Ü10 audio control room

Equipped with Lawo mixing and control systems, and Riedel comms systems, Ü10 is the latest OB at German TV production service provider, Studio Berlin.

The UHD/HDR OB is designed as a trailer with space for up to 26 people to work, and has already proven itself, successfully providing live production for the German Television Awards (RTL) on its maiden voyage. In the future, Ü10 will be used mainly for the production of the German Soccer League (Bundesliga).

Ü10’s Audio Control Rooms are equipped with a Lawo mc²56 production console and an mc²36 all-in-one console respectively, powered by redundant A__UHD mixing cores and a Lawo VSM control. Planning and construction of the vehicle was accomplished by German system integrator, Broadcast Solutions.

Taking into account its 60m² of working space extension, it can work with up to 24 UHD cameras, and is complemented by a modern set-up truck. The greatest conceptual innovation of the Ü10 project is the complete separation of control room and technology – the technical components are not installed in the OB van itself, but are completely housed in ten 19-inch racks in the central equipment room in the accompanying set-up van. The vehicles are connected to each other by redundant fibre-optic interlinks.

Studio Berlin sound engineer, Mathias HeinrichThe two Lawo mc² consoles in the OB van are each fitted with fully redundant A__UHD cores. Each stand-alone core delivers 1,024 channels of audio processing (48/96kHz) and offers numerous monitoring options as well as downmixing and upmixing. A__UHD technology is based on open AoIP standards such as ST2110-30/-31 and AES67/Ravenna, and use Ember+ and NMOS for control. For large productions, the vehicle can access up to eight video and audio stageboxes.

‘As part of our new OB van build, we were faced with the decision of which audio system to use,’ says Studio Berlin sound engineer, Mathias Heinrich. ‘We wanted forward-looking IP technology, and we have always relied on Lawo for audio processing and mixing, so only A__line AoIP nodes combined with a new mc²56 MkIII or an mc²96 came into consideration. Due to the space limitations of an OB van, we opted for the mc²56 console.’

Audio Control Room 1 uses a 64-fader mc²56 MkIII, which has native support for SMPTE 2110, AES67/Ravenna and Madi audio streams. In addition to multi-user operation, AutoMix, upmix, downmix and Lawo Kick, the console includes audio-follows-video functionality, integrated 3D/immersive mixing tools and parallel compression. Lawo’s IP Easy functionality (based on the Home management platform for IP broadcast infrastructures and features automatic detection and quarantine routines), makes IP set-up as straightforward as analogue.

Audio Control Room 2 is equipped with a 16-fader mc²36. Its built-in A__UHD core technology provides 256 processing channels (48/96kHz), local I/O, 864 channels and integrates with solutions such as Waves SuperRack SoundGrid. It also and supports ST2110, AES67, Ravenna and Ember+. The mc²36 also offers intuitive IP network management based on Lawo’s Home platform.

Studio Berlin's Ü10 UHD/HDR OB‘Due to the structured surface of the Lawo consoles and their peripherals, a seamless transition with almost unchanged operation is possible despite the technology change to ST2110 AES67/Ravenna,’ says Heinrich. ‘The Lawo audio infrastructure combines to make a high-performance system that we believe can cope with almost any large-scale production. The Ü10 was conceived and built with major sports productions and show events in mind, and is therefore equipped to handle any imaginable production.’

The Ü10 allows productions with up to 24 UHD cameras, plus additional wireless cameras. It is equipped with a Grass Valley 12G K-Frame XP Compact vision mixer with Xtreme option. Two Grass Valley control panels, a Karrera K-Frame 3 M/E in the main control room and a Korona 2 M/E in the second control room, access the image mixer. For the router, Studio Berlin chose the decentralized MediorNet solution from Riedel, which manages the video and audio signals as well as the multiviewers.

All of this production technology is controlled by VSM (Virtual Studio Manager) from Lawo. This manufacturer-agnostic system controls all video/audio routers and mixers, intercoms, UMDs and multiviewers, ‘glue’, and other third-party baseband and IP devices.

‘Using VSM, we can quickly route individual intercom ports from Riedel to the Madi streams of the Micron UHD cores and the AES ports of the A__stage80 audio stageboxes at the touch of a button,’ says Heinrich. ‘The fully redundant VSM system is the only sensible solution for us to be able to work in a clearly structured and, above all, fast and efficient way, not only in the intercom area, but also for the wiring of transmission lines, monitors, de-embedders, and all other video and audio signals.

VSM in use at Ü10‘With VSM, we are prepared for any request from the customer,’ he adds.

The ability to create pseudo-devices within VSM makes it possible for the whole team to work ‘virtually’. This ‘embedded workflow’ conserves physical resources such as Madi streams or AES paths, which provides freedom and flexibility elsewhere.

Heinrich says that ‘Two Lawo V__pro8 units were installed for additional embedding and de-embedding, which enables us to quickly and easily shift times in terms of an audio/video offset. Any Dolby alignment is a ‘piece of cake’ with this.’

By moving the technology out of the OB van and into the set-up truck, the Ü10’s work areas have been optimised, making Plexiglas partitions superfluous. This concept enables extremely flexible use of space – by moving doors and monitor walls, an open-plan control room can quickly be created by combining the two individual control rooms. Ü10’s air-conditioning system does not need to cool any equipment, so air exchange and filtering are likewise optimised, and treatment with UV light renders viruses harmless – a technique that has already been tried and tested in the health sector, but represents a new approach in the construction of OB vans.

The Ü10 also sets standards in terms of reliability during productions. The vehicle is equipped with a powerful UPS buffer, and in the event of a power failure, can continue running an entire production for 15 minutes on battery power alone, leaving time to react and change the power source should an emergency arise.

Ü10 comms

Studio Berlin selected Riedel’s MediorNet MicroN UHD media distribution and processing to meet its requirement for decentralised signal routing, installing 38 Riedel MicroN UHD modules in the mobile. Eight MicroN UHD modules are being used as stageboxes, while several others have been configured as multiviewers using the MicroN UHD MultiViewer App.

Studio Berlin Technical Manager, Matthias AlexandruTo provide production crews with a safe, spread-out working environment in the OB van’s control room, Studio Berlin housed ten racks of complete equipment in a separate trailer, with a fibre-optic interlink connecting the two. To save additional space, Riedel’s flexible MediorNet MicroN UHD system is split between the two vehicles. As a result, the Ü10 can accommodate up to 26 workstations – and 24 UHD cameras – while maintaining a maximum distance between them.

‘For the unique design of the Ü10 – where space is at a premium to meet social distancing requirements – a decentralised router was a must,’ says Studio Berlin Technical Manager, Matthias Alexandru. ‘While centralised solutions feature large, fixed designs with intensive cooling requirements, the distributed architecture of MediorNet MicroN UHD allows us to start small and scale the system with additional modules as needed. Further, it enables production teams to collect and distribute all stagebox signals directly from where they originate. With centralised solutions, this requires additional hardware that adds weight, reduces flexibility and increases cost.’

‘Live production teams face unprecedented challenges in the Covid-19 era, and Studio Berlin has met them head-on with an unprecedented solution,’ says Tobias Claus, Senior Account Manager for Broadcast at Riedel Communications. ‘The company’s Ü10 provides production teams with a safe, socially distanced working environment without hampering their workflow. We couldn’t be prouder to have our MediorNet MicroN UHD working behind the scenes to provide decentralised signal routing.’

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