• Blackmagic Design

  Trisync – User queries

  Posted by David Davidson on July 13, 2005 at 8:57 pm

  Blackmagic’s site specifically says there’s no need for a trisync generator when going direct to the deck:

  “In order to sync your deck to your DeckLink card, without using a blackburst generator, we have provided the option of sending a stable black signal to the deck during capture. All DeckLink cards are designed to allow a direct connection to the deck without the need for a blackburst generator. A blackburst generator is an excellent solution but is an additional cost and you need to buy the appropriate signal generator for your video, eg NTSC, PAL, HDTV 1080i, HDTV 1080p or HDTV 720p.”

  How’s the reports on using the HDPro’s built in sync for 24fps D-5 outputs? Are there any issues with holding sync & timecode accuracy? Does anyone recommend using a tri-sync generator for doing 24fps D5 outputs?

  Thanks much

  david

  David Davidson replied 20 years, 10 months ago 3 Members · 4 Replies
• 4 Replies

• 

  Bob Zelin

  July 14, 2005 at 12:22 am

  yes, at 23.976, and at 24, I recommend using a tri level sync generator to lock both the Decklink HD and the D5. The Blackmagic Multibridge Studio will come with a tri level sync generator built in – they didn’t do this because they were bored.

  Bob Zelin
• 

  David Davidson

  July 14, 2005 at 4:52 am

  Thanks for your kind reply!
• 

  Thom Whitehead

  July 14, 2005 at 3:07 pm

  In my case, using the 4.8 drivers on FCP 4.5 the absence or presence of tri-level didn’t seem to make any difference at all.

  In fact, the ONLY recurring problem I have been having with my HD Pro has been sync recognition. The symptoms were occasional single pixel high pink lines going from the left edge of raster to the center.

  I recently changed out the entire board and updated to V5b4 drivers under FCP 5.0 and OS 10.4 and it seems to have more stability when referenced externally to tri-level.

  If you choose not to reference externally, make certain that the deck is referenced to “input” not “ext”.

  BTW, David, I’m local, so you can give me a call. Email me with your phone number and good times to call.

  We all owe our jobs to Philo T. Farnsworth .
• 

  David Davidson

  July 14, 2005 at 3:43 pm

  Very interesting. It’s hard to find user stories what these outputs are like. I’ll email you directly.

  David

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