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Audio/Video sync problems – Newbie
Hello everyone. This is my first post on any video help forum, so apologies in advance if I screw up!
I am trying to learn how to use Premier Pro CS3, and though it is a very slow process for me -not being any kind of expert at anything video related – I’m really enjoying it. I do have one VERY frustrating problem which I can’t seem to figure out, or maybe I’m missing something really obvious. Here’s my problem:
I have a 3 minute long video, with an accompanying audio track (a pop song). Throughout the video I have placed a static image of a light flashing, in time with the beat of the musing (about a second apart). Now, when I preview this video in Premier, the ‘light’ I have added matches up perfectly with the beat of the music all the way through to the end of the video. My problem is that it seems no matter what video format I export the video to, when I play it back in any other video player (Windows Media Player, VLC, Powerdvd etc.) the sound seems to go out of sync with my added images. Even if I export as a full movie (FILE/EXPORT/MOVIE) that also gives me audio sync problems.
Is there some kind of setting I should be using to “lock” the audio to the video before exporting, or is it something else I’m doing wrong?
G.
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3 Replies
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What is the frame rate of your Project Settings, your source video and your export settings? They all should match.
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Thank you for the reply Mike.
My project frame rate settings are PAL/25fps, however the video I have imported (to add my light effect to) is 15fps. I am exporting at 25fps.
I was under the impression (probably mistakenly) that it did not matter what frame rate imported video was, that it would be converted somehow to match the current project fps settings. As I said previously, the whole video appears to play perfectly and in sync from within Premier itself.
Are you saying that for all future projects, if I ever want to add clips to my project, the fps of the imported clip must match the project settings? Surely this would create problems finding material. For instance, as I am UK based, my project settings are usually PAL, 25fps. What happens if I want to incorporate clips from a non-UK source, such as US NTSC 29.97 fps?
G.
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[Georgina Lord] “I have a 3 minute long video, with an accompanying audio track (a pop song”
You made too many assumptions from my questions. I have not figured out your problem yet. I suspect the issue might be with the audio track, which I assume is a separate file.
What are the properties of this audio clip? Is the sync problem far off (a frame or 2, or more? and is the error constant or does it increase over time.
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