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The legacy gamma adopted in 709 and 240M has recently been supplanted by two more approaches to applying non-linearity to luminance, namely the Hybrid Log Gamma (HLG) system developed by the BBC and NHK and the Perceptive Quantizer (PQ) developed by Dolby.
Low Complexity Enhancement Video Coding (LCEVC), otherwise known as MPEG-5 Part 2, has emerged as de facto codec of the year after adoption by a number of broadcasters and technology companies, as well as promotion to MPEG/ISO final draft international standard in November 2020.
With viewers demanding to watch what they want, where they want, and how they want, it’s not surprising we’re seeing an unprecedented growth in broadcaster OTT requirements. However, the change in delivery format from traditional broadcasting is providing us with some interesting challenges.
To see how to make computers secure, we have to go way back to see how they work.
Noise shaping performs an important role in digital audio because it allows hardware to be made at lower cost without sacrificing performance, and in some cases allowing a performance improvement.
Standardized QoS/QoE monitoring systems ensure that Sinclair operators can seamlessly aggregate, analyze and troubleshoot all broadcast performance data groupwide. It also builds a solid foundation for future automation.
As 5G mobile networks become more ubiquitous, the Broadcast and OTT industries are looking to leverage the technology’s speed and low-latency advantages for the management and distribution of live content. Tech companies too are now leveraging cloud-based, edge computing services like AWS Wavelength and Google Compute Engine on the AT&T and Verizon 5G network edge to power their own software platforms and help content providers deliver live streamed sports and entertainment events.
During the DTV transition, we chief engineers in the Kansas City market joked about broadcasting the most popular cable channels on our new ATSC 1.0 digital subchannels and running the local MVPDs out of business. Station owners weren’t interested because ATSC 1.0 had no provisions for subscriber broadcasting. ATSC 3.0 does.
