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The reality of hd satellite distribution drouin vsf may 2005

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The reality of hd satellite distribution drouin vsf may 2005

  1. 1. HD Distribution:The Reality of CodecCompatibility Marie Josée Drouin mj@favnet.net 05/05/24 © 2005 FAV Inc.
  2. 2. Agenda• Pool Feed Set-ups• Specifications• Preparation• Technical Results• Going forward 2/9
  3. 3. Special Event over Satellite HD Production Van Uplink to Satellite Pool Feed Takers 3/9
  4. 4. Special Event over Integrated Network Uplink to SatelliteHD Production Van Fiber Terrestrial Network Pool Feed Takers 4/9
  5. 5. Specifications – Set-up• HD SDI with 4 embedded audio channels• 1920x1080i• Compression MPEG2 MP@HL (4:2:0)• Video Bit rate ~ 36 Mbps• Musicam audio• Standard GOP – Length = 9, Structure = IBBP• Standard RF Set-up – Reed-Solomon, QPSK, FEC ¾ 5/9
  6. 6. Preparation• Broadcasters and HD decoders• Encoder/decoder compatibility testing• Pre-show testing• SD backup 6/9
  7. 7. Technical Results• Surprising compatibility of encoders/decoders• Standard set-ups work well• Typical RX chain RF problems (full transponder digital signal) – PLL, – Interference, – Rain fade, and – Faulty RX chains• HD/SD decoder confusion• Several broadcasters without encoders and simply turning 19 Mbps around 7/9
  8. 8. Specifications - Hardware• Encoder – Tandberg• Decoders – Motorola – Sencore – Harris – Tandberg – Tiernan – KTech 8/9
  9. 9. Going Forward with HD• Necessity of purchasing DVB-ASI or SDTI compatible equipment• More complex encoding set-ups• Video on Servers: File compatibility and inter-operability between vendors• Questions? 9/9

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