Spazial free is a powerfull audio VST able to encode-decode incoming stereo or incoming mid-side signal.

Spazial is designed for create wide stereo effect and is able to encode and divide the incoming stereo signal into M / S signal but also for decode M / S signal into stereo signal. In the panel also has a very useful high-pass filter and a very special vibrato control.

5 selectable mode

INTERNAL - encode stereo signal into M/S and edit the two components via the panel controls. Send stereo signal.
ENC MID - encode stereo signal and send only M signal.
ENC SIDE - encode stereo signal and send only S signal.
DECODER- decode M/S signal and send stereo signal
(input left=mid input right= side).
SPAZIAL - send large stereo signal.

Controls

Adjust Phase: tuning phase.
Mid - Side: control for M/S signal.
Spazial: control for wide stereo.
Vibrato: special vibrato control.
Hi-Pass: control for hi-pass filter.
Volume: Volume Master control.

Spazial is free donationware and available in VST format for Windows.