I created an approximately 3min music video in Premiere Pro CS3. The audio and video are perfectly synced when viewing on the timeline, however, when I export to an mp4 it is off by about 3 seconds.
I used a Sony Handy cam Standard Definition to shoot video footage, and imported the mp3 version of my song into the audio timeline, and lined it up to the clips perfectly.
I exported to an H264 file, and selected the Youtube preset. I changed the frame to 640x480, with NTSC, 29.7fps, 3.0 Level. I set the Audio at AAC, 128kps sound. MP4
I have done in this set in the past so I can have a good quality video for youtube upload, and never had a problem until now. The quality is good enough...but the audio is off sync.
Thanks for any help in advance!!
Thanks for your response. I took your advise, and created the audio as a .wav file and matched up on the timeline again. When I exported, I ended up with the same problem. Its about 2sec off.
Any other ideas? Also.. a friend suggested maybe because my computer is old, mayeb the processor is not handling it? It's strange though, because it has worked before.
Update: I just exported out if CS3 to an AVI and it plays perfect in Windows Media. It must have something to do with the export options im using for an mp4 for youtube??
Although I do I get a quick red flash in middle of video as well.
It is a Sony Handycam, which uses those little Dvd's. I actually just plug the camera into my computer via USB, and drop the .VOB files in from there. I then import to CS3. To add to further strangeness... After I exported as an .AVI, it plays perfectly synced on my computer. I upload it to Youtube and it will play perfect if you view it on Iphone, and a MAC ... but if you view it on PC, the words are slightly off sync.
I am not really sure what a dropped frame is.. but if it is where a little "red" screen appears for a millisecond, then yes...I have one quick flash of red.
A dropped frame (usually/only ???) occurs when you are playing a tape in a camera/deck and "something" (causes vary) happens to interrupt the flow of data down the Firewire connection... so a frame is not recorded
When you copy video from a DVD or memory card there is no way (that I know of) to drop anything... you are simply copying a file
Now... with a camera that records to mini-DVD, there MAY be the possibility of an interruption during the recording process... I don't use that kind of camera, so really don't know for sure if it is possible to have a recording interruption