From Melda Production:
MAutoVolume (64-bit) is a plug-in designed for mixing, which automatically rides volume of a track to ensure its consistent level. It can be used to make vocals stand above the background, stabilize bass track level and much more. And all you need to do is put the plugin on a track instead of manually automating levels. It includes automatic gain compensation, which quickly adapts to current settings and ensures the output sounds as loud as the input. This even protects you from thinking that something sounds better in cases it's just louder. With MIDI controllers with MIDI learn, you can map any parameter to any MIDI controller or MIDI keyboard and control it real-time or record and automate it.