMWA does and the difference between their IS-04,05 and 06 specifications.
Karl Kuhn from Tektronix then discusses packet pacing, PTP and network architectures. He then looks at how to monitor PTP and see it is working well.
With the panel session at the end, joined by Dan Turk from NEP, there is a free-ranging discussion covering some of the following topics:
Control of IP networks
The limits of IP
True non-blocking switches
Break-even points of IP systems
Split essences & dropping blanking
Network planning for UHD
Handling loss of network on PTP implementations
plus much more!
Andy Rayner from Nevion looks at using SMPTE ST 2110 on a Wide Area Network (WAN).
While using ST 2110 is a much discussed topic in the studio or within a building, there are extra difficulties in putting it between buildings, cities and countries with some saying it shouldn’t even be done. Here, Andy examines how you can do it whilst acknowledging the industry still has some decisions to make.
The BBC’s Mark Patrick talks about the BBC’s move not only of their Welsh HQ but of their move from SDI to IP. Covering the reasons for the move, the architectures they are implementing and how they are mitigating the risks, this is a great real-world example of implementing SMPTE ST 2110.
From IBC’s IP Showcase, Mark explains the interoperability work they are doing and critically how they have approached testing. In large systems and with IT-based systems Mark explains it’s imperative to have repeatable, structured and where possible automated acceptance testing which is a big change in the way we do things in the industry.
Mark also covers training, audio issues, timing incompatibilities and control of the system with NMOS to round off a great, pragmatic overview of this ST 2110 project.
Learn what the SMPTE 2110 standards are and how they affect the future of professional media over IP networks with our speakers David Atkins and Ed Calverley. Now at a bigger venue, David and Ed will highlight areas that need further work and possible approaches that could taken to further advance progress. As a pioneer in IP-based production, Suitcase TV will share its ongoing experiences, both good and bad, of using IP with broadcast signals and look at why it is worth the pain.
What has changed in the past 12 months?
What new opportunities can we as an industry take from the standards?
What new developments are now possible?
Ample time will be available for discussion so bring your experiences, questions and answers.
Date: 13th March 2018, 18:00 for ample refreshments 18:30 start. 20:45 close.
Location: Ipswich Waterfront Innovation Centre (IWIC), The Atrium, University of Suffolk, 19 Neptune Quay, IPSWICH, IP1 1QJ Travel: From London Liverpool Street, there are multiple trains every hour. 16:40 departure is recommended to arrive at IWIC by 6pm. Full Travel info
Date:Thursday, November 16, 2017 – 18:00 to 20:30 Location: Universisty of Surrey, Wates House, GU2 7XH,Guildford Map
Peter Stevens (BBC R&D) will cover AES67 and its background development within AES and how it is connected as a audio elements within SMPTE 2110. The basic operational principles of AES67 will be described in relation to its various technology components and history of audio over IP. It will conclude with a brief look at the plugfests that have taken place, along with some examples of use within broadcasting.
There is be an introduction by Tony Orme (Uni of Surrey) covering the structure of ST 2110 and its relationship with ST 2057 PTP and discovery etc. like NMOS and how it differs fundamentally from ST 2022-6 and SDI with embeded audio.