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.

: Compensates for source audio that is too narrow or too wide. Moving the slider left narrows the image, while right increases it. Movie Mode

At its core, the V.I Stereo to 5.1 Converter Suite is a sophisticated software application (often available as a VST plugin, standalone application, or DirectX module) designed to analyze a standard Left/Right stereo signal and redistribute it across six discrete channels: Left, Center, Right, Left Surround, Right Surround, and the Low-Frequency Effects (LFE) channel (the ".1").

While the professional audio world moves toward object-based audio (Dolby Atmos), the vast majority of legacy content is stereo. The V.I Stereo to 5.1 Converter Suite fills a crucial niche.