Quote:
Originally Posted by Josh Z 
Without access to the raw data output by my player on a frame by frame basis, I'm not able to tell by eye whether the problem is a dropping of frames or a 3:2 pulldown cadence mismatch. But I can describe the problem for you.
The example in World Trade Center involves a static shot of a pedestrian walking from the left side of the screen to the right at a constant rate. At two points during his walk, his motion jerks forward unnaturally. The following shot is also static, of a car driving from the right side of the screen to the left. Again, its motion suddenly jerks forward unnaturally. The sound is not audibly interrupted or affected in either example.
Both examples are visible at standard 60hz frame rate playback, but made worse after frame rate conversion to 48hz by my video processor. I do not have this problem at either frame rate when using the HD-A1. I've also removed the video processor from the chain to eliminate that variable and the artifact is still present. I've set the HD-XA2 for output at 1080i, 1080p, and 720p, with absolutely no difference at any of those settings.
Whether you want to call this "judder", "stutter", or any other term of your liking, I don't really care. I just want it fixed.
Without access to the raw data output by my player on a frame by frame basis, I'm not able to tell by eye whether the problem is a dropping of frames or a 3:2 pulldown cadence mismatch. But I can describe the problem for you.
The example in World Trade Center involves a static shot of a pedestrian walking from the left side of the screen to the right at a constant rate. At two points during his walk, his motion jerks forward unnaturally. The following shot is also static, of a car driving from the right side of the screen to the left. Again, its motion suddenly jerks forward unnaturally. The sound is not audibly interrupted or affected in either example.
Both examples are visible at standard 60hz frame rate playback, but made worse after frame rate conversion to 48hz by my video processor. I do not have this problem at either frame rate when using the HD-A1. I've also removed the video processor from the chain to eliminate that variable and the artifact is still present. I've set the HD-XA2 for output at 1080i, 1080p, and 720p, with absolutely no difference at any of those settings.
Whether you want to call this "judder", "stutter", or any other term of your liking, I don't really care. I just want it fixed.
I have the A2, and don't see those problems at those timecodes in those films. Since it's not an XA2, I guess that doesn't mean much. Just some suggestions to try, though, I know they might cause some logistical problems, but just for argument's sake.
Have you tried running your A1 and XA2 directly into your display, bypassing your video processor? Is the symptom the same when doing this (just the XA2 having the issue)? It would be a good idea to eliminate the video processor from the equation, so you're sure it's not the culprit.
This sounds more like dropped frames than judder since you're not seeing the symptom on slow pans, but on static camera positions. The 3:2 pulldown judder drives me crazy, but my display can only do 60hz so I can't bump it to 48 or 72. I can give timecodes in some movies (I spoke with Darin and others about this) but these were "true judder" issues, the slow panning of the camera during the film. The Cinemotion setting of my SXRD does the pulldown as best it can, but it can only do so much.
Which video processor are you using, and how are you "locking" into the cadence? Are you locking with a 1:1 or 2:2 mode? (Not knowing your processor, I'm not sure if it has "lock" terminology like this for it, like the VP50) I'm wondering if your processor can handle the 1080i60 from the A1 but not the 1080p from your XA2. Doesn't make sense since you've posted that you've tried 1080i from both players. It wouldn't make sense otherwise, but I'll ask anyway...are we sure the XA2 is outputting 1080i60 when it's in interlaced mode?
I know how frustrating problems like this can be. When the picture from HD DVD is usually so stunning, things like this can ruin the experience. My next display can handle 1080p24 so I'll be getting an Anthem to handle all hardware to date for my video equipment (Oppo, A1, A2 and cablebox) but my future players will all be able to do 1080p24.
