Arctican The Function
Arctican has released The Function, a new free effect plug-in for Windows and Mac OS X in VST and AU formats.
The Function is designed to let you manipulate a stereo signal giving control over the output. Each channel (left & right) can be manipulated in different ways. You can pan each channel to either speaker, and invert the phase. You can also independently adjust the gain for each channel.
This is for example useful for dodgy recordings with phase and pan issues.