FCP Audio Problem-weird delay

[Matt Campbell]

Rafael, review John and Dave’s posts above. This worked for me. I’ve also found a short YouTube vid that helps explain it below. The mixdown feature has helped tremendously for me, especially when you have loads of audio tracks. Not to mention the comment about trash old render files with the render manager tool.

The mixdown just takes the load of your processor. So even though you might have, for ex., 12 audio tracks, when you do a mixdown, it essentially is mixing that down to 2, without visually or destructively doing so. Its like rendering your video for playback. check this link.

https://www.youtube.com/watch?v=9rKYoMhBG4g

OS 10.6.7, Mac Pro 2 x 3 ghz quad-core intel xenon, 4 gb ram and AJA IoHD

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[Simon Bergman vázquez]

I have found a solution, change the sound files one by one, to the original one. If you try to relink the media, it doesnt fix the problem.
I have also noted that the timecodes of some of the clips (random ones) were wrong on the problematic sound files.

But by replacing the files with the original sound files the problem is solved.

I havnt found any automatic way to fix this problem.
Apparently it is a problem with how fcp interprets the sound files.