VIBR Audio Plugins
VST3 · AU · Standalone
Twenty vintage redesigned effects (and some new) in nine groups: delay and echo, modulation, drive, dynamics, EQ, amp and cabinet, pitch, reverb and rhythm, plus a multi-effect that chains them and a drum machine. Every front panel is drawn from scratch, every knob is live, and everything is open source.
Click a screenshot to enlarge it. Pick one or more groups to filter; with none picked, every plugin is shown.
Two delays and a shimmer reverb in one new, original pedal. Each delay has free or tempo-synced time (whole, half, quarter, dotted, triplets and more), repeats, level and modulation. Add a per-delay repeat filter, ping-pong and stereo spread, a boost, chorus and hall reverb, and four panel memories to store and recall your own settings.
All the pedals in one plugin. Build a signal chain of up to eight of them: add a pedal from a menu, remove it, drag it to a new place or bypass it, and click a pedal to play with its full front panel. Your chain and every pedal's settings are saved with the session.
A modulation delay with twelve modes, from a clean classic echo to dual-mod, wide and pattern delays. Tap tempo with five divisions, mod rate and depth, and four panel memories.
A lush stereo chorus and a vibrato from the same modulated delay. Level, chorus intensity, vibrato depth and rate, a high / low input sensitivity switch and a peak lamp.
A tape echo with spring reverb, controlled by a 12-position mode selector (heads, repeat and reverb combinations). Wow and flutter, tape age, bass, treble, repeat rate, intensity, echo and reverb volume, and a live VU meter.
The RE-1 engine plus saturation, a guitar / line input switch, new or aged tape, head lamps that follow the mode dial, and four panel memories.
A classic orange-stompbox style distortion: booster, op-amp gain stage and diode clipping (4x oversampled), with Tone, Level and Dist knobs.
A stompbox-style flanger with Manual, Res, Depth and Rate knobs and three modes: Standard, a deeper Ultra, and Gate / Pan, which sweeps the flange between the left and right outputs.
A stompbox-style compression sustainer with Level, Tone, Attack and Sustain knobs. It evens out your playing and lets notes ring on, with a CHECK lamp that lights when the effect is on.
A stompbox-style limiter with Level, Tone, Release and Threshold knobs. It holds peaks under a ceiling with a fast attack and a release you set, and the CHECK lamp shows when the effect is on.
A stompbox-style phaser with Rate, Depth and Res knobs and two modes: I, a classic four-stage phaser, and II, an eight-stage sweep with deeper notches and stronger resonance.
A stompbox-style graphic equalizer with seven faders at 100 Hz, 200 Hz, 400 Hz, 800 Hz, 1.6 kHz, 3.2 kHz and 6.4 kHz, each ±15 dB, plus a level fader. Double-click a fader to reset it to zero.
A stompbox-style enhancer that picks off the treble above the Freq setting, brightens it and adds it back. Mix runs from inverted (a dip) through zero to normal (a boost), and Sens decides how quietly you can play and still open it up. A lamp shows when it is working.
A guitar amp and speaker cabinet in one stompbox. Eleven amp types, from clean and twin to crunch, brown, high-gain and a rectifier-style stack, with Gain, Level, a three-band tone control and an Ambience room. The cabinet is a filter model rather than a measured impulse response.
Chops your sound into rhythms: eleven patterns, five modes (single, dual ping-pong, tremolo, SFX with a filter sweep, and harmonic band split), with balance, attack and duty controls. Tempo comes from the knob or follows the host.
Twelve drive types, from a soft overdrive to a tight metal tone and fuzz, with Drive, Level and a three-band tone control. Add a switchable boost, a noise gate, a red LED display and four panel memories.
Add notes an octave up and one or two octaves down. Vintage mode is a classic monophonic octave divider; Poly mode shifts whole chords, with a range control for the lowest octave. Direct, +1 oct and -1 oct levels mix the voices.
Twelve reverb types on one engine: room, hall, plate, spring, swell, bloom, cloud, chorale, shimmer, magneto, nonlinear and reflections. A six-cell display shows the type and the value of the knob you turn; decay, pre-delay, mix, tone, two type-specific parameters and modulation shape each sound.
A warm analog-style delay with six knobs: blend, level, feedback, delay time, and a chorus / vibrato modulation with its own depth. An overload lamp shows when the input stage is pushed.
A clean digital delay with a long delay line: delay time and a time factor, regeneration with a hi-cut filter, modulation intensity and frequency, and separate direct and effect levels. A headroom meter and a hold switch round it off.
A digital delay with a programmer: a live segment display shows the program and the delay time in milliseconds, with keys to write, select and step the time. A filter selector, five modulation waveforms, input and output attenuators and a headroom meter complete it.
How a pedal becomes a plugin.
Every plugin is a JUCE project vibe coded in modern C++20. One codebase builds VST3, Audio Unit and a Standalone app.
The sound engines are plain header-only C++: interpolated delay lines, feedback filters, tanh saturation, modulated chorus, a feedback-delay-network reverb with a pitch-shifted shimmer, and tape-style wow and flutter. Every parameter that touches gain or delay time is smoothed, and nothing allocates on the audio thread.
Each front panel is rendered by a small Python script (NumPy and Pillow): a satin powder-coated body with a bevelled rim, black panels, printed legends and chrome details, drawn at twice the size and scaled down for a crisp finish. The knobs, lamps, switches and the VU needle are then drawn live by JUCE on top, at positions shared with the script.
All plugins follow one style guide: a palette of twenty-one colours, the same margins and gaps, the same header, the same power switch.
One CMake build produces every plugin. Code that more than one plugin needs (the reverb engine and the four panel memories) lives in a small shared header library, so plugins never include each other. Bundles are code-signed and collected in one folder after every build.
Each build is validated with Apple's auval for the AU, and every control is tried in the Standalone app with real mouse input, with a screenshot compared against the design.
Free to use, study and change.
The source code and the artwork scripts are released under the GNU General Public License, version 3. You may use, copy, modify and share them, as long as derived work is shared under the same licence. The full text is in the LICENSE file in the repository.
The plugins are built with JUCE 8, which is used here under its open-source licence (AGPLv3). The designs are inspired by classic hardware but are independent and carry no third-party branding. Product names mentioned belong to their respective owners.