The V.I Stereo to 5.1 Converter Suite transforms stereo audio inputs into immersive 5.1 surround sound outputs by extracting ambient elements embedded within the original stereo signal. This intelligent redistribution of sound enriches the listening experience by allocating ambience across multiple channels, creating a dynamic and spacious audio environment. It is designed to seamlessly adapt stereo content for surround sound playback without compromising the integrity of the original mix.

To accommodate VST hosts that lack support for plugins with two inputs and six outputs, the suite includes three companion plugins—fLfR, CLFE, and sLsR—which replicate the conversion effects across three pairs of stereo channels. These channel pairs can then be combined to produce a full six-channel surround file ready for encoding. This modular approach ensures compatibility and flexibility in a variety of production setups.

The suite offers advanced features such as width correction to fine-tune the spatial characteristics of source files that may have been mixed too narrowly or too broadly. It allows independent control over ambience levels for the front and rear sound stages, enhancing spatial accuracy. A dedicated Movie Mode optimizes dialog clarity by routing certain frequencies to the center channel, maintaining a well-balanced stereo soundstage. Additional controls include pass-through of original stereo signals, A-B effect monitoring, and a switchable low-frequency effects (LFE) channel, providing users with precise manipulation of their surround sound mix.