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Audio drifting out of sync
I’m new to Premiere Pro having recently converted from Final Cut Pro. I have a half hour documentary edited in 4 segments- Quicktime files, H264, 720P. I want to lay them on the timeline and play the entire show out to tape (actually XDCAM Disk). I really start to see the audio drifting out of sync about halfway through the program, and it continues to get worse. Does anyone know what is going on? I’d like to Print to Tape, as in FCP, but I can’t find that command. I’m playing it out of the timeline at full resolution. Is there a better workflow?
My computer is a Mac Pro, OS 10.7.5, and I’m running Premiere Pro CC 7.0.1. Thanks.
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9 Replies
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Hi Mitch,
Is the media playing off a dedicated media drive?Thanks,
KevinKevin Monahan
Social Support Lead
Adobe After Effects
Adobe Premiere Pro
Adobe Systems, Inc.
Follow Me on Twitter! -
Yes, we have a Terrablock server connected by fiber to the edit bays.
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Hi MItch,
What about the source footage? Does the source footage match the sequence settings precisely? Does any of the source video have a variable frame rate (common in iPhone H.264 files)?Thanks,
KevinKevin Monahan
Social Support Lead
Adobe After Effects
Adobe Premiere Pro
Adobe Systems, Inc.
Follow Me on Twitter! -
I received the files from a post house, so they don’t have a variable frame rate like an iPhone. They edited the show and sent us the .mov’s. I started by dragging segment 1 to the new item icon to create the sequence and then I added the remaining 3 segments. I am exporting through a Matrox MXO LE, but the files appear out of sync even on my computer monitor not just on my broadcast monitors.
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Mitch, when you imported the files, did you allow premiere the time
it needed to conform all the files, before you began editing?
(in the lower right below the volume level guages)It’s important to do nothing until that completes.
doing so can result in out of sync audio.
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I don’t know if I did. I’m used to jumping right in aka FCP. Also, I’ve been looking at the Audio Sample Rate. The clips came in at 44100hz. The sample rate is correct when I check my sequences settings, but can I trust that Premiere Pro adjusted it correctly? I’ll try to reimport the clips and make sure it has time to conform.
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Well, I just re-imported the footage, and I never saw Premiere Pro conform the files. Does it always do that?
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it does.
part of the process to make editing possible with any type of footage
without having to transcode. -
Matrox + h.264 nearly always gave me sync problems. To the point I turfed the whole set-up and just went native.
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