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Blackmagic Design Workflow Used to Create Wuhan TV’s First HD Studio

China’s Wuhan TV has installed a Blackmagic Design workflow, incorporating a number of products, to create their first full HD studio. The products include Blackmagic Studio Camera 4Ks, ATEM 2 M/E Production Studio 4K, ATEM 1 M/E Production Studio 4K, Teranex 2Ds, Universal Videohub 72, SmartScope Duo and various OpenGear Converters.

Wuhan TV is a sub provincial level television network based in Wuhan that provides residents with eight television channels and five radio channels. Having built a 280 square meter HD studio at the end of 2016 to get ready for the new broadcasting challenges, the new studio will be utilised to produce Wuhan TV’s flagship live news program “Wuhan News” as well as many other programs.

In order to protect the signal paths all of the sources, from both inside and outside the studio, including five Blackmagic Studio Camera 4Ks, are connected to the ATEM 2 M/E Production Studio 4K and Universal Videohub 72, which not only serves as a video router handling all of the signal management throughout the studio, but also as a redundant unit for the ATEM 2 M/E Production Studio 4K switcher.

Wuhan TV production studio is now Blackmagic-technology centric. Click to enlarge.

Wuhan TV production studio is now Blackmagic-technology centric. Click to enlarge.

Feeds from outside the studio, such as those provided by the broadcasting department or a 4G feed sent in by a reporter on location, go through a Teranex 2D for frame sync and audio de embedding — as well as standard conversions when needed. The resulting signal is sent to both the ATEM switcher and Universal Videohub via the two outputs on the Teranex 2D.

An ATEM 1 M/E Production Studio 4K switcher is used to mix the program feed from the ATEM 2 M/E Production Studio 4K with feeds from character generators and graphics systems. For redundancy, one of the Universal Videohub 72’s ports is dedicated to outputting a backup feed, along with which the program feed from the ATEM 1 M/E Production Studio 4K goes into a fail safe routing switch. A Blackmagic OpenGear Converter Audio to SDI embeds the audio feed from the audio mixer to the feed output by the fail safe switch. The resulting feed is then sent to the broadcasting system via optical fiber.

Station officials noted that because most of the Blackmagic gear is 4K capable, upgrading from the current HD operation will be easier. Click to enlarge.

Station officials noted that because most of the Blackmagic gear is 4K capable, upgrading from the current HD operation will be easier. Click to enlarge.

A HyperDeck Studio is used to record the master and also serves as a source connected via a Teranex 2D to both the ATEM switcher and Universal Videohub 72. On the technical director seat are an ATEM 2 M/E Broadacst Panel and an ATEM 1 M/E Broadcast Panel for controlling the two said ATEM switchers respectively, as well as a Videohub Smart Control panel for the technical director to control the Universal Videohub 72 in the event of main video mixing equipment failure.

For technical waveform monitoring, a SmartScope Duo 4K is installed on the monitoring seat and a Videohub Smart Control is used by the operator to choose any source connected to the Universal Videohub 72. Unlike traditional camera control, five Blackmagic Studio Camera 4Ks are controlled by adjusting the settings such as black level, iris and color balance on the ATEM Software Control Panel running on a computer.

”Most of the Blackmagic products we have installed for the new HD studio, such as studio cameras, switchers, recorders and monitors are actually 4K products, which are perfect for both the current HD and future higher resolution productions, making sure our investment is protected, but the costs of which are even lower than the HD products of other brands.”
— Lu Hui, Engineer, Production Center, Wuhan TV
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