Lawo Technology Helps GloboSat Deliver Rock In Rio Festival In 4K

This year’s highly successful Rock in Rio festival was broadcast live in 4K by GloboSat using an all-IP infrastructure based on video matrix and audio mixing technology from Lawo.

The ten-day event (which included a Dolby Atmos audio mix) was held at Barra Olympic Park in Rio De Janeiro and featured a full lineup of musical acts that was delivered to GloboSat’s 45 million viewers across Brazil. Globosat is the largest pay TV operator in Latin America.

For the massive festival GloboSat configured a remote production set-up connecting the TV compound—a.k.a. “Cidade do Rock” (Rock City)—at the Barra Olympic Park with GloboSat’s production center approx. 15km away via two 2x 80Gbps fiber-optic signal paths.

The TV compound was designed as the central point to collect all signals coming from the various stages. The smaller stages including the Sunset Stage were equipped with Lawo V__remote4 units for video and audio to IP conversion and signal processing. These units relayed the feeds to the TV compound located close to the “Palco Mundo” main stage.

The immersive Dolby Atmos audio mix was produced at Globosat’s HQ using a Lawo mc²96 production console.

The immersive Dolby Atmos audio mix was produced at Globosat’s HQ using a Lawo mc²96 production console.

Given the relatively small distance, all 16 cameras and the audio feeds from the main stage were transmitted to the TV compound’s infrastructure via SDI. The TV compound’s redundant IP infrastructure was built on Arista 7280 switches and Lawo V__matrix for converting baseband SDI signals to IP, processing and compression of video signals and furnishing the multiviewers. One of the V__matrix C100 blades was used to generate a multiviewer mosaic with 24 PiPs whose layout was prepared with Lawo’s theWall software. The other “software-defined” C100 blades were dedicated to processing and conversion tasks.

In total, 28 1080i HD feeds and VC2-compressed 4K feeds were used for the video production. At GloboSat’s HQ, the facility’s V__matrix infrastructure received the HD & 4K feeds plus the discrete audios from the TV compound for remote production.

Alexandre Torres, Globosat’s Development Manager, said they used Lawo technology to encapsulate the signals and transport them to the Globosat HQ, “which allowed us to work from home, in our familiar infrastructure and to record everything."

“IP has become a necessity for us,” he said. “We operate dozens of channels originating from different contribution locations. IP furthermore allows us to engage in remote production, to easily automate certain routines and to share our signals with external parties. Setup times shrink and a significantly larger number of channels can be transported over a single cable at a much higher quality than in the past.”

For monitoring and ensuring signal integrity of all the ST2110 feeds of the production, GloboSat leveraged Lawo’s smartSCOPE Deep Packet Media Inspection & Network Analyzing platform.

For monitoring and ensuring signal integrity of all the ST2110 feeds of the production, GloboSat leveraged Lawo’s smartSCOPE Deep Packet Media Inspection & Network Analyzing platform.

For monitoring and ensuring signal integrity of all the ST2110 feeds of the production, GloboSat leveraged Lawo’s smartSCOPE Deep Packet Media Inspection & Network Analyzing platform. Installed on a server at the main facility, it also allowed easy access and on-site monitoring at the remote TV compound via smartSCOPE’s web interface.

The immersive Dolby Atmos audio mix was produced at Globosat’s HQ using a Lawo mc²96 production console. The console and it’s Nova73 HD audio router also handled all audio routing for the complete 4K and HD productions. The sound engineers worked with 256 audio channels (128 per stage), which were recorded and distributed to various locations. The router inside a Lawo mc²96 console allows to manage up to 256 IP streams, making it ideal for routing in complex multi-site audio set-ups.

“We recorded up to 256 audio channels,” said Gabriel Thomazini, Operational Audio Coordinator at Globosat. “We received streams, we generated streams, routed them to various locations and converted Ravenna streams to MADI and Dante or vice versa. This is only possible with a router like the one in the mc²96."

GloboSat has pioneered remote broadcasting in Brazil, offering its first live 4K broadcast of Carnival in Rio and the coverage of the Brazil Football League in 2015.

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