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Using Kona LHe for DVCPro HD

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Thomas Miller
Using Kona LHe for DVCPro HD
on Mar 19, 2011 at 4:22:39 am

Greetings,

We have been asked by a client to digitize a few dozen HD tapes that were shot with Varicams onto DVCPRO HD stock. We have a 1400 deck, and a Kona LHe with BOB. They asked us specifically to digitize to DVCPRO HD, despite my praise for Pro Res. We've only ever compressed to the Apple Pro Res codecs, so this is new territory for us. Sorry ahead of time for the ignorance here!

The only settings we have for DVCPRO Hd seem to want to use the firewire only, bypassing the card. I also have 8-bit and 10-bit uncompressed through the card. Is that the same thing? If they asked specifically for "DVCPRO HD" do I need to go through firewire, or am I missing a codec from AJA that I can download, allowing me to do DVCPRO HD through the card.

On a side note, which is better quality? The 8 or 10-bit uncompressed or the DVCPRO?

Thanks for any primer here on this topic!

Tom Miller
Big Pictures Media
Denver, Colorado

http://www.BigPicturesMedia.com


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AJA Sales Department
Re: Using Kona LHe for DVCPro HD
on Mar 19, 2011 at 2:22:37 pm

Tom,
AJA provides DVCPRO HD Easy Setups for Final Cut Pro. It\'s possible you are filtering your Easy Setups by format or frame rate in the Easy Setup prompt, causing you to only see a select group of Easy Setups available to you. Or, during the AJA driver installation, you only chose Basic for Easy Setup installation and not any of the additional Easy Setups provided as optional installs. If this is the case, you can run the AJA driver installer again, deselect the driver and Basic Easy Setups and elect to install the Additional Easy Setups. Information regarding this can be found in the KONA operation manual.

If you need further assistance, you can contact AJA Technical Support, Monday through Friday during regular business hours 9am to 5pm PST.

--
AJA Video Systems
+1 (530) 274-2048 Intl.
(800) 251-4224 US
sales@aja.com


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Thomas Miller
Re: Using Kona LHe for DVCPro HD
on Mar 20, 2011 at 2:38:10 am

Downloaded it and working great - thank you.

Tom Miller
Big Pictures Media
Denver, Colorado

http://www.BigPicturesMedia.com


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Thomas Miller
Re: Using Kona LHe for DVCPro HD
on Mar 20, 2011 at 2:37:16 am

You guys have a fantastic service group by the way. Used it many times - amazing in this day and age to have such good response!

Tom Miller
Big Pictures Media
Denver, Colorado

http://www.BigPicturesMedia.com


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Thomas Miller
Re: Using Kona LHe for DVCPro HD
on Mar 20, 2011 at 3:30:55 am

Okay, here is another rub to throw into my mix. After digitizing with the above configuration, I check the footage and the audio seems to be leading the video by two seconds or so. So if someone is hitting a golf ball, you here the impact before you see it. I'm hoping this is a playback issue and not a capture/digitizing issue. Understand I am using HD-SDI out of the deck into the Kona LHe, and then into the system. Digitizing into DVCPRO HD with Final Cut. On playback, I am playing the video out through teh computer monitor, and the audio out through line out of the computer - NOT through Kona. I also tried playing a clip through Quicktime, still off by two seconds or so - with audio leading video. i'm going to go through all the troubleshooting, but wondering if anyone had encountered this and what it might be.

Tom Miller
Big Pictures Media
Denver, Colorado

http://www.BigPicturesMedia.com


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AJA Sales Department
Re: Using Kona LHe for DVCPro HD
on Mar 21, 2011 at 11:33:01 pm

I would suggest contacting AJA Technical Support for assistance. Based on your description it's possible that the PCIe slot for the KONA LHe card is operating at lower than needed speed or the KONA LHe is not placed in the optimal slot for performance. A guide to PCIe slot placement can be found on the AJA website at:
http://www.aja.com/support/kona/kona-system-configuration.php

Again, please don't hesitate to contact AJA Technical Support for assistance.

--
AJA Video Systems
+1 (530) 274-2048 Intl.
(800) 251-4224 US
sales@aja.com


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Thomas Miller
Re: Using Kona LHe for DVCPro HD
on Mar 21, 2011 at 11:42:09 pm

Sorry, I should have reported back as resolved. It turns out it wasn't a system problem at all, but the way a few of the tapes were shot with a Protracer system that affected sync in the field. All is good!

Tom Miller
Big Pictures Media
Denver, Colorado

http://www.BigPicturesMedia.com


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Chad Tingle
Re: Using Kona LHe for DVCPro HD
on Mar 20, 2011 at 2:07:38 am

[Thomas Miller] "

On a side note, which is better quality? The 8 or 10-bit uncompressed or the DVCPRO?"


uncompressed is higher quality than DVCPROHD and requires a lot faster raid and through put. The highest quality you can achieve is uncompressed 10 bit. I would just listen to the client and give them the DVCPROHD. It's a compressed codec but it's great codec. Especially if you don't have the fastest computer on the planet. While I do agree with you about pro res I've learned that when the client ask for something specific just give it to them. Double check to see if it's 1080 or 720, then make sure you're capturing the right frame rate. It will come in as 23.98 (24p) or 59.94(same as 30fps) for progressive and 29.97 for interlaced.




Chad Tingle
Producer/Editor


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