Noise Reduction Help

[Emily5E4D]

Please help!!!!!!!

I'm working on a project and used noise reduction. I accidentally captured voices when using it and now have the "tinny" sound. I haven't saved my project and have been trying to fix this. Is there a way to undo noise reduction? 

[SteveG_AudioMasters_]

Nothing you do to a file becomes permanent until you've saved it. But once you've saved it, that's it - no going back. What you've done isn't clear - the word 'project' has no meaning as such in Audition. You are either working on a session - in which case everything is reversible, because the session is non-destructive, or in Waveform view which deals destructively with files - see first sentence.