About 'Designing IP Broadcast Systems'

This series builds on the foundations of the huge body of work already published by The Broadcast Bridge on IP. The 18 article collection delves deeper into various aspects of how IP based systems work, with detailed technical explorations of key themes including; design philosophies, discoverability, hybrid systems, remote production, cloud infrastructure and software control layers.

IP for broadcasting is no longer a theoretical concept. It is proving its worth in television stations throughout the world. But transitioning to IP has its challenges, even for those lucky enough to work on greenfield sites. The abstraction of the video and audio essence from the underlying timing plane is presenting many issues whose solutions were often taken for granted in SDI and AES infrastructures, but the learning curve needed to make IP systems work for broadcasting is well worth the investment.

Fundamentally, we’re distributing synchronous video and audio over an asynchronous network, and in doing so, we’re effectively destroying the timing plane. To reconstruct the video and audio signals at the destination we must synthesize a timing system that operates over an asynchronous packet switched network. Switch buffers with indeterminate latencies conspire against this goal so packet jitter and loss become something we have to work with.

To achieve the promise of scalability, flexibility, and resilience, a change in mindset is required as broadcast engineers expect video and audio signals to be delivered with near perfection, but IT engineers and the vendors who manufacture routing and switching equipment assume there will be some packet loss due to the dynamic nature of IP networks. Once this has been accepted, then designing IP broadcast systems becomes more achievable.

Designing IP Broadcast Systems picks up the story where ' Understanding IP Broadcast Production Networks- The Book' left it, and assumes the reader has read this earlier work.  

Designing IP Broadcast systems will publish in four parts. Details of all four parts can be found HERE.

About Part 4. System Management Software

Part 4 is a free PDF download containing 4 articles:

Article 1 : Software Defined Networking
SDNs are relatively new to IT and are making great milestones into optimizing networks to improve their performance, especially for heavy hitting media flows.

Article 2 : NMOS
SMPTE have delivered reliable low latency video and audio distribution over IP networks, but it’s NMOS that are delivering solutions to operational requirements.

Article 3 : Surf The Wave
Our partner Lawo discuss how broadcasters in different parts of the world who have already migrated to IP, in whole or in part, are actively looking into how the original flexibility promise of IP can be taken one giant leap further. Brace yourself for the Second Wave… 

Article 4 : System Monitoring
Monitoring is at the core of any broadcast facility, but as IP continues to play a more important role, the need to progress beyond video and audio signal monitoring is becoming increasingly important.