Q: Final settings for audio

AIFF linear PCM at 48khz/16 bit.

x

nice even tone?  That requires some personal attention setting levels with the correct dynamic range and adjusting eq to taste.

You can automate the process to an extent using a compressor/limiter filter in fcp or soundtrack pro but you really have to listen on good speakers to make a judgement.  And for that matter, listening to it on a variety of speakers that reflect how it'll be listened to by end users, is also important.

Here's a link to a user tip about using the compressor/limiter filter

https://discussions.apple.com/docs/DOC-2871