10 bit uncompressed problems

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ClaireTall
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Joined: Jan 28 2004

A regular client arrived with a hard drive with the above mentioned file type and wanted us to make an NTSC DVD. The Apple crashed during the render but we manage to do it a second time. How ever in places the final DVD was poor quality although she accepted it.

She also had a PAL MPEG2 file made by the studio that did the orginal editing which I tried to make a basic DVD of in Edius as the Apple had made an awful one. I had the same problem with jerky movement in places.

Could the original 10 bit file have been corrupt or are we missing something here?

I should add that there was no point whatsoever in editing the original in 10 bit as it was from a PD170.

I need to buy an Apple capable of handling these files with SDI out as are starting to get a few requests. Any suggestions as to what I need, not for editing but just to be able to get the files onto Digibeta, is there a card that outputs the SDI stream and controls the Digibeta like Eduis does. I did email Dreamtek but got no reply.

Thanks guys.

Studio with green screen for hire near Gatwick Airport.
Kit hire facilities on site.
excelsiorstudios.co.uk

Chrome
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Joined: May 26 1999

Claire,

I think you need a Blackmagic HD Extreme Card. This will allow you to import SD and HD SDI and capture and edit true 10-bit as well as control Digital Betacamâ„¢ and many other decks.

If you don't need analog compatibility, and want digital card, that has higher 4:4:4 SDI quality, then DeckLink HD Pro is the one. DeckLink HD Pro supports dual link SDI, so you can work natively in 4:4:4 10 bit.

ClaireTall
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Joined: Jan 28 2004

Thanks Chrome, any recommendations for somewhere to buy a system ready to go that doesn't charge the earth for fitting and checking it. I assume that we are going to need a lot of RAM.

Studio with green screen for hire near Gatwick Airport.
Kit hire facilities on site.
excelsiorstudios.co.uk

Alan Roberts
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Joined: May 3 1999

S'right, you need Black Magic. It ain't cheap, but it does the job.

Get my test cards document, and cards for 625, 525, 720 and 1080. Thanks to Gavin Gration for hosting them.
Camera settings documents are held by Daniel Browning and at the EBU
My book, 'Circles of Confusion' is available here.
Also EBU Tech.3335 tells how to test cameras, and R.118 tells how to use the results.

simond83
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Joined: Sep 5 1999

What about AJA?

PaulD
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Joined: Aug 31 2002

Hi
The AJA Kona cards are like the BlackMagic Decklink cards, and do an excellent job.
but, 10 bit uncompressed footage needs a RAID array (SATA or SCSI not FW800) to be played out in real time to an SDI tape deck.

And Windows formatted hard drives arern't good to use with Final Cut Pro (or any other pro apps) as the software is designed to dovetail into HFS+ formatting for optimum performance.

For DV timelines, played out via SDI to DigiBeta I use an AJA Io, which being a FW device is transportable between Mac editing machines. It will work with 6 or 8-bit uncompressed footage, with the right hard drive array infrastructure.

If Compressor isn't giving good MPEG-2 encodes it isn't set right.

Alan Roberts
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Joined: May 3 1999

There's a nice AJA box to go on the end of FCP, that has every conceivable type of I/O connector on the back and some nice monitoring on the front, now being considered as part of FCS.

Get my test cards document, and cards for 625, 525, 720 and 1080. Thanks to Gavin Gration for hosting them.
Camera settings documents are held by Daniel Browning and at the EBU
My book, 'Circles of Confusion' is available here.
Also EBU Tech.3335 tells how to test cameras, and R.118 tells how to use the results.

StevenBagley
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Joined: Aug 14 2000
PaulD wrote:
Hi
The AJA Kona cards are like the BlackMagic Decklink cards, and do an excellent job.
but, 10 bit uncompressed footage needs a RAID array (SATA or SCSI not FW800) to be played out in real time to an SDI tape deck.

Interestingly, more modern SATA drives are getting to the speed where they can sustatin at least one stream of uncompressed video, although the price is such that you'd want to RAID them (even if just internally) so you get optimum performance.

I've also found that Lacie's 1TB FW800 raid will work for uncompressed 10bit SD capture and playout.

Steven