Olympic games 2012 live radio
Key points: The ABC made the decision not to buy the rights to the Olympics due to budgetary pressures The AOC described the decision as "a great letdown to Australians", particularly those in regional areas ABC radio caller Quentin Hull described the decision as "a national shame".
More on:. Back to top. Footer ABC News homepage. The commissioning process specifications set out that we were to attenuate the lower bowl media tribune. This allowed the commentary to be as clean as possible whilst still providing the commentators with an enveloping and exciting experience.
Ultimately the lower bowl media area was 6 dB down on the rest of the stadium and the upper bowl did not require any attenuation. Athletics It was decided early on that the flown Ceremonies loudspeaker system would also be used for athletics. This required the flown arrays to be augmented with additional product to extend coverage to the lower bowl. This additional coverage was switched off for the Ceremonies. Loudspeakers locations A continuous rigging beam or fixing edge was installed following the oval shape of the field of play perimeter.
It was designed to place the fixing edge approximately 30 metres on-field of the existing roof edge, at a trim height of approximately 30 meters from the field. Geometrically, this is the ideal location for the flown arrays. London Olympics Athletics with arrays. The fixing edge itself was simply a 48mm flexible steel wire rope ring supported by 56 smaller diameter radial wire ropes which tied into the roof support system.
Each flown array had to be located on a junction between the tension ring and a radial rope to provide stabilisation. The flown positions also had to consider the location of the Olympic caldron and other significant set pieces. The design process itself This stadium was an unusual case for me as it was already built, so not only did I have accurate CAD files, but I could also walk around the venue to develop a more realistic sense of how the design would fit into the building.
Once we had determined the final five alternatives the detailed design phase began. Venue geometry The venue is relatively simple in its shape and remains consistent. There are three design features which interrupt the consistent upper and lower bowl profile; the north and south video screen locations and the west side middle bowl.
The basic approach was to use consistent flown and stacked arrays throughout the design to avoid variations in vertical pattern control. This approach suited two thirds of the stadium perfectly, however I expected that the west middle bowl would require unique processing to deal with change in the profile. This would be dealt with during the tuning and commissioning process.
Flown line length To achieve a consistent listening experience throughout the upper bowl each array required 10 V-DOSC elements. At over 4. Selecting 22 arrays allowed us to provide the best balance between providing a stereo listening environment and avoiding too much overlap and damaging intelligibility.
The V-DOSC provided excellent coverage for the upper bowl and for the upper and middle bowl on the west. The flown arrays required extending to provide lower bowl coverage. We had planned to run the V-DOSC with a more full range preset for the athletics given the lack of subs, and perhaps change the system EQ to extend the frequency response.
This approach provided plenty of 40 Hz to 80 Hz for the lower bowl so the downfill could be a two-way product which helps in terms of amplifier count and total system weight. The addition of a pair of ARCS II cabinets to the flown systems provided excellent downfill coverage for the entire lower bowl. London Olympic Closing shot in daylight. KUDO is low profile enough to fit four elements in an acceptable vertical height. Controlling the vertical pattern was not of interest, the goal was to minimise the number of sub-bass sources audible at any listening location to improve the impact and clarity of the system.
The approach was very successful and one that I will definitely be using again. Filling the gaps The loudspeaker system is designed around the venue geometry, yet inevitably there are parts of the overlay such as staging, camera platforms and scenery that creates acoustically shadowed audience areas.
The original design predicted this, and eight 12XT loudspeakers were available to be deployed as required for each Ceremony. All 22 arrays were installed over a four day period. Amplifier Installation The London Olympic Stadium has a catwalk just above the edge of the roof which runs the full circumference of the roof. Various rooms were built over the catwalk to house technical facilities such as automation control, power distribution and audio network nodes.
The placement of the amplifiers was loosely based around the network node layout, but the most important factors were minimising the speaker cable lengths whilst ensuring weather protection of the amplifier racks. Ultimately all speaker cable lengths for the flown arrays were 50 meters and all amplifiers were well protected from the daily London downpour. Networking and Signal Distribution The signal transport and data backbone of the system is based on a four-core optical fibre ring.
In fact BBC1's coverage will break off only for the 1pm, 6pm and 10pm news bulletins — but if I promised that these would not be full of the event then, well, I'd be frankly lying. BBC3 is the other Olympics channel. Once again the term wall-to-wall coverage is being used with some pride by the BBC, which has managed to get special permission to begin broadcasting at 9am rather than the channel's usual 7pm start.
Sky, Freesat or Virgin customers or people with internet-connected TV can also access these channels which will offer live streams of sport. Radio 5 Live will also come into its own. Although perhaps not as heavy as the specially created new temporary radio station 5 Live Olympics Extra.
If that's not enough, the BBC is also introducing a new on-screen device into its Olympics coverage which will allow presenters to point to graphics and move them around the screen. The device, called Kinetrak will be mainly used to illustrate what events can be seen where and when, — "critical" for viewers' enjoyment according to BBC Olympics boss Roger Mosey.
You can listen to the Paralympics on 5 Live— but the TV broadcaster with the rights to that is Channel 4.
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