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Framerate issues in AVID
I am working in Avid 2.7 on PC. I am working with footage shot from and XD cam at 1440×1080 60i. I also have some outside footage that was shot on film and converted to 1080i at 24p. I am editin these footages in the same sequesnce and it looks pretty good. But when I go to export a quicktime file wither in H.264 or Animation I get some stobing effects and stepping in the video, mostly in the 24p stuff. Is there any workaround to this, or is there a good way to work with different framerates in one sequence? Any info is appreciated.
-Ian
Ian Lautsch
Multimedia Specialist
http://www.lautschdesigns.com -
4 Replies
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You cant have mixed frame rates in an Avid project (yet). Since you didn’t say, I’ll guess you are working in a 1080/59.94i project. How did you get the film based material into the system?
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We took the footage and had it converted by a post house. I believe the sequences are 30i and we inported the MXF files that under that setting. I switched to the 1080/59.94i HDV setting after the fact and it didn’t seem to do anything except cut out our TV monitor. The thing is I am the 3rd editor on this project and everything is all over the place. I am the one who has been choosen to sort it all out….fun right? Our avids are set up for standard def editing and I thought we weren’t HD compatible, but then got the footage to import via MXF file. I’m not really sure if that mean we are editing in true HDV or not? Also I did an export “same as source” it gave me a standard def 16:9 quicktime file.
Ian Lautsch
Multimedia Specialist
http://www.lautschdesigns.com -
There is no such thing as an HD or SD Avid anymore as the software is capable of both. External hardware (I/O boxes) can be HD or SD. Mojo was SD, Adrenaline could be brought up to HD with an extra board. The newer DX stuff is all HD capable.
As for your strobing issue. Since it is happening on exported files, my guess would be wrong field order. If you have different codecs in your timeline, they could have different field order which will become a problem on export.
Here is a great article that explains field order. https://www.dvmp.co.uk/digital-video.htm
Terence Curren
http://www.alphadogs.tv
http://www.digitalservicestation.com
Burbank,Ca -
OK so Avid software is HDV compatible. We are running SD Adrenaline 2.7.7.
We have XD cam files that are imported and we are editing with. The files are MXF. As far as I can tell, they are HDV in the sequences, but I am not 100% sure of this. As it turns out the film footage was converted to SD files. Why, I am not sure. I think we originally thought that our systems wouldn’t work with HDV files at all. But all these files are going into the same sequence and are editing together and playing ok.
Everything actually looks pretty good via QT H.264 export. But once it gets converted to flash and uploaded to the web it has all sorts of problems, stobbing, and skipping, delayed runtimes. But videos converted to flash from this companys inhouse video guy plays great. That is actually where we go the film footage from. A post house is converting the files to flash, and that could be an issue too. But they say there are using the same file formats as they always have for this site. Hmmmm…frustrating.
Ian Lautsch
Multimedia Specialist
http://www.lautschdesigns.com
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