Video Team Hardware

Work In Progress

Kit list per talk room

Audio

2x Headset Radio Mic
2x Handheld Radio Mic (omnidirectional, because people hold them the wrong way)
2x Mic Stands (Good for getting people to queue up to ask questions - use with handheld mics)
4x 2m XLR cable (mic receiver to snake)

• Radio Mics need to be licence free in all 3 ITU regions
• We need to be able to change frequency to avoid interference with other users

Tasks:

1. Identify suitable radio mic systems (farm off to QAV)
2. Possible Open Hardware project?

2x Ambient Mic (pick up audience chatter / shout out questions)
2x Microphone stand (for ambient mics)
2x 20m XLR cable (to run from ambient mic to desk)

1x 5m 3.5mm stereo Jack to 2x 1/4" mono jacks (PC Audio to DI Box)
1x stereo DI box (2x 1/4" socket In to 2x XLR-M) active / phantom powered (PC audio)
2x 2m XLR cable (DI to snake)

1x 25m Mic 'snake' reel - 6 in 2 out

• http://www.ebay.co.uk/p/xlr-multicore-6-2-way-25m-drum-stagebox-stage-snake-pa-band-stage-theatre/1040025707?_trksid=p2047675.l2644 or similar

1x 8 channel mixing desk

• Requires minimum 8 XLR input channels
• Requires main and aux outputs (I am going to assume XLR for both of these - for this shopping list)
• main XLR goes to Main Camera
• Aux Send goes to house PA (preferably as a slide fader)

• https://www.amazon.co.uk/Behringer-UB2442FX-PRO-UB2442FX-Pro-Mixer/dp/B000CCS3U0/ref=sr_1_10?ie=UTF8&qid=1479480226&sr=8-10&keywords=sound+mixer looks good

2x 5m XLR cable mixing desk to Main camera
2x 20m XLR cable mixing desk to PA (potentially via snake)

1x Balanced to unbalanced stereo balun transformer (XLR-F in to 1/4" Socket Out)
2x 2m 1/4" Mono Jack to Jack
1x 2m 1/4" Mono Jack to stereo 3.5mm jack
1x 2m 1/4" Mono Jack to RCA phono plug
1x 3.5mm Socket to 1/4" mono jack adapter

Opsis: Presentation capture

• Opsis FPGA Video to USB
• 1U case

• ?MinnowBoard Turbot (Micro PC)

  • http://wiki.minnowboard.org/MinnowBoard_Turbot

  • Works well - confirmed at Video Team Sprint Paris 2016-11-18
• Small SSD

  • https://www.scan.co.uk/products/120gb-sandisk-z410-25-ssd-sata-iii-6gb-s-slc-tlc-read-540mb-s-write-405mb-s-35k-55k-iops - or similar

Tasks:

1. Confirm that the Turbot is a suitable PC system Done - works fine
2. Update to fanless PSU
3. mount into 1U case with the following connection seup
   1. Connection to outside world
      1. Common
         • IEC power
         • Power Switch
         • LED from nRST of OPSIS
      2. Opsis
         • HDMI IN (from Presentation laptop)
         • HDMI Out (to Projector)
         • HDMI Out (to confidance screen)
         • Reset (+remote from minno board)

      3. ?MinnowBoard

         • Ethernet (to Mixer PC)
         • USB sockets 1 (or 2 if available)
         • Reset

         • GPIO out from ?MinnowBoard to LED

   2. Connections internally
      • Power switch to power supply

      • Powersupply to ?MinnowBoard (& SSD)

      • Powersupply to Opsis VIA GPIO Controlled Relay from ?MinnowBoard

      • HDMI Out from ?MinnowBoard to Opsis

      • JTAG from ?MinnowBoard to Opsis

      • GPIO out from ?MinnowBoard to relay to power sequance Opsis

      • GPIO out from ?MinnowBoard to relay to switch P18 / K2 (DPDT)

Video Mix PC

• PC Able to host video mixing for 1 room
• For single room events (i.e. a miniconf) this is the only PC needed on site
• Vocto Mix video mixor software
• 2x Black Magic SDI Capture Cards
• 2x NIC (1GBit/s)
• current generation i7
• 16 GB RAM
• 120GB SSD - System
• 2 x 3TB HDD (Mirrored)
• Silent (at least very quiate fans)
• 4U Rack Case NOT to be shipped for miniconf (local miniconf team can supply this!) We ship this as a single case for debconf (n xTalkrooms + 1)
• Keyboard
• Mouse
• Monitor

Kit list VideoTeam Operations Room

Video Master PC

• Video Master PC is used during debconf only. It is responsible for:
• local backup
• local ICEcast Master
• local vypar
• Gate way for Talk rooms
• Same HW as Talk room PC but with 4x3TB spinning disks and 32GB RAM
• Packet Switch