NTSC_TV wrote:
I know for one, I can't export audio at the 384 kbps as FCPX / Compressor can only export at a max of 192, or am I wrong?
Compressor can be set to export audio at 320 kbps max as long as your sample rate is set to at least 44.1 khz or higher. 48khz is typically used. We have used Sorensen Squeeze (no longer available unless you have previously purchased it) in the past to export at 384 kbps.
If your source audio file is at 384 kbps you can enable "Audio pass through" in Compressor to send it out unmodified.