I believe what your asking is not possible to do yet in sonar,
those things are typically done I isotope RX, Waves x, and other programs made for the job.
ive seen a few suggestions before but nothing that has gone in my book of, this works great.
it was always some band aid that sound sounded like dung
.
this is true to the reason you hear many folk say "its a good way to ruin a track.
because if it was fixable, it wouldn't be ruined, sorry.