How to remove noise in adobe audition?

hi  hi how to remove vocal 

Audition's built-in Process Noise Reduction works, like everybody else's, rather better on constant noise, and isn't really very good for transient variable noise. Whilst the Adaptive NR copes a little better, it tends to have pumping noise on it.

In terms of AI tools, there isn't one that will restore missing vocals - because it wouldn't have any idea of what they should be! There is an on-line Adobe AI tool that will improve most speech, at least - and although I don't know how well it works with sung vocals (you'd have to try it), it works pretty well with speech, and can often get rid of things that nothing else will shift. It's free to use, although there are some upload limitations which are explained on the site.

It's here: Adobe Enhance Speech tool