PSP StereoController2: Stereo Width and Correction Plugin by PSP Audioware

PSP StereoController2 addresses common stereo recording faults. Its delay control offers up to 2 ms, which the developer says can compensate for roughly 68 cm (2 ft) of distance mismatch between microphones. A channel balance control, polarity switches for each channel and a channel swap function cover level differences, reversed phase and swapped outputs.

A center control moves the panorama position of the center content, while a stability control balances the sides without changing where the center sits. Together these help when a central instrument appears shifted to one side of the mix.

The width section can expand a narrowly recorded stereo track by up to 400 percent. A master gain control reaches ±12 dB, and the plugin includes separate low and high bands with gain control of up to ±6 dB and optional dedicated width and gain controls for each band.

This split lets you narrow the low end for mono-compatible bass while widening the highs for a more open top end. An M-S decoder, with separate monitoring and solo of the Mid and Side signals, helps when working with mid-side encoded material. A correlation meter and a balance meter show the stereo relationship while you adjust.