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Playback issue – IoHD / FCP 6.0.2
I just got my IoHD yesterday and am having an issue with it during playback. (I have yet to hook up a deck and digitize).
I’m playing back a DvcProHD timeline (1280 x 1080i60) through my IoHD into a (beautiful) JVC 17″ CRT-HD monitor.
The picture is outstanding: however, I can’t play more than 1 to 2 secs without dropping frames, or the picture stuttering.
The AJA FAQ states that some processors may not be fast enough to process DvcProHD. I’m running the MacBookPro 17″ 2.4 dual with 4Gb RAM. The IoHD was made for editors like me, yet I can’t playback DvcProHD as a single stream!
I’ve tried storing my media on a single e-SATA drive, as well as a (RAID 1) raided drive, and nothing changes; so I don’t think storage is the issue. BTW, my eSATA drives are connected via Express 3/4 card.
I’ve also tried placing the DVCProHD footage on a ProREs timeline. It plays back (after rendering); but the picture isn’t quite as nice – slightly soft, compared to the native DvcProHD.
BTW, I’ve tried 8-bit uncompressed from the single drive and it works fine.
Any ideas? I’d love to keep it DvcProHD, and I can’t understand why it doesn’t work, yet has smaller bandwidth than 8bit uncomp which looks fine.
Thanks in advance,
Paul -
16 Replies
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[Paul] ” I’d love to keep it DvcProHD, and I can’t understand why it doesn’t work, yet has smaller bandwidth than 8bit uncomp which looks fine.”
I’d recommend trying Raid-0 instead of Raid-1 to see if that makes a difference. Typically Raid-1 is no faster than a single hard drive, wheras raid0 will nearly double the throughput. That’s a huge difference when playing back HD.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.
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Whoops, that’s an error on my part. I meant to say RAID 0, not RAID 1. It’s not a mirror RAID.
Sorry,
Paul -
[Paul] “Whoops, that’s an error on my part. I meant to say RAID 0, not RAID 1. It’s not a mirror RAID.”
Call AJA Paul. I’ll bet they can help.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.
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Should be working, dude. Are you sure you have the proper easy setup checked? ProRes is 10bit, DVCPro HD is 8bit.
Also, about the soft ProRes playback, are you on dynamic or medium quality rt?
jeremy
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which viewing setting should I be on, then? All I see are IoHD ProRes options, either HQ or not.
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Do me a favor and run the disk speed test on your SATA array.
I know this means nothing, but I have a lower speed MBP than you and I can run DVCPRo HD 1080i with an ioHD all day long. I have a 2 drive raid0 express 34 array that gets around 100MB/sec.
Jeremy
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read 101 MB/s
write 115 MB/sTimeline setting: tried both DvcProHD 1080i60 & AJA ioHD 1080i 29.97 DvcProHD. Same result for both.
also tried different FW800 cable – no difference
footage was captured native DvcPro HD 1080i60 through firewire prior to my recieving the ioHD
Thanks for the help,
Paul -
Okay.
Try this. Quit FCP, open the clip in AJA TV. What happens then?
Jeremy
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it plays the video at a lower resolution – definitly NOT full-res; but it plays
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Right, that happens to me too.
It seems to me that something is setup wrong in FCP. Triple check your seq settings and playout settings.
Jeremy
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