V.i Stereo To 5.1 Converter Suite -

The interface is designed to be intuitive, offering real-time visualization of the stereo to surround conversion:

One of the most difficult tasks in stereo-to-surround conversion is creating a stable Center channel (for dialogue, lead vocals, or kick/snare drums) without making the audio sound hollow or phasey. v.i stereo to 5.1 converter suite

The primary selling point of V.I is its approach to separation. Instead of using simple delay or phase cancellation (which can result in "phasey" artifacts), V.I analyzes the frequency content of the stereo field. The interface is designed to be intuitive, offering