FCP doesn’t have the greatest audio functionality. You might first try the graphic eq in the audio filters tab. Then experiment by pulling down first higher frequencies above 8 to 10 kHZ and see if that helps. The other range of freqs to play with are lower freqs – under 200kHz. See if that helps. Maybe the studio mic is “hearing” more highs or lows compared to the location mic. Rolling off the high end will make the sound “duller.” Rolling off the bottom will make it sound “thinner.”
If the problem is truly the “sound” of the space there’s not much you can do even with a high-end system. It’s the same answer as when people ask how to remove too much “echo” or reverberation. AFAIK that can’t be done.
John
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