The Correlation meter checks the mono compatibility of any stereo audio file--an important last test when mixing. At the end of a mix, I always check on my stereo mixes especially when using 3D-like widening effects. For fixing live recordings using multiple microphones, there is up to 2ms of delay available to repair mismatched microphone distances of up to 68cm or 2 feet.

I especially liked the Stability control for balancing the L/R sides without affecting center-panned tracks or mono compatibility. The Center control will reposition center-panned signals/tracks anywhere from left to right. I also found the "flow chart" and included manual very useful reading that has caveats about excessive manipulation of stereo field, phase integrity and polarity. The plug-in's controls has values that turn red when you exceed the safe limits of phase manipulation. I like that feature a lot!

Everything you need to analyze, manipulate or fix stereo audio comes with PSP StereoController2. It has zero latency and runs in all current DAW programs. It sells for $99 MSRP.

www.pspaudioware.com/products/psp-stereocontroller2