so could adobe adition do the trick?You kinda can with Audacity. I've tried Screaming Bee but it doesn't work how I want it too. Well, the free version anyway.
what do you mean by post and pre-production?Is this for post-production or pre-production?
not live, so adding it to something after its recorded.Do you want to add it after you have recorded audio or during recording audio? As if it is live.