Posted By Ron Surtees on 08 Jun 2010 11:55 PM
I am looking at the purchase of a DeckLink Studio or Decklink HD Extreme 3D video card. We already feed 3 cameras and two computers to five screens. With these cards can someone confirm that the delay to the projector from live cameras via either of these video cards, is no more than 1 frame?

Is your intent to run the vido signal into the computer, then use the internal key option to then send the video with text-overlay onto the projector? Or is it to use the external key option to run both color and key to a switcher?

If it is the first scenario, then I suggest that you contact Black Magic design and ask them what the delay time is for the pass-through video when using internal keying. If it is the second scenario, then there is no lag time associated with the DeckLink video card and the live feed.

I have installed this latest version on my preparation computer and find that the Pan/Zoom feature is really disconcerting on the next slide displays as it seems to jump around so much that it takes your attention off the program. this will have to be fixed before I can use it for presentation. I was happy to see that the June 2 edition fixed the other problem with Pan/Zoom because I went live on that before I realised there was a problem.

Blessings

Rick

I tried to duplicate the behavior you described with the pan and zoom and was unable to.  From what you described, I assume you are playing a slideshow with pan and zoom applied and you are seeing the bad behavior in one or more of the preview pane windows - is that correct?

I also tried P&Z on a song background with single and multiple paths and loop - still no bad behavior.

You seemed to indicate that the behavior changed from a previous build to the 6/9 build. Please elaborate on what you are doing, how it was behaving before and what has changed.  If possible contact the support team so that they can take a look at your issue.

Hi George,

Sorry I didn't get back to you but I was trying the 22 June version hoping the problem may have been resolved in that edition but ran into other troubles with Quickverse Bibles not being visible. Now this is resolved I tried building a program with this 22 June edition but I have the same result with Pan/Zoom in the Current and Next Preview Pane windows.

I have a photo as background image to a song and have set Pan/Zoom to auto & loop with 75s, min=1x and max=2x and the preview panes are very jerky in the display of the pan/zoom so it is distracting for an operator. Really bad if you have both Current and Next jumping around at the same time.

So I don't think I can apply the June 22 upgrade to our Projection system either.

Thanks

Rick

I was able to duplicate the behavior that you are describing.  Once you indicated what your settings were it was easy to duplicate.  This appears to be tied to the combination of the 'auto' and 'loop' settings - if you select something other than auto or loop (but not together) it does not appear to behave the way you described.  The auto may not be what you want anyway as it randomly selects settings each time the item is presented.  Given the settings that you have listed, you should get acceptable behavior if you select either single or multiple rather than auto for the path setting.

Just FYI.. I used Pan and Zoom this weekend from within a slide show for a couple of pictures.
It did not work correctly on very large (straight off of the camera) pictures. It did work fine on a picture that I resized earlier to the native resolution of my display monitor (i.e., 1024x768).   I do not know for sure that the size was the problem; but in the past (working on an under-powered machine) I found I always had much better results with appropriate sized graphiics. And it makes sence, there is a lot more work for the computer to do if it is working with a huge file.

I normally resize all large image files before using them; but I was handed a thumbdrive right before the service with pictures from VBS.