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SHIMMER REVERB

Pitched Ambient Reverb

Download free Part of NULL JSFX 2.5: 113 plugins, free and open source (MIT). Easiest with NULL JSFX Hub.

Listen

The same music with the Ethereal Pad preset and without the plugin. Switch while it plays.

Controls

Size0 to 100% — Size of the reverb space (scales the delay lines)
Decay1 to 20 s — Reverb decay time
Shimmer0 to 100% — How much of the tail is pitch-shifted back into the reverb
Pitch+12 (Octave) / +7 (Fifth) / +19 (Octave + Fifth) / +24 (Two Octaves) / -12 (Octave Down) — Interval the shimmer climbs each round trip
Damping1000 to 16000 Hz — Lowpass damping inside the loop
Mix0 to 100% — Dry/wet blend

Best uses

Ethereal pads and ambient beds
Shimmering guitar swells
Cinematic tails on vocals and pianos
Octave-down dark ambience

Properties

Signal chain: Input → 4-Line Feedback Delay Network (Hadamard matrix) → Damping → Pitch Shifter (crossfading taps, 80 ms window) → Feedback into the network → Mix → Output. Each round trip the tail climbs another interval; zero latency.

Formats

JSFXJSFX for REAPER, with REAPER's own sliders
GFXJSFX GFX for REAPER, with its own interface
VST3VST3 for any DAW
CLAPCLAP for any DAW

Factory presets

Ethereal Pad · Guitar Swell Shimmer · Cinematic Vocal Tail · Piano Shimmer · Fifth Halo · Organ Cloud · Crystal Two Octaves · Dark Octave Down

In the FX chains and Rack presets

Airy Ballad · Ambient Guitar · Choir Pad Vocal · Motion Pad

See every FX chain

Try it

Try it on orOS StudioAdd it to a track in your browser, with its own interface. Nothing to install.