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AVID Xpress Pro producing choppy transport stream to HDV camera
I’ve got four 20 minute sequences that I’m outputting to my Sony HVR-V1U HDV camcorder. Everything goes fine until the fourth sequence and in the same place every time I try and re-try the video and audio break up horribly. I’ve tried both of my HDV cameras (same model) and I’ve tried different firewire cables but I still get the same thing on the fourth sequence. This same thing happened a month ago while trying to output a 30 minute sequence.
I’m running AVID Xpress Pro 5.8.4 (no MOJO) on a 24″ Intel iMac (2.33 GHZ w/3 GB of RAM) using OS 10.4.11. I’m also running Quicktime Pro 7.3.1
Has anyone heard of this sort of thing happening before and if so did you figure out a solution to prevent it. My first thought was that I had some 48khz audio but that didn’t make sense because it’s my understanding that my AVID software converts my audio to 48 anyway it shouldn’t matter how I shot it (the V1U defaults to 32 khz and has to be tricked into shooting 48khz). I’m puzzled and extremely frustrated.
Thanks in advance for any help!
John Brune, Fort Wayne, IN
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2 Replies
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Through my own tinkering I believe the solution to my problem lies with the camera I’m using. I’m currently testing a theory on setting the Sony HVR-V1U’s VCR settings to “HDV” instead of “Auto”. The owner’s manual is cryptic at best. I encountered huge stumbling blocks last year digitizing video into the AVID from this camera by not turning off the “i.link conv” function.
So far switching the VCR section strictly to “HDV” has eliminated several key problems. I’ve also had some good luck switching firewire cables, running the camera on just battery power, as well as importing my transport stream (m2t) and re-transcoding it as a second transport stream to “cleanse” it from corruption. Switching cameras didn’t seem to make a difference whatsoever,
But I’m convinced that the camera is my stumbling block because the file plays fine when importing the m2t back into AVID. Adding a simple color correction to the scenes that are dropping out (just to make the transport stream different than before) seems to help, too. I can’t find any troubleshooting info online about this camera–a great camera with a great lens–so I’m letting others out there who may be using this camera with an AVID know what I’m going through.
Operator error?–sure, why not–but Sony’s manual doesn’t make my life any easier. This camera does more than I can possibly appreciate.
John Brune
Fort Wayne, IN
steadicamjr@yahoo.com -
I have found that the camera settings didn’t matter. The video continued to drop out in the same places. So I changed the video files a little by color-correcting the shots that were causing the trouble. This has fixed everything. I re-transcoded the transport stream and it played to the camera flawlessly. I’m convinced that a camera setting I’m unfamiliar with is still the cause of my problems but I can’t figure out what it is at this time. The m2t files always import back into AVID flawlessly and play fine. Crazy.
Later cows!!
John Brune
Fort Wayne, IN
steadicamjr@yahoo.com
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