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losing audio sync in playback through iohd

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jason morton
losing audio sync in playback through iohd
on Nov 25, 2008 at 2:55:23 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?


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Jeremy Garchow
Re: losing audio sync in playback through iohd
on Nov 25, 2008 at 4:01:34 pm

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




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Bob Zelin
Re: losing audio sync in playback through iohd
on Nov 25, 2008 at 5:46:42 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).





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jason morton
Re: losing audio sync in playback through iohd
on Nov 26, 2008 at 9:40:03 am

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



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jason morton
Re: losing audio sync in playback through iohd
on Nov 26, 2008 at 9:38:01 am

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



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