Video plays faster than Audio
by Daniel Finley
on
Sep 15, 2009 at 4:49:10 pm
Hello, I've been wrestling with this for a while and can't figure it out. I'm hoping someone here can help.
I have imported footage from a client's DVDs into my Mac via DVDxDV as .mov files to be edited in FCP.
After being imported, all the videos play fine in Quicktime's stand alone player. The same videos play fine in FCP except for one.
This one file plays its audio at a normal speed but the video is playing about 20% faster, leaving the footage out of sync. I'm not sure why it would play fine in Quicktime but not in FCP.
Anyone have any thoughts as to what the problem might be? Each of these DVDs were produced by different independent short filmmakers. I wasn't involved with the productions but I'm assuming that they edited and authored the DVDs themselves.
Re: Video plays faster than Audio by Dave LaRonde on Sep 15, 2009 at 7:39:32 pm
It almost sounds like the duration of one of the tracks is shorter than the other.
Try this: duplicate a couple of copies of the clip in question, then use QT Pro to extract video on one, then audio on the other. Import them both into FCP and stick them in the timeline.
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
Re: Video plays faster than Audio by Brandt Krueger on Sep 16, 2009 at 2:16:46 pm
Hi all,
Having similar issues, and the extract method didn't seem to work for me. Clean install of SL and FCS3, bringing Uncompressed 8bit onto the timeline yields a faster video playback than the audio. When the video finishes before the clip length, it goes to black (while the audio catches up). Clips play fine in Quicktime X and Quicktime 7. Have tried various setups and compressors for sequence settings...
I have 100+ clips that were captured and play fine on another machine with Leopard and FCS2, but they all play back wonky on this FCP7 machine.
Any thoughts? Have I just missed the right target keywords in search and this is a common problem? This was the only post that seemed similar.
Re: Video plays faster than Audio by Dave LaRonde on Sep 16, 2009 at 3:06:55 pm
Sorry, I have absolutely NO answers for screwy-acting machines. If I were you, I'd start a new thread asking for help in troubleshooting your goofy machine.
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
Re: Video plays faster than Audio by Brandt Krueger on Sep 16, 2009 at 4:15:18 pm
Hi all,
Just in case someone else runs into this I was able to find a couple of other workarounds. I still don't have a good answer as to why it happened, but here's what I was able to discover with some continued fiddling.
It appears the "wonky" machine is actually the capture machine. It plays back fine on that one, but all others including the FCP7 machine I mentioned in the post as well as a FCP6 machine (so we know it's not an FCP7 issue) we get the increased video speed.
Fix 1: Despite the clip being captured at 29.97, changing the sequence settings to any other FPS before importing the clip puts things back in sync.
Fix 2: Use compressor or QT Pro to recompress to the exact same format. File now imports properly at 29.97 and is in synch.
