Blocky/Digital Noise during capture

[r]Evolution wrote on 7/23/2004, 3:18 PM
We used 3 different MiniDV Cams to capture a RolePlay & Lecture session. 2 were Sony consumer cams & 1 was a TRV-900. We captured using VEGAS 5b and a Sony DSR-11 DVCam deck via firewire. The cameras were recording on LP with 60 min Maxell tapes.

After capture when I brought the Vids onto the timeline I noticed that periodically there is Digital Noise/Blockiness that appears every now and then. This Digital Noise/Blockiness was also present on my final DVD. I did not see any of this Digital Noise/Blockiness during my capture preview so I'm baffled as to how, when, or where it was introduced. It is also not present when I just play back the tapes in the cameras. Does this sound like I just need to clean the heads of all 3 camera's? or Does this sound like a problem with recording in LP? or Does this sound like a problem stemming somewhere from capture?

I use this same Capture/Editing technique multiple times a day. Usually using miniDV or DVCam recorded at SP. <-- this is why I am wondering if it is because we recorded on LP.

Has anyone ever experienced 'Digital Noise' or Blockiness like this?


Comments

[r]Evolution wrote on 7/27/2004, 4:29 PM
bump.


sorry!
craftech wrote on 7/27/2004, 4:46 PM
Assuming Vegas 5 capture is like Vegas 4, try setting preview window to none and dynamic ram preview to zero as well. Have you tried a tape head cleaner and a recapture?
[r]Evolution wrote on 8/10/2004, 12:56 AM
We recently captured the same footage into an Avid Media Composer & Premiere Pro using the same deck and capture setup. No blockiness found. We then shifted back to VEGAS and recaptured... blockiness. It' s not in the same place nor does it last the same length(s) of time, but it still exists.

http://mediasoftware.sonypictures.com/forums/ShowMessage.asp?MessageID=307220&Replies=0&Page=1

It appears that this thread has been started asking nearly the same thing.
Liam_Vegas wrote on 8/10/2004, 1:26 AM
I have seen this happen with LP recorded tapes. If you capture using the original camera you will likely find it works ok. This is one of the "issues" with using LP mode in that it makes the tapes "less compatible" with decks and other cameras.

I occasionally capture using LP mode for a few projects and occasionally I forget and capture using a different camera. Without fail it looks fine in the preview while capturing but afterwards the file is "blocky" in parts just like you describe.
JasonMurray wrote on 8/10/2004, 2:28 AM
I ran into this "issue" myself the other day. Didn't believe it existed until then!

Solution, indeed - cap the tape on the camera it was recorded.
[r]Evolution wrote on 8/16/2004, 6:19 PM
Seems to be true! I just captured today using the camera that we recorded on and... wholla! It's as beautiful as ever. Thanks guys. Hopefully no more recording on LP and when I do I now know to capture using the same camera.

Thanks!!!