DVB

Webinar: Tools for DASH Streaming

Posted on by Russell Trafford-Jones

MPEG DASH is a standardised, widely-supported protocol for networked streaming – but how can you spot problems and tell if you or another vendor have implemented it right?

This webinar, run by HbbTV – an initiative aimed at merging over-the-air broadcast with broadband delivery (which includes both file-download and streaming) – sets out to explain how you can test your DASH streaming using new tools now available. For instance, HbbTV and DVB have collaborated on a DASH validation tool which checks MPDs, segments and more to be sure that a stream is compliant with both DVB and HbbTV specifications.

Bringing together the experience of Bob Campbell from Eurofins, Waqar Zia from Nomor Research and Juha Joki from Sofia Digital, anyone who develops for, or provides services based on DASH will benefit from this webinar.

Date: 18th June 2019, 16:00 BST / 17:00 CEST

Register now!

Speakers

Bob Campbell Bob Campbell
Directory of Engineering,
Eurofins Digital Testing
Juha Joki Juha Joki
Director, Broadcast & Testing
Sofia Digital
Waqar Zia Waqar Zia
Head of Multimedia Delivery,
Nomor Research GmbH

Webinar: Next Generation Audio & DVB

Posted on by Russell Trafford-Jones

Webinar Date: 18th March 2019
Time: 14:00 GMT / 15:00 CET

Object oriented audio is a relatively new audio technique which doesn’t simply send audio as one track or two, but it sends individual audio objects – simplistically we can think of these as audio samples – which also come with some position information.

With non-object-orientated audio, there is very little a speaker system can do to adjust the audio to match. It was either created for 8 speakers, 6, or 2 etc. So if you have a system that only has 4 speakers or they are in unusual places, it’s a compromise to it sound right.

Object oriented audio sends the position information for some of the audio which means that the decoder can work out how much of the sound to put in each speaker to best represent that sound for whatever room and speaker set-up it has.

AC-4 from Dolby is one technology which allows objects to be sent with the audio. It still supports conventional 5.1 style sound but can also contain up to 7 audio objects. AC-4 is one NGA technology adopted by DVB for DASH.

In this webinar, Simon Tuff from the BBC discusses what the Audio Video Coding (AVC) experts of DVB have been working on to introduce Next Generation Audio (NGA) to the DVB specifications over recent years. With the latest version of TS 101 154, DVB’s guidelines for the use of video and audio coding in broadcast and broadband applications, being published by ETSI, it seems like a great time to unpack the audio part of the tool box and share the capabilities of NGA via a webinar.

No registration needed. Click here to watch on the day.

Speaker

Simon Tuff Simon Tuff
Principal Technologist
BBC

Video: DVB – Turning the Ship Around

Posted on by Russell Trafford-Jones


In this video of the SCTE Autumn Lecture 2018, Chairman of DVB and the EBU’s Head of Distribution, Platforms & Services, Peter MacAvock explains the ways in which DVB, such a successful influence in our move to digital television, is relevant today and is still working to improve television delivery.

Peter starts with some positive news on the the level of TV watching still sustained throughout Europe despite the indisputable rise of Netflix, partly because much of that viewing has migrated to the television set.

There is a discussion of the promise of DVB-C2 which is introduced with a league table pitching the DVB standards as teams against the mighty ‘Shannon United’ football team that can’t be beaten. Find out what score DVB-C2 would have got if it had seen adoption.

In the rest of this talk, discusses the following:

  • The new TV value chain, compared to the old
  • The relevance of the physical layer now that everything is IP
  • 5G TV Deployments
  • What is DVB-I and why is it useful for IP-deployed services?
  • DVB’s USPs

Watch now!

Speaker

Peter MacAvock Peter MacAvock
Chairman, DVB
Head of Distribution, Platforms & Services, EBU

Video: CHUNKY MONKEY – using chunked-encoded chunked-transferred CMAF to bring low latency live to very large scale audiences

Posted on by Russell Trafford-Jones

Will Law from Akamai proves his chunky credentials by telling us how to achieve very low-latency streaming in his talk at Demuxed 2018.

In the jungle of solutions for low latency live streaming, there are many current options ranging from WebRTC, to proprietary UDP protocols to standard segmented media with ever-shortening segments. This session highlights one of these – chunked-encoded chunked-transferred CMAF – as an optimal and practical confluence of both reach and performance. On the technical side, we’ll investigate the underlying technology, the latency regimes possible, compatibility with legacy players, cachability on delivery networks and player behaviour requirements. Including live demonstrations of several streams on a production network. This talk looks at the standards from DVB and MPEG DASH as well as CDN support. As a sweetener, Will points you at open source code on both the encoder and player side for doing this all yourself.

Speaker:

Will Law Will Law
Chief Architect, Media Cloud Engineering
Akamai Technologies