Gain amplifies (or reduces) the signal by a specific decibel amount. It is very useful for quick level adjustments when you are working with automated tracks during post-processing—for example, when you have inserted an effect that doesn’t have its own gain control, or when you want to change the level of a track for a remix version.
Note: The Gain plug-in is available in mono, mono to stereo, and stereo instances. In mono and mono to stereo modes, only one Phase Invert button is available. In the mono version, the Stereo Balance, Swap Left/Right, and Mono parameters are disabled.