Glitches in HD Video
Posted: Sun Aug 30, 2009 11:00 am
Hi all-
I have some footage captured on a Canon HG20- a lower end 1 chip HD cam- and upon uploading to the S4000, there is an obvious sync issue with audio/video. In addition, some glitches/artifacts are apparent- typically with motion- that are not apparent at all while watching feedback on the camera monitor.
My questions are:
1) I know I can manually correct the audio/video sync issue, but my objective is not just to solve the issue, it's to understand why is it happening in the first place? The HG20 is AVCHD, not sure if that is causing issues or not. I currently have the 2.3d Bogart OS. HAs anyone else experienced this problem?
2) I am pretty sure that with all HD cams, probably the lower end models in particular like the one I shot footage on, there may be glitches/artifacts with motion. But my objective is to ensure that the glitches/artifacts are not the product of the S4000 or the manner in which I have uploaded footage (or anything else I may not be thinking of). Is it logical that the footage is flawless on the camera monitor and problematic upon uploading to the S4000? If not, then I want to eliminate the problem before I export to tape or DVD. And the amount of motion is minimal in which the artifacts appear. I would have to believe if the camera is THAT sensitive to motion that I would have read about it in reviews of the camera online which do not cite such a shortcoming. The monitor in which I edit on is NOT HD - in other words, my connection from the S4000 to the monitor is not DVI/DVI or DVI/HDMI. This wouldn't result in seeing glitches/artifacts on screen, would it? I wouldn't think so, but I'm trying to think of any reason why the footage is flawless on the camera and glitchy/artifacty after uploading to the S4000. And I would be surprised if it can entirely be attributed to camera motion, but I could be wrong.
3) I uploaded footage from the camera to the S4000 via a USB port simply b/c this particular camera has no firewire connection. USB will preserve HD quality, correct? Like firewire, there should be no degradation in quality, correct?
4) I am pretty sure I know the answer to this one, but just want to confirm: if I upload AVCHD footage to the S4000, can I then export it to miniDV tape?
I have some footage captured on a Canon HG20- a lower end 1 chip HD cam- and upon uploading to the S4000, there is an obvious sync issue with audio/video. In addition, some glitches/artifacts are apparent- typically with motion- that are not apparent at all while watching feedback on the camera monitor.
My questions are:
1) I know I can manually correct the audio/video sync issue, but my objective is not just to solve the issue, it's to understand why is it happening in the first place? The HG20 is AVCHD, not sure if that is causing issues or not. I currently have the 2.3d Bogart OS. HAs anyone else experienced this problem?
2) I am pretty sure that with all HD cams, probably the lower end models in particular like the one I shot footage on, there may be glitches/artifacts with motion. But my objective is to ensure that the glitches/artifacts are not the product of the S4000 or the manner in which I have uploaded footage (or anything else I may not be thinking of). Is it logical that the footage is flawless on the camera monitor and problematic upon uploading to the S4000? If not, then I want to eliminate the problem before I export to tape or DVD. And the amount of motion is minimal in which the artifacts appear. I would have to believe if the camera is THAT sensitive to motion that I would have read about it in reviews of the camera online which do not cite such a shortcoming. The monitor in which I edit on is NOT HD - in other words, my connection from the S4000 to the monitor is not DVI/DVI or DVI/HDMI. This wouldn't result in seeing glitches/artifacts on screen, would it? I wouldn't think so, but I'm trying to think of any reason why the footage is flawless on the camera and glitchy/artifacty after uploading to the S4000. And I would be surprised if it can entirely be attributed to camera motion, but I could be wrong.
3) I uploaded footage from the camera to the S4000 via a USB port simply b/c this particular camera has no firewire connection. USB will preserve HD quality, correct? Like firewire, there should be no degradation in quality, correct?
4) I am pretty sure I know the answer to this one, but just want to confirm: if I upload AVCHD footage to the S4000, can I then export it to miniDV tape?