Free VST audio plugin from FSU.
It might be a bit difficult to articulate what the software does, but just pop it into your DAW, feed it with some audio and hit the little button. After this, simply tweak the big knob as per your liking then press the button again. It is an easy and straightforward process of operation.
The installation process is a breeze; all you have to do is add CopyShop to your /Library/Audio/Plug-Ins/VST/ folder. Overall, for those who prefer simplicity and ease of use in audio production, Copyshop is a great tool that perfectly fits the bill.