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Pro Res HQ Problem
Hi. I just spent several frustrating days trying to figure out what was wrong the audio sync in my Pro Res HQ project.
Specs:
2 camera F900 Cinealta shoot
8-core Mac Pro, 8 gigs ram
5 terabyte esata raid – Caldigit e-fasta card
Kona 3 card and “VTR Tape trouble” txt patch from Kona/Apple
Sony JH-3 deckI first had the “VTR tape trouble” error, installed the txt patch from AJA, worked fine – except that audio was out of sync in the QT files.
I reinstalled the entire operating system and applications – everything in sync in the Quicktime files. All settings were for Kona 3 Pro Res HQ 29.97, 48 khz.
However, when I played the in-sync QT files in the FCP Pro Res HQ project, the audio was out of sync. There was a black slug in the video at the end of the clip while the audio contined to play. When I exported the clip from the timeline using the current settings and AS a reference file(not self-contained file), and then reimported the clip back into my project – the audio was in sync. FCP is for some reason is interpreting a clip which has all the right settings as having some other audio setting (maybe 44.1?). I went down to the NYC Apple store and spoke to 2 oth their guys in Pro APps, and they are sending this to their development department. It seems like a FCP software glitch.Has anyone else had this problem? I am using the workaround – exporting a ref file, then reimporting it – but it seems like I shouldn’t have to do this.
Best, Connie
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19 Replies
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Are oyu sure you are playing your video with the proper AJA easy setup?
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Yes. I have tried it 2 ways – with the Kona card and the AJA Kona Pro Res HQ setting and – after speaking with the people at AJA – without the Kona card using the APple Pro Res HQ setting. All of the settings are set to 1920 x 1080i and 48khz.
Thanks.
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I have always had strange problems when I have tried to use Sony J-series vtr
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And what format is your timeline?
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What format is this recorded at?
1080i/59.94 or 1080psf 23.98?
If you want to edit on a 29.97 timeline and are working with 1080psf/23.98 footage, you need to have the deck add the pulldown.
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Hi. Sequence settings are:
Frame Size – 1920 x 1080 HDTV 1080i (16:9),
Editing Timebase – 29.97,
Compressor – Apple ProRes 422 (HQ)Audio Rate: 48 khz
Depth: 24-bit
Config: Channel GroupedThat was an interesting comment on the J-series deck. Did you have audio sync issues? What deck did you use?
Best, Connie
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We are using 29.97 for a PBS series. Thanks.
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We are using 1080i 29.97.
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Do me a favor and run the AJA System Test, make sure to choose your drive array, then choose the 10 bit Uncompressed 1080i setting with a file size of 16 Gigs and report the speeds you will find at the top right corner (it’s the overall read and write speeds of the array.
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Okay.
Write: 166.5 MB,
Read: 188.3 MBAs I understand it, Pro Res HQ requires 32 MB.
Thanks, Connie
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