BT Sport's new broadcast production centre, currently being built in east London, will feature a wide range of audio equipment for both on-air work and post-production, including Calrec consoles, Avid Pro Tools HD X and Riedel intercoms. The 80,000 square feet complex is part of what was the International Broadcast Centre for the London 2012 Olympics. The building is part of the iCITY development on the Queen Elizabeth Park at Stratford and will be used to produce three channels, BT Sport 1 and 2 and ESPN. All three will be broadcast in standard definition and HD, with 5.1 also available. Three Calrec Audio 40-fader Artemis Light desks are being installed in the control galleries of the main studios (pictured under construction), which have been floated for full isolation. The consoles will be linked to an Artemis Beam rack as a routing core to create a Hydra2 network. BT Sport chief engineer Andy Beale explains that the Hydra is to be used to feed wall boxes in the studios, as well as connecting to the main Snell 850 hybrid router. Wisycom wireless microphone and in-ear monitor systems are being installed for on-air work. Audio recording and editing will be based on Avid Pro Tools HD X. The main dubbing room will feature this along with a 32-fader D-Control desk. A QC (quality control) suite is to have an eight-channel D-Command controller as well as access to Pro Tools. BT Sport has bought the rights to live coverage of English Premier League football and Premiership rugby union. These broadcasts will be produced at the grounds with on location commentary but for incoming feeds of other events, including Italian Serie A and French Ligue 1 football, eight voice booths have been installed for commentators to work "off screen". The voice booths, like the audio suites, are being built by Studio Schemes and will include Sonifex CMCU21 commentary units, with two Sennheiser HMD26 headsets and two Coles 4104 Lip mics. Beale explains that booths 5 to 7 are available for more "serious" voice over use involving a Neumann TLM193 mic. VO8, which is the Pro Tools booth, offers two TLM193s. The hub intercom system is a Riedel Artist, comprising three sets of 128 frames and a total of 140 control panels. The frames are connected over fibre while the panels are on CAT5 cabling. A CTP Systems dbc1 system will be used for camera talkback, with the ability to switch between different areas. The BT Sport studios are due to be completed by the end of July.