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D5 Tape Using HD SDI Card
We have a D5 Master Tape that we are looking to digitize, probably using an HD SDI Card to do so. I have never done this before, so I apologize if my inquiry seems a bit naive.
We need to digitize all HD footage for use with FCP but maintain the quality. I was hoping someone may be able to tell me through what settings I need to capture and approximately how much hard drive space I would need per minute of footage.
Thanks in advance.
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5 Replies
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You are asking quite a bit. First you need a video I/O device that works with HD-SDI either a card like a Kona3 or Decklink HD or firewire like an AJA IOHD. Which one is right for you is a thread in itself.
You need to find out what level of quality your deliverables require because there is a huge bandwidth difference between ProRes and 10bit Uncompressed.
Bandwidth capacity is much more critical than storage capacity when it comes to media drives. What good is having 5TB if it drops frames. Your bandwidth requirements are dictated by the previous quality question. But there is a widget from digital heaven called video space that will calculate storage space for you.
Matt
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You’ll also need to know what frame rate and frame size is on the D5. That will make a really big difference in your storage needs. 720/24P is a big difference from 1080/60i when it comes to storage.
So what’s one the tape?
-Russ
Russell Lasson
Kaleidoscope Pictures
Provo, UT -
Thank you for your reply. Again, apolgies for the broad nature of the question – I have some experience w/editing but on a much more “consumer level scale.”
How would I go about determining what quality is “required” of the deliverables? Technically, this is a personal project, so we are not answering to a client. However, the final product should be suitable for DVD release and public, HD level exhibtion. I would just say “best quality” but, that again, is probably too broad.
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Russell,
Much thanks. We’re looking at 1080i and 29.97.
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The quality question is something only you can answer by testing. Is the difference between ProRes HQ and uncompressed worth the bandwidth hit. ProRes HQ is being used for broadcast HD so it’s no slouch. It’s the HD exhibition needs that I’d focus on. If it looks good projected it will look good on DVD. To give you a frame of reference for 1080 29.97 ProRes HQ is about 30MB/s per stream needing about 100GB/hr and 10bit 4:2:2 uncompressed is about 150 MB/s per stream needing about 550 GB/hr.
Matt
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