SPATIO Inverse plugin is absolutely the best one I used on vocals for this kind of effect.

What’s most impressive about the CX1V is the transparency. This is not a compressor that encourages “squashing”-type special effects, but you can easily restrict the dynamic range of everything from individual instruments to program material while retaining a very natural sound…if you crave a quality compressor, check out the demo of this fine plug-in.

…ANWIDA delivers what it promises…The sound is consistently transparent, and the signal dynamic range compresses smoothly even at extreme settings. In our tests, for example, we found that the CX1V is effective in softening transients, such as from drum kits, without adding any coloration. Sometimes the transparency was so effective overall that we often checked…

…As with a hardware unit, you can simply start pressing buttons and turning knobs to see what sounds you get. It couldn’t be easier…we found that the sound quality is exceptionally clean and clear, and that, whether we used the presets or any of our own settings, both EQs can powerfully re-shape the character of…