Stereo Widener
One widening move, done right. VINAIstereo runs the reference widener algorithm: a delayed copy of your signal, left side flipped, summed against the dry. Four controls, mono-safe by construction, and a lab-grade vectorscope with AUTO visual gain that shows you the field you are building.
VINAIstereo widens, detunes and moves the image without adding a single sample of latency. Bypass returns your signal bit-for-bit, exactly as it went in.
We ship numbers, measured to the floor of the instrument itself.
0 ms latency · bit-exact bypass · no measurable crosstalk · zero self-noise · 48 kHz
The widener that producers build by hand from a delay and a utility, engineered as one instrument. A copy of your signal is delayed by TIME (the same time on both channels), its left side is flipped, and the result is summed against the dry. WET is the width you hear; DRY is the centre you keep. On a mono source the wet cancels exactly in the mono fold-down: mono-safe is a property of the math, not a promise.
The display draws the last 38 ms of audio as a beam with real CRT physics: where the trace slows down the phosphor glows, where it sweeps it dims. The diamond graticule is digital full scale itself, so the edge always means something. AUTO SCALE is engaged by default: a visual gain that keeps the figure readable at any level, stepped and hysteresis-locked so it never pumps or breathes. One click on the glass switches to a fixed +6 dBFS scale.
On the right edge of the scope, a 41-segment PHASE column reads the correlation of what actually leaves the plugin: blue toward +1, lava to red toward anti-phase, with a fast attack into danger and a worst-case hold. Beside it, MID and SIDE peak meters split your output into the centre you keep and the width you are adding. If MID drops while you open WET, you are cancelling, not widening, and these meters are how you catch it.
Four controls build the field. The rest of the interface exists to prove, in real time, what those four controls are doing to your mix.
A delayed copy with the left side flipped, summed against the dry. TIME sets the character, WET sets the amount, DRY holds the centre.
A dwell-intensity vectorscope on a full-scale diamond graticule. AUTO SCALE keeps the figure readable and never pumps; click for a fixed +6 dBFS scale.
Widen the top, keep the bottom where it belongs. A 24 dB per octave high-pass sits on the wet leg only, so below the cut nothing is processed at all and the dry runs straight through. Snap it to the key of the track.
A 41-LED correlation column with worst-case hold, plus MID and SIDE peak meters: the mono-safety story of your output, told live.
| Type | Reference stereo widener for electronic music |
| Algorithm | Delayed copy, left polarity flip on the wet, summed against the dry · mono-safe by construction |
| Time | 0.1–100 ms, identical on both channels · 6-point fractional interpolation |
| Dry / Wet | DRY mute to +6 dB · WET −24 to +6 dB · 0.5 dB steps · WET sets perceived width |
| Split | 20 Hz to 1 kHz high-pass on the wet leg only · 24 dB per octave, zero latency · OFF at the bottom of the travel, bit-exact · note snap to the nearest semitone |
| Vectorscope | 38 ms window · dwell-intensity beam (dry lava · output blue) · full-scale diamond graticule · AUTO SCALE by default, fixed +6 dBFS on click |
| Metering | 41-segment correlation column with worst-case hold · MID / SIDE peak meters with hold readouts |
| Latency | Zero: 0 ms / 0 samples |
| Formats | VST3 · AU |
| Systems | macOS 11+ (Universal) · Windows 10+ · 64-bit |
| Version | 1.0.2 |
Drive the source before you widen it. Four bands, five distortion characters each, with a real-time analyzer.
The counterweight to width: rebuild low-end energy lost to phase conflict for a solid mono that never sounds hollow.
Verify what the widener does to the waveform. Bit-transparent real-time monitoring with phosphor persistence.