BCD celebrates its best year ever in 2009. its hard to identify quite what we have been doing, as everything seems to get blurred into one project!
Most of our activity involved the completion of our kit for the 6 BBC Radio outside broadcast trucks.
Four Installer-48 racks are used to provide Audio infrastructure, with Audio Distribution, AES-3 Distribution, Analogue to Digital, Sample rate and Digital to Analogue conversion.
A bespoke 4-wire Outside Broadcast Communications system was designed and integrated into the system , to the comprehensively detailed customer specification.
Six Cue circuits originate in the truck, and can be selected and trimmed for level, and then IFB ( Interrupted FoldBack) switched to six transformer balanced 4-wire GO circuits.
Four identical talkback outstations and the Main sound desk can talk to the GO circuits, and also listen back to the six 4-wire Return circuits. Each outstation uses a 12 way mixer, to allow the operator to hear Go and Return talkback traffic.
Extensive use of Dual 6-way remote mixer cards made this easy to achieve.
Most of the Audio electronics is located in one 3U rack, with the core functions and intelligence built on to just two Eurocards.
Each Talkback Outstation uses minimal cabling, as all control is via a single RS485 control pair.
Two BCD AMU (Audio Monitor units) are located each side of the truck, and each can pick up Analogue or Digital sources.
Four Dual PPM movements completed the Audio monitoring behind the console, with GPI control of AB/MS switching, and our AES-3 iPPM drive card.
Finally a little remote controlled Producer mixer was required, and this was easily achieved with the BCD RS485 technology and remote mixing Eurocards.
Secondly, BCD Audio is getting into Video!
Our SDI Vision switcher was designed to integrate the Switching, Synchronisation, Audio Embedding, SDI and PAL conversion functions normally found as individual Video products into one compact 1U unit.
To keep cost and power down, all Processor, Video switching and embedding functions are achieved in a single FPGA.
The units were designed and then deployed around 20 Committee Rooms, completing a Web-cast system.
BCD's Net Serial controller liaises between the Conference control system, directing the Cameras for Pan/Tilt/Zoom and controlling the Vision switcher.
The system is designed to run automatically, in each Committee room. However Ethernet and RS422 remote monitoring is included, allowing all units to be remotely supervised from the media centre.
As the Vision Switcher already had four Audio inputs, it occurred to us that the unit could function as an Audio-triggered Vision system, that might find use in radio studio web-cast.
BCD currently have a system undergoing field trials, and hope final systems will be deployed in 2010.