• AJA Video Systems

  Audio Frame offset via Kona3

  Posted by Francois Driessen on November 6, 2010 at 4:06 pm

  Hi guys.

  With many HDMI display devices creating a lag in picture synch, is there any way that one can offset the audio synch coming from the Kona3 using the Kona’s settings? – Don’t think I’ve come across it if it does exist?

  Wanting to use a LG 47″ LED 3D as client monitor and that takes about 8-10 frames of processing time to fire the picture.

  Richard Cooper replied 15 years, 10 months ago 4 Members · 3 Replies
• 3 Replies

• 

  Warren Eig

  November 6, 2010 at 4:44 pm

  Under system settings in FCP, experiment with audio frame offset. It is set to 4 frames by default for firewire use. You set it to 0 if you are monitoring directly from the Kona 3, i.e SDI. Not sure what to set it for HDMI.

  Warren Eig
  O 310-470-0905

  email: warren@babyboompictures.com
  website: https://www.babyboompictures.com

  https://www.babyboompictures.com/BabyBoomPictures/AFX.html
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• 

  Jeremy Garchow

  November 7, 2010 at 7:13 pm

  Wha Warren says.

  Anotehr option would be to run the audio through the LCD TV while client is there. It should then be in sync.

  Jeremy
• 

  Richard Cooper

  November 8, 2010 at 8:02 pm

  Under system settings in FCP, experiment with audio frame offset. It is set to 4 frames by default for firewire use. You set it to 0 if you are monitoring directly from the Kona 3, i.e SDI. Not sure what to set it for HDMI.

  Set to 0 for HDMI as well here for our Kona LHi. sync is right on.

  Richard Cooper
  FrostLine Productions, LLC
  Anchorage, Alaska
  http://www.frostlineproductions.com

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