Annoying audio to video offset in preview window

Lalaith · Post by **Lalaith** » Thu Mar 30, 2006 5:37 am

Whenever I try to watch an edited DV project in the preview window of MS6, I notice that after a few seconds the image will begin to drag behind the sound. Setting the Audio-Video Interleave option does not help, alas, nor does installing a different codec (tried with Microsoft, MainConcept and Panasonic codecs: They all display the same offset behaviour). The problem does not occur when I use the Fast Preview, but then I cannot observe the FX effects, overlaid titles etc. This problem is very inconvenient when I want to cut scenes according to the music, so what can I do? I do not think the graphics card is the problem since I observe it on two very different computers; however, once it suddenly vanished after I had additionally installed the Panasonic DV2 codec but I did not manage to reproduce the change on the other computer.

What can I do? Is the solution hidden somewhere in the settings of MS6?

- Lalaith

heinz-oz · Post by **heinz-oz** » Thu Mar 30, 2006 7:33 am

What is the source material? Mpeg2, DivX?? I have never experienced that with DV AVI and also never during preview.

How do you get your footage into the PC?

Gorf · Post by **Gorf** » Fri Mar 31, 2006 4:41 pm

I don't think there's anything that you can do, but I also don't think it's an issue worth worrying about. Preview is designed really to watch segments of video to see how they will hold together in the final edit.

You'll notice that the delay happens with each clip edge. You won't notice it with just one, but each one adds a little delay.

To show what I mean, put a fairly long (10 minutes or more) DV clip on the timeline.You can preview it from start to end, no lag. Then hold down the S key and chop the clip into bits. No filters, transitions etc - just cuts. Preview it now, and the lag will get progressively worse.

If, during preview, the lag gets annoying - just press {Esc} to stop and {Space} to resume from the current position. Repeat as necessary.

Lalaith · Post by **Lalaith** » Mon Apr 03, 2006 4:16 pm

heinz-oz wrote:What is the source material? Mpeg2, DivX?? I have never experienced that with DV AVI and also never during preview.

How do you get your footage into the PC?

The source material is DV1 that I import via firewire directly from the camera. I did notice that once the installation of another, different software removed the problem though the preview rendering was somewhat slower then than it used to be. So the problem certainly is removable but I cannot reproduce what happened then.

- Lalaith