• AJA Video Systems

  losing audio sync in playback through iohd

  Posted by Jason Morton on November 25, 2008 at 2:55 pm

  help, drifting audio sync in playback. Have tried adjusting off set in fcp prefs and reinstalling software and updating firmware, no success

  my set up:

  fcp 6.0.6
  macbook pro 2.4ghz 2007
  pci siig firewire express card 34 (for the iohd)
  firewire 800 mac (for the media drives gtech 2 x 1tb raid)
  Tx monitor: sony lmd 2050w with sdi card
  ref: aja gen10 hd/sd sync generator

  any ideas?

  Jason Morton replied 17 years, 5 months ago 3 Members · 4 Replies
• 4 Replies

• 

  Jeremy Garchow

  November 25, 2008 at 4:01 pm

  I would put your drives on the Express Card and the ioHD on your laptops fw800 bus.
• 

  Bob Zelin

  November 25, 2008 at 5:46 pm

  I assume you have downloaded the 6.0.1 drivers for the I/O HD. Is this correct ?

  #1 follow Jeremy’s advice
  #2 – when you lose sync, do you only lose sync when you scrub the timeline, or is it simply when playing back media ?

  In FCP, go to system settings/playback tab, and turn off hi quality scrub (I think thats the menu name).
• 

  Jason Morton

  November 26, 2008 at 9:38 am

  Thanks Jeremy, pretty obvious really. The answer is often right under your nose. It works a treat!
• 

  Jason Morton

  November 26, 2008 at 9:40 am

  swapping the iohd onto the mac bus seemed to do the trick. Thanks for responding Bob

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