Stereoid
A mono-to-stereo upmixer, imager, and enhancer for wider, richer, fully mono-compatible tracks.

Win 7 - Win 11
VST3 (64-bit)
OS X 10.10 – macOS 26
VST3, AU
Stereoid Light puts your stereo on steroids, distilling the core Stereoid processing into a streamlined upmixer, imager, and enhancer with a minimal interface.
It can transform a mono source into a wider, fuller stereo image and enhance existing stereo tracks without compromising mono compatibility. A carefully tuned combination of decorrelation, microtonal detuning, and delay adds width and depth to vocals, lead instruments, and full mixes.
Stereoid Light belongs to the SMARTLINE range: focused plugins that combine powerful DSP with direct, intuitive controls.
VST is a trademark of Steinberg Media Technologies GmbH, registered in Europe and other countries
Stereoid Light draws on psychoacoustic principles—the mechanisms through which we perceive sound—to create a wide and enveloping stereo image. Its processing combines temporal decorrelation , the Haas effect, and microtonal detuning.
Temporal decorrelation reduces the similarity between signals over time. Starting from a mono source, it generates related signals that retain the character of the original while exhibiting different perceptual properties.
The Stereoid Light decorrelator is designed to remain spectrally transparent, preserving the tonal balance of the original source. This makes it suitable for both mixing and mastering applications.
When a signal and a slightly delayed version of it reach the listener within a short time interval, they are perceived as a single, wider sound rather than as two distinct events. This psychoacoustic phenomenon is commonly associated with the Haas effect.
However, conventional delay-based stereo widening can introduce phase cancellation and mono-compatibility problems. The Stereoid Light algorithm is specifically designed to avoid these issues while preserving full mono compatibility.


Its bigger brother, Stereoid, provides additional control over the decorrelator’s frequency response, low-frequency balance, and amount of micro-pitch shifting. It also includes tube-style saturation.
SMARTLINE plugins are developed with a user-centered approach.
Powerful DSP algorithms meet intuitive user interfaces.
Each plugin is designed with user experience in mind, offering clear controls, immediate visual feedback, and ease of use.
ANWIDA Soft SMARTLINE delivers powerful features in compact, highly accessible plugins.
ANWIDA Soft — your sound, without unnecessary complications.
