[Shane Chadder]

Mike

We use DVCPro25 into premiere via firewire. You don’t need another codec for Premiere, the built in DV codec will work fine. If you are using an “s” output you are degrading your signal while firewire makes a perfect copy.

Shane

[Shane Chadder]

The red line is normal, but if you are using a Black Magic NTSC/PAL timeline the effects will usually play real time.

I guess I’d begin by reinstalling quicktime, directx, Blackmagic drivers if you haven’t already done that. You migh also try diabling the onboard audio in case it is fighting with the BM audio. You might also update or change your SATA drivers as the pops seem to be happening during disk i/o.

Its a new problem for me but I use Decklink cards and not the Multibridge express.

Shane

[Shane Chadder]

If you find you need a delay box they can be had new for under $100 https://www.markertek.com/SearchProduct.asp?item=VP0010&off=9&sort=prod

Its best to put the delay on the reference of either the deck or the decklink (whichever shifts the right direction) rather than the signal.

Good luck
Shane

PS Bob
I’m guessing 50ft of cable will shift 1 pixel? 63ms per line / 720 pixels per line.

[Shane Chadder]

It might be a cable length problem. Are you genlocking the deck from the output of the Decklink card? If so be sure the cable length for the reference and the signal are the same.

The quickest fix for a sync problem is a delay box. Introduce delay on the deck ref. in until the shift is corrected. If the shift gets worse move the delay to the video in. If it is a small shift you can use video cable for the delay, 10ft is 15.5 nanoseconds.

If you think this is fun try timing an analog studio. I think this is why video engineers lose their hair.

[Shane Chadder]

I’m sure you know it is best to work in an 8 or 10 bit uncompressed timeline, even with DV material, so that effects render out uncompressed.

The problem is in a Blackmagic uncompressed timeline, DV clips play ok realtime, but any rendering reverses the fields. So if you add a name super the fields reverse for the duration of the super.

The only work around is to go through the timeline reversing fields for the duration of the effects before you print to tape.

But if you now want to export the whole timeline for a DVD or something anything DV has the fields reversed, so you have to rework the already completed timeline and reverse every DV clip.

The problem arises because it is 480 line DV clip on a 486 line timeline. I would think they should be able to solve this by positioning the clips up one line by default. They need to rethink this work flow as it causes us no end of greif.

If you work in a DV only timeline you are OK…unless you try and capture via the SDI in with the latest drivers which shift the frame right to include the sync bar…just a driver thing tho, they had it working right before.

[Shane Chadder]

Thanks for the information.

Any chance support will change with Premiere 2.0

[Shane Chadder]

So without spending an extra $3400 for prospect hd, the Xena HS does not functiong with Premiere?

[Shane Chadder]

Dan

We are finding some real issues with workflow and the Decklink cards. Some of the problems are real “bugs” ie the card not currently doing what it should, and others are problems with the way they’ve implemented the “real time” DV in Premiere NTSC. I suspect it is mostly drivers and I’m hopeful they get it sorted out soon.

If you work in all uncompressed or all DV it is an economical choice. If you try and mix it can become a nightmare.

re: Gigabit

You might be able to capture HDV over gigabit but not HD uncompressed. Decklinks don’t even monitor HDV (in windows), you have to uncompress your footage.

re: Your computer
It needs to be windows XP, not 2000. What software are you using?

What are you wanting to do?

[Shane Chadder]

Luke

I’m running into this bug to. ONLY in a DV timeline capturing SDI.

[Shane Chadder]

5.2.1 is fine so I guess the problem began with 5.2.2