Difference between revisions of "EMFBC"

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(→‎Topology: is now system overview. Also, rewrite.)
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The aim of the game is to broadcast everything, and be awesome at it. We can expect to broadcast 2 stages live in HD, with graphics. And record clean versions for editing down to stick online later (but not 2 years later!) - like a few hours after the talk has ended. We also expect to be able to do act as an overflow facility - if one stage is full, we can send the video to another stage's A/V system. And for legal reasons, we'll also be able to not broadcast some talks, but instead broadcast a holding slide / other pre-recorded content. Overnight, we'll show a mix of recorded content, EMF on time delay, and possibly have guests in for chats. Essentially, we're aiming for the full works.
 
The aim of the game is to broadcast everything, and be awesome at it. We can expect to broadcast 2 stages live in HD, with graphics. And record clean versions for editing down to stick online later (but not 2 years later!) - like a few hours after the talk has ended. We also expect to be able to do act as an overflow facility - if one stage is full, we can send the video to another stage's A/V system. And for legal reasons, we'll also be able to not broadcast some talks, but instead broadcast a holding slide / other pre-recorded content. Overnight, we'll show a mix of recorded content, EMF on time delay, and possibly have guests in for chats. Essentially, we're aiming for the full works.
  
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== Topology ==
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== System overview==
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'''Connectivity'''
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* We run it all video control/mixing from one location, possibly a caravan, possibly a tent. In there, we house the transmission control, edit PC's, record/playout servers, and push content from here too. It'll be full of screens & generate plenty of warmth!
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*EMF will likely have 2 or 3 stages, each probably 100 meters or more apart. MCC wil need to be close to either one of (or the middle one of) the stages: we'll use less cable.
 
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*This means we need quite a bit of VIDEO cable:
 
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**Datarate is 1.486Gbps
 
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**Any encoder introduces very bad latencies. And Will clog the network very quickly. Generally not broadcast-reliable either :(
 
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**Fiber may be cheaper
 
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***Russ has a pile of fiber, will there be any spare we could borrow (lc-lc, multimode).
 
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*And networking:
 
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**EMF-NOC will be nearby, short enough for conventional Cat5e/6.
 
  
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'''Master control caravan (MCC)'''
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* We put a 'stagebox' in each track tent, and run fibre/coax (distance dependant) to & from it to the master control room for video & audio. Each stage box will have a small hdmi router, a vision mixer, and some video convertors to take whatever people throw at it - SDI/VGA/DVI/composite from speakers laptops. Each box also outputs to the stage's projector, independently of mixing the broadcast feed. Audio is also taken into the stagebox from the track tent's sound desk. The stagebox will have connections for cameras as well (obviously!) The box will output the clean feed back to master control for broadcast(or not broadcast)/moderation/editing/overflow... Stageboxes will also act as an endpoint for comms, and be controlled remotely.
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From where we'll run the operation. We need a caravan, to be purchased/acquired at roughly T minus 8 months. Approx 4 berth size please. Budget £300 (Hipster knows an outlet of cheap caravans).
 
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'''The broom Cupboard'''
 
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A Camera, a set of lights, and 3 mics outside the caravan - good for interviews really. Possible collaboration with radio people?
 
  
 
==  MCC ==
 
==  MCC ==

Revision as of 17:14, 5 February 2014

WTF?

The aim of the game is to broadcast everything, and be awesome at it. We can expect to broadcast 2 stages live in HD, with graphics. And record clean versions for editing down to stick online later (but not 2 years later!) - like a few hours after the talk has ended. We also expect to be able to do act as an overflow facility - if one stage is full, we can send the video to another stage's A/V system. And for legal reasons, we'll also be able to not broadcast some talks, but instead broadcast a holding slide / other pre-recorded content. Overnight, we'll show a mix of recorded content, EMF on time delay, and possibly have guests in for chats. Essentially, we're aiming for the full works.

System overview

  • We run it all video control/mixing from one location, possibly a caravan, possibly a tent. In there, we house the transmission control, edit PC's, record/playout servers, and push content from here too. It'll be full of screens & generate plenty of warmth!
  • We put a 'stagebox' in each track tent, and run fibre/coax (distance dependant) to & from it to the master control room for video & audio. Each stage box will have a small hdmi router, a vision mixer, and some video convertors to take whatever people throw at it - SDI/VGA/DVI/composite from speakers laptops. Each box also outputs to the stage's projector, independently of mixing the broadcast feed. Audio is also taken into the stagebox from the track tent's sound desk. The stagebox will have connections for cameras as well (obviously!) The box will output the clean feed back to master control for broadcast(or not broadcast)/moderation/editing/overflow... Stageboxes will also act as an endpoint for comms, and be controlled remotely.

MCC

At the center of it all. We'll mix, edit, broadcast,stream, archive, route... All from here. Our kit will probably fit in two main racks, distributed evenly over the wheel arches of the caravan os we can tow it.

On the IT side, we'll need the following machines:

  • Switch. Managed Switch.
  • Control PC
    • Reads the schedule, controls the videoservers, possibly controls the remote mixers.
  • Edit PC
    • Reasonable fast machine to run a video editing program on.
    • We'll cut down the chaff from the goings on in the stages, add Titles, Credits & end boards on this.
    • We'll upload our content from here too (in the background whilst we edit).
  • Storage / record machine
    • 2TB that can do 200Mb/s. No other purpose.
    • Must be something like R10,R51,R60. Basically, quick, reliable.
    • Videoservers, recorder, edits, will all run from here.
    • posibly dual NIC (decide later).
    • Record the incoming feeds.
    • Control to get new clip for each talk.
  • Videoserver (2Ch PLAYOUT/GFX)
    • Runs Graphics (fill & key) during the day.
    • Runs videos in the overnight continuity service. Can internally key the graphics for overnight.
  • Streamer1
    • Streams the 1st Stream
  • Streamer2
    • Streams the 2nd Stream


On the hardware side:

  • Screens (all HDMI unless otherwise stated)
    • VideoServer Output 1
    • VideoServer Output 2
    • Multiview A
    • Multiview B
    • Program A
    • Program B
    • Edit Left
    • Edit Right
    • PC1 (optional, any)
    • PC2 (optional, any)
    • RPi(optional, any)


  • HDSDI-HDMI convertors (LKV-368 are £30 on amazon/ebay)
    • RecServer Output 1
    • RecServer Output 2
    • Multiview A
    • Multiview B
  • Clocks
    • Leitch 1 (big hands clock)
    • LED1 (caravan left/front)
    • LED2 (caravan right/back)
  • Controllers (serial / USB to the control PC)
    • Controller1
    • Controller2


General items

  • Rack1
  • Rack2
  • Power strip 1
  • Power strip 2
  • USB Keyboards
  • USB Mice
  • Phone charger :P
  • Network cables
  • Lights
  • 2 Floodlights


Outstation items (for each outstation)

  • Mini rack/flightcase
  • HDMI to HD-SDI convertor
  • VGA to HDMI
  • HDMI Distribution amp
  • HDMI Switch (Hacked for network control)
  • VGA Cables
  • HDMI Cables
  • Power strip
  • 4 20M XLR cables
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