AES67 is a method of sending audio over IP which was standardised by the Audio Engineering Society as a way of sending uncompressed video over networks between equipment. It’s become widespread and is part of SMPTE’s professional essences-over-IP standards suite, ST 2110.
Here, Conrad Bebbington gives us an introduction to AES67 explaining why AES67 exists and what it tries to achieve. Conrad then goes on to look at interoperability with other competing standards like Dante. After going into some implementation details, importantly, the video then looks the ‘Session Description Protocol’, SDP, and ‘Session Initialisation Protocol’, SIP which are important parts of how AES67 works.
Other topics covered are:
Packetisation – how much audio is in a packet, number of channels etc.
Synchronisation – using PTP
What are SDP and SIP and how are they used
Use of IGMP multicast
Implementation availability in open source software
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!
We’re all starting to get the hang of the basics: that PTP is the new Black and Burst, that we still need sync to make studios work and that PTP (IEEE1588) is standardised under ST 2059 for use in the broadcast industry. So given its importance, how can we make it redundant?
Thomas Kernen from Mellanox and Chair within the STMPE standards community takes about his real-lift work on implementing PTP with an eye on redundancy methods
Zhou Wang explains how to compare HEVC & AVC with AV1 and shares his findings. Using various metrics such as VMAF, PSNR and SSIMPlus he explores the affects of resolution on bitrate savings and then turns his gaze to computation complexity.
This talk was given at the Mile High Video conference in Denver CO, 2018.
AV1 implementations are still being worked on along a number of fronts and the business cases are starting to shake out. Here’s a developer-focussed look at AV1 from patents to the way it works and to lessons learnt implementing it.
It was last year that the Alliance for Open Media released its next-generation video codec AV1. It achieves better compression than proprietary competitors, while its patents can be licensed via a royalty-free, open-source friendly license. With a broad array of industry support including all major browser vendors, many hardware partners, internet streaming video and conferencing providers, many think this is the best chance yet to create a successful video codec of its type that achieves wide deployment.
This on-demand webinar brings together Nighel Walley from Decipher, Paul Gagnon from IHS Markt, to talk all things CES with David Mercer from Strategy Analytics and Justin Lebbon from Mediatel events.
CES is used as a barometer of things to come and things that are on the way out and has a strong link into parts of the broadcast industry. At the end of the day, people change and technology changes; whatever your company, if you don’t change to suit, then you’ll be out of business.
So what’s hot and what’s off the boil this year? Find out as they cover 5G, 4K, AI, Screen tech and much more.
It’s not easy doing a complete STB roll-out so it’s great that Com Hem have brought together 3 Screen Solutions, Technicolor and Verimatrix to explain how they rolled out the first hybrid Android TV Operator Tier STV from Com Hem. Joining John Moulding from Videonet the session talks about:
Following on from last week’s post part II is here. Wes Simpson looks at use of IP in Remote Production/Remote Integration (REMI) and finished with a panel discussion including Newtek and Grass Valley, a Belden brand.
This video talks about:
Why Broadcasters need networking?
Typical Live remote sports broadcast roles
Overview of video & audio Signal types
HDR & Wide Colour Gamut (WCG)
Data (metadata, scripts etc)
REMI – Remote Integration, AKA ‘Remote Production’ in Europe.
Overview of what tasks can be done at base, what still needs to be done ‘on-site’
“If she can see it, she can be it,” is the catch phrase of the Geena Davis Institute on Gender in Media. The issue being if she’s not seeing it, it’s almost impossible to convince a young woman that a career in STEM is even fathomable.
For us in the broadcast industry, it’s clear there is a lot to do and this is work that needs to be done at all ages. Please, take it upon yourself do to something this year, however small, to address the gender imbalance in broadcast.
A recent study related to me by a science teach fresh back from a conference found that if girls hadn’t become interested in science by the age of 6, then when they come to choose their exam choices at 14 and beyond, they were vastly less likely to choose STEM topics. However, many are interested yet put off by all sorts of factors later on – many of which can be addressed.
When women feature in film and TV, this directly influences real people. The Hunger Games’s Katniss Everdeen was “the major cause of waiting lists for archery lessons from coast to coast.” a few years ago. In 2018 a study was released on ‘The Scully Effect’, about the real world effect of Dana Scully from The X-Files: Of the women surveyed, “63% say Scully increased their confidence that they could excel in a male-dominated profession.”
In this talk at the SMPTE ATC, Krystle Penhall, takes us through these studies, examines the problems in STEM today and how IBM and the aerospace industry have tried to counteract the problems they face.
Using microservices is a way of architecting your software platform to be nimble, simple and is just as applicable to on-premise platforms as cloud. As scaling is important for OTT providers, it’s not surprising that much work is being done in the OTT sector to utilise microservice architectures.
Even companies that are not yet actively operating on a microservices architecture are looking for vendors who at least have a strategy to cater to it for the future. This session will examine the core benefits (including redundancy, dev ops, scalability, and self-healing), the different approaches (including containerisation and orchestration via Docker, Kubernetes, and Mesos, as well as native microservices models like Erlang), and the complexities of migrating a generic architecture to a microservices architecture.
This panel covers:
Why is OTT so suited to microservices?
How microservices enable companies to be flexible to changing customer demands