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- This topic has 4 replies, 1 voice, and was last updated 14 years, 11 months ago by Anonymous.
May 23, 2006 at 7:49 PM #43421AnonymousInactive
I shot some footage in HDV with my HVR-A1U and just got Adobe Premiere pro 2.0 for the native HDV editing. When i dropped one of the videos onto the timeline and played it, the audio was about 1/2 sec off. I checked the source files and the audio was just fine there. Also I exported one of the movies from premiere to see if my computer was just lagging during playback and the audio was still off. Does anyone have any idea why this would happen?
Im running Adobe Premiere pro 2 using the native HDV editing with a 4 drive RAID hd and an AMD X2 3800.
May 24, 2006 at 11:23 AM #182300AnonymousInactive
Did you use a scratch disk set-up where you told PP to capture the video to one drive and the audio to a different drive? I’m not real sure but there could be such a thing that your PC’s HD is having a hard time keeping up when previewing both the audio and video thus creating a lag.
If you have two sets of RAID drives, tell PP to capture the video to one drive and the audio to the other. Then when you drop your clip on the timeline, see if that makes any difference.
If you DID do that, then it almost sounds like your PC is laboring to meet the task of previewing both the HD video and audio together. Your are trying to preview rendered files on the timeline… right?
May 25, 2006 at 3:25 PM #182301AnonymousInactive
If you have two sets of RAID drives
I actually only have 1 RAID but I have 4 hard drives feeding it. Sorry if i was vague. But yes I captured the audio and video on the same drive. I thought it was just my computer lagging too, but when i played the raw .avi in windows media player the audio was in sync and the video played just fine. And yes, on the timeline i was viewing rendered files.
May 26, 2006 at 7:26 AM #182302AnonymousInactive
At this point I wont be much help because Im not using HD. The only thing that hits me is that it kind of sounds like maybe a frame rate setting, a codec issue or maybe it may even have to do with how Premiere Pro and your graphics card get along.
Mind you that I dont know how you set up the scratch disks nor do I know anything about how your system is set up but in the future, I have to think that you would want your comformed audio files on one drive and your video preview files on the other so that your HDs arent working so hard thus maybe causing the delay.
The reason I say this is that you mentioned that your source AVI file plays fine which could be because the audio and video are still all together and unmolested. Now when you are in Premiere Pro AND youre working with this AVI file on the timeline, you arent really working with that actual AVI file directly. Youre actually working with the special video preview and conformed audio files that PP has modified and created from your original AVI file. The reason it does this is so its easier for PP to handle everything that is thrown at it. You see you have to keep in mind that its to demanding for PP to edit a (.MOV) a (.WMV) a (.MPG) along with a (.WAV) and a (.MP3) at the same time on the same timeline in their native form because of all of the different codecs involved for playing each format. To solve that, it conforms or changes everything to the same format or language (sort-of speak) that PP uses so it runs smoother during editing and so that it fits the parameters you set for how you want your finished project to end up.
I could be smoking but that almost seems like why this could be happening to you.
May 26, 2006 at 2:09 PM #182303AnonymousInactive
Thanks for all the info RAM. I think ill try putting the audio on a separate HD and see how that works. If anyone else out there has any other suggestions, Id be glad to hear them.
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