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Synching Audio and Video
I have an AVI file with no audio and a WAV file with the audio I want, but I can’t figure out a way to match the audio to the video since I can’t edit precisely enough. I can only edit in frame-by-frame time and that’s not specific enough. Short of getting an audio editing program and trying to “guess” the right start and end times for a new WAV file is there anything I can do within Premiere to help match these up?
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3 Replies
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You can change the Premiere Pro timeline to audio units and sync down to the sample level.
But there are no tools in Premiere to work out where two independent files should be placed to give visual sync to an audio track. That you will have to do by eye using whatever clues you can find in the footage and audio.
If you have a bad soundtrack with your video, life becomes much easier because you can play the external good audio in parallel with the bad audio on the timeline and adjust until the echo disappears, then disable the bad audio – or delete bad and link video to good audio.
Once you have established good sync, it is a wise precaution to place clip markers at the same point in both clips so that you can easily re-sync if you disturb anything later on.
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Good information, thanks. I think I should have specified that I’m using 6.5. Can I do it with that version? If so, do you know the steps to change the timeline to audio units? Thanks in advance.
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You can change the units for viewing an audio clip in its own clip window to samples/frames in Premiere 6.5, but even though it appears you can set the in point to closer than one frame, I remain to be convinced that the result is what you expect.
In this area, Premiere Pro offers a significant improvement.
If you can identify a start event on both audio and video, then you could perhaps try using a WAV editor like Goldwave (if you don’t have a suitable program already) to trim off a bit of the audio at a time to adjust tighter than a video frame. Goldwave will open AVI files, but only save in audio formats (eg WAV) – but it offers try before buy from http://www.goldwave.com.
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