A moment of sanity please. FCP will output a digital stereo file at exactly the same level as the data on the file if it is panned L-R and the level is left a zero. I have measured this to an accuracy of .1db If the meters are showing clipping on a file mastered for CD, I am not actually surprised.
Meters can be calibrated to display clipping when a single digital word goes to zero. I suspect FCP is doing just that but don’t panic. It is done to warn operators of danger territory. Most pro meters are calibrated to show clipping when five words in a row do the same. I had a DAT machine that would constantly show clipping when other digital meters didn’t.
On the issue of broadcast levels, there have been heaps of posts that I have made about those so a search will answer all questions. I agree with Carsten that unless it is for broadcast no changes to the levels should be made.
To answer Larry Asbell’s concern – no FCP doesn’t drop levels -12db on capture. It captures at unity. The reason there is +12db gain is that location sound is often recorded very low and one of the most common threads here is how to make it louder than +12db