Asia-Pacific Broadcasting (APB) October 2016 • Volume 33, Issue 9 - Page 32

32 Artel enhances IP capabilities in DigiLink platform Artel Video Systems’ DLC450 IP gateway for transport of HD, SD, ASI and GigE signals over 10G Ethernet networks, is expanding IP support in the company’s flagship DigiLink media transport platform. Designed specifically to address the requirements of migrating from direct fibre to IP networks, the DLC450 supports auto-sensing of standards-based, broadcast-quality HD-SDI, SD-SDI and ASI video formats. Integrated within the DigiLink platform, the DLC450 utilises SMPTE 2022-1/2/5/6IP encapsulation and optional Forward Error Correct (FEC) algorithms for flexible configurations that maximise reliable performance and minimise latency. October 2016 HEVC a key driver for 4K/Ultra HD, and more Said to offer double the coding efficiency of the AVC/H.264 video compression standard, HEVC/H.265 has also been closely associated with the advancement of 4K/Ultra HD. Josephine Tan provides an update. A bridge to monitor high density IP networks Bridge Technologies has announced the VB440-V dual Gigabit Ethernet virtual probe (pictured), which monitors high density IP media traffic in core broadcasting networks, production studios, outside broadcast (OB) and master control centres. Designed to enable users to quickly rectify problems and maximise Quality of Service (QoS), the VB-440 supports dual 40 Gigabit Ethernet interfaces and SDI-over-IP, thus providing network operators and digital media organisations with an analytics solution for thousands of streams and multiple technologies in real time and in parallel, said Bridge Technologies. Next Month @ X-Platform UHD Over-The-Top Services PANELLISTS Mock Pak Lum CTO StarHub B Teleport operator STN has been employing Elemental Technologies’ solutions to power its unified headend delivery of broadcast and OTT TV content in HEVC/H.265 to its subscribers. roadcasting 4K/Ultra HD (UHD) content is simply not possible without the highefficiency video coding (HEVC)/H.265 video compression standard, declares Ian Trow, senior director, emerging technology and strategy, Harmonic. HEVC/H.265, Trow tells APB, is essential for delivering high-resolution content such as 4K/UHD as it provides up to 50% bitrate savings, thereby making the distribution of 4K/UHD content viable, especially where service scalability is a key concern. He explains: “With HEVC/H.265, operators can reduce the data rate needed for high-quality video coding to deliver better video quality using the same amount of bandwidth, or the same quality using lesser bandwidth.” For instance, during the 2016 French Open tennis championship held in June this year, viewers in Paris were able to enjoy the tournament in 4K/UHD on channel 81 over TDF, a French digital terrestrial television (DTT) technical network operator, and on Fransat’s 4K/UHD channel, which delivered live coverage of the semi-finals and final matches during the last four days of the tournament. One contributor to the successful delivery of the tournament was Harmonic’s ViBE 4K/UHD real-time encoder, which offers HEVC/H.265 compression efficiency that enables the encoding of 4K/ UHD content at a bitrate compatible with satellite, cable, terrestrial and fibre networks. In partnership with Eutelsat and TDF, the French Tennis Federation and France Télévisions used the ViBE 4K/UHD encoder to broadcast the French Open live in 4K/UHD with high dynamic range (HDR) according to the hybrid log-gamma (HLG) specification, while audio encoding was performed in Dolby AC-4. Viewers equipped with 4K/UHD TV sets compatible with DVB-T2 and HEVC/H.265 were able to experience the tournament through a combination of HDR and HLG technologies. Commenting on the live transmission of the French Open, Trow elaborates: “The biggest challenge we faced was bandwidth. On the terrestrial network, two 4K/UHD channels were broadcast with limited bandwidth availability. “Thanks to the ViBE 4K/UHD HEVC/H.265 encoder, we were able to achieve an excellent picture quality at extremely low bitrates, less than 20Mbps on terrestrial network and 30Mbps on satellite, which is challenging to achieve for sports content.” Designed to encode content in real time via the HEVC/H.265 video compression standard, the ViBE 4K/UHD David Siah Chairman Cloud Security Alliance Singapore In June this year, Harmonic’s ViBE 4K/UHD encoder aided the delivery of the 2016 French Open tennis championship in 4K/UHD to Parisians. encoder processes uncompressed 4K/ UHD signals at eight times the bitrate of current HD sources, and employs a 10-bit precision encoding technology to preserve the image details, sharpness and colour gradients throughout the distribution process, according to Harmonic. As bandwidth availability and connectivity may remain at a premium in certain regions, Trow also recommends adopting HEVC/H.265 in an HD streaming environment as it offers improvements over its predecessor, the advanced video coding (AVC)/H.264 standard. He explains: “HEVC/H.265 improves coding efficiency through several innovative tools, such as enhanced motion compensated filtering, multiple coding block sizes and expanded loop filters.” Trow is also convinced that for 4K/ UHD services to be widely launched in the future, HDR will be a key component, even as 4K/UHD HDR poses another challenge — that of requiring enhanced 10-bit encoding on consumer devices. “Thus, Harmonic’s ViBE 4K/ UHD encoder ensures superior video quality, up to 2160p60 (HEVC/H.265 Main 10 profile), at minimum bandwidth,” he adds. Although the adoption of HEVC/H.265 has largely been driven by the broadcast of 4K/UHD content, it should not be restricted solely to this purpose, suggests Mark Cousins, manager, professional services, AsiaPa хQ̸)!ͅ胊q%Ё́ЁѡѥѕЁѡЁѽ((0