Ok having given up on resulting PQ grounds of acquiring camcorder footage via a STB DVDR and then editing in VS9 I installed a PCI firewire card and started to import footage.
Can someone explain why if I import as AVI the sound goes progressively out of sync and at the end of an hour is a good 3 seconds out even on the preview screen? Hiowever if I import as DV I do not have this problem. Why is this? Whats the difference? I thought AVI was the natural no probs transfer format for DV camcorders?
DV or AVI
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Ron P.
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Hi Doverwhite,
AVI is 1). considered a wrapper and could contain high compression formats such as Xvid, and DivX. However since your footage came from a camcorder I don't believe that to be the case. The AVI would then be full uncompressed video, which takes up about 65 gig per hour.
DV is the natural no problem transfer. It is a slightly compressed, lossless format, and only takes about 13 gig per hour. Then you have Type-1 and Type-2. The preferred and most recommended is Type-1.
So I'm guessing that your out-of-sync has to do with the lack of computing power to handle editing such a large file, as AVI. Now I will also say that playing back the video in VS, the Preview is not going to be smooth. VS is trying to put everything together "on the fly", and it is not rendered. Do you have the out-of-sync issue on a burned DVD, or have you created DVD Folders and tried playing that with Power DVD, Windows Media, or WinDVD?
Ron P.
AVI is 1). considered a wrapper and could contain high compression formats such as Xvid, and DivX. However since your footage came from a camcorder I don't believe that to be the case. The AVI would then be full uncompressed video, which takes up about 65 gig per hour.
DV is the natural no problem transfer. It is a slightly compressed, lossless format, and only takes about 13 gig per hour. Then you have Type-1 and Type-2. The preferred and most recommended is Type-1.
So I'm guessing that your out-of-sync has to do with the lack of computing power to handle editing such a large file, as AVI. Now I will also say that playing back the video in VS, the Preview is not going to be smooth. VS is trying to put everything together "on the fly", and it is not rendered. Do you have the out-of-sync issue on a burned DVD, or have you created DVD Folders and tried playing that with Power DVD, Windows Media, or WinDVD?
Ron P.
Ron Petersen, Web Board Administrator
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Doverwhite
Many thanks for explanation DV looks OK so will progress with this. I doubt however that this is a PC capacity problem as am using 3.0GHz with over 200MB free SATA disc and 1GB RAM. Using this import has however raised another issue and a question which I will post separately if a search does not reveal any relevant threads.
Thanks again
Thanks again