Why don't you just do all this audio work in Avid?

I used Sonic Fire which is in fact bundled with Avid Media Composer. Also, you have more control over the audio in Sonic Fire than you do in Avid. Sometimes I need to nudge audio files by miniscule amounts - obviously in Avid I can only do this by frames so if I am looking for a more accurate audio placement then I use a separate audio editor.

Hope this answers your question!

Thanks for sharing!