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HD CAM capture
I am trying to capture HD Cam footage, 1080i / 59.94, with the Sony JH3 . Every time I bring in the footage the Audio is out of sync. It progressively gets worse the longer I let the video capture. I am looking for suggestions. I have tried going through the Kona using HDSDI 10 bit and 8 bit. I also tried creating my own settings for the Kona. I have also tried using DVCProHD1080i60 settings and I had the same issues.
I’m using a…
MacPro
Dual Intel-Xeon 2.66 GHz
Bus speed 1.33 GHz
5 Gigs of RAM
With Final Cut Pro 6.0.5 / Kona LHE -
8 Replies
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[Garrett King] “I am trying to capture HD Cam footage, 1080i / 59.94,”
1080i is 29.97, not 59.94.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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[Garrett King] ” Every time I bring in the footage the Audio is out of sync. It progressively gets worse the longer I let the video capture.”
uninstall then reinstall the correct AJA drivers from the website. ( make sure to check for OS and QT versions)
This usually fixes that issue, as I think it is a software mismatch with the drivers.
gary adcock
Studio37
HD & Film Consultation
Post and Production WorkflowsInside look at the IoHD
https://library.creativecow.net/articles/adcock_gary/AJAIOHD.php -
[walter biscardi] “1080i is 29.97, not 59.94.”
then is 59.94i, 1080? Honesty. I’d like to hear positions on this.
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As far as the 1080i 59.94 or 29.97 issue… I was just going by the tape label. It also says Non-Drop TC.
I will look into replacing the Kona driver…
Is there anything else that could throw it off? For example… Do I need a sync generator or do I need to hook up reference or anything like that?
Garrett
Transition Productions -
[Dino Sanacory] “then is 59.94i, 1080? Honesty. I’d like to hear positions on this.”
1080i 60 is 60 interlaced fields per second or 29.97 frames per second. AJA even has this on their Easy Setups. No clue why someone decided to call it 1080i / 60 because that’s a complete misnomer.
On the other hand 720p/60 is 59.94 or 60 frames per second. This translates to 29.97 perfect when you convert it to 1080i or standard definition since each frame essentially becomes a field when it goes to interlace.
Walter Biscardi, Jr.
Biscardi Creative Media
HD and SD Production for Broadcast and Independent Productions.STOP STARING AND START GRADING WITH APPLE COLOR Apple Color Training DVD available now!
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[Dino Sanacory] “[walter biscardi] “1080i is 29.97, not 59.94.”
then is 59.94i, 1080? Honesty. I’d like to hear positions on this.
““toe-may-toe” “toe-mah-toe”
Dino,
Sony has kept to the old naming convention, which lists frames rather than fields. So in that world
the decks still all use 29.97i (60i) or 29.97PsF (30p-played out as 60i).IMHO It is a carryover since they thought that no one would ever do it differently. Then came Panasonic and instead of a maximum of 30 frames of capture, with the 720 format you now can capture 60 distinct frames.
Try to think of it this way 29.97 is the old way, the way you father did it. The way I choose to look at HD is that everything is based on frames when it is progressive 24p / 25p / 60p; and when it is interlace you get 50i / 60i.
Here in lies the issue- Sony cameras cannot (1080 ones especially) cannot capture more than 30 frames a second, so they stay with the 29.97 naming conventions while the industry while began moving to Panasonic’s 720p60 and their P2 tapeless for delivery has to keep the timebase as given. So Sony uses 29.97i and Panasonic uses 59.94p based on how those timecode systems were designed from the beginning.
gary adcock
Studio37
HD & Film Consultation
Post and Production WorkflowsInside look at the IoHD
https://library.creativecow.net/articles/adcock_gary/AJAIOHD.php -
I have made sure that the Kona drivers and QT are up to date… It seems like no matter what i do my HDCAM Capture loses synch with the audio. Any more suggestions???
What Final Cut settings should I be using to go firewire out of the JH3, if it is even possible???
I have pretty much tried all of them.
Garrett
Transition Productions -
[Garrett King] ” have made sure that the Kona drivers and QT are up to date… It seems like no matter what i do my HDCAM Capture loses synch with the audio. Any more suggestions??? “
did you make sure that when you updated the driver you also updated the firmware? it is a separate process and your problem is one of the indicators that the firmware on the card is no correct.
I assume that you are using the AJA Kona 1080 preset for your frame rate? and that you are capturing audio and video as embedded HDSDI?
gary adcock
Studio37
HD & Film Consultation
Post and Production WorkflowsCheck out
https://www.aja.com/kiprotour/Inside look at the IoHD
https://library.creativecow.net/articles/adcock_gary/AJAIOHD.php
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