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On October 27, 2020 The Federal Communications Commission issued an order to expand its captioning mandate for broadcasters to include audio description requirements for 40 designated market areas (DMAs) over the next four years. The move came after the Twenty-First Century Communications and Video Accessibility Act of 2010 (CVAA) directed stations in the top 60 DMAs to provide what it calls “described programming.”
Low Complexity Enhancement Video Coding (LCEVC) is gaining traction faster than any other video compression standard as it approaches final approval by the Moving Picture Experts Group (MPEG).
Video encoding is running up against a complexity barrier that is raising costs and reducing scope for further improvements in quality.
In 2017, at that year’s VidTrans conference a regional gathering of members of the Video Services Forum (VSF), a new protocol for delivering audio and video over lossy IP networks (including the public Internet), was born. It was an idea that many had been skeptical of, since the open Internet brought with it all kinds of quality, security, latency and reliability issues.
Saving dollars is one of the reasons broadcasters are moving to IP. Network speeds have now reached a level where real-time video and audio distribution is a realistic option.
Taking this technology to another level, Rohde and Schwarz demonstrate in this eBook how to reduce costs even further and provide contribution and distribution over the internet.
In part-1 of this series, Challenges, we introduced the basic concepts of the technology behind live OTT delivery. In this article, we dig deeper to help broadcast engineers and technical managers understand the intricacies of HTTP and IP technology, so they will be able to design and support OTT systems more effectively.
As the television business has become more global, and evolving consumer devices spawn the need for ever more formats, there has been an explosion of the number of versions that are needed for an item of content. The need to provide tens to hundreds of language versions provides added complications, with localized versions often being created at dispersed dubbing and captioning facilities. The Interoperable Media Format (IMF) has been developed as the solution to the sensible processing of motion pictures and episodic shows. In the linked e-book, Rohde & Schwarz explain IMF and introduce Clipster as a platform for IMF workflows.