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What are the 2 SDI inputs for?

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Devin Crane
What are the 2 SDI inputs for?
on Jul 7, 2007 at 5:54:10 pm

I saw on the IO HD that there are 2 SDI inputs on it along with TC input and output. Will it be able to ingest 2 channels at once as a recorder?


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Bob Zelin
Re: What are the 2 SDI inputs for?
on Jul 8, 2007 at 2:27:47 pm

input channel 1, and input channel 2. On Kona 2 and Kona 3 cards, these are for either dual link 4:4:4 input (which use 2 BNC), or channel 1 and channel 2 (2 different inputs) that are selected in the Kona control panel.

The Kona LHe does not have this.

Bob Zelin



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Devin Crane
Re: What are the 2 SDI inputs for?
on Jul 8, 2007 at 6:51:52 pm

Doesn't the IO HD only support 4:2:2? No 4:4:4


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Bob Zelin
Re: What are the 2 SDI inputs for?
on Jul 8, 2007 at 9:11:32 pm

you are correct, and I/O HD won't even do uncompressed HD. So input 1 and input 2 are TWO SEPERATE INPUTS - for 2 different VTR's.

Since I never deal with 4:4:4, in the past, I would have a HD VTR go into a Kona 3 input 1, and have an AJA I/O SDI output go into input 2, and use the Kona Control Panel to select between the 2 inputs.

Bob Zelin


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Russell Lasson
Re: What are the 2 SDI inputs for?
on Jul 10, 2007 at 5:58:57 pm

It could be possible that they are future proofing the IOHD incase Apple develops ProRes444 someday. That way it could still connect to dual-link devices.

Just a thought.

-Russ


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