OttoVerb
Studio-grade reverb for deep sound design of lush spaces. Four fundamentally different topologies, nine expressive character macros, multiple modulation sources, and a modular tail effects chain.
Four algorithms, one plugin
Four fundamentally different reverb topologies — each voiced as its own instrument. Swap between them on the fly; every character macro, modulator, and tail effect carries across.
Plate
Dattorro 2-loop stereo plate. Classic, punchy, compact — the sound of a thousand hit records, tuned by hand.
FDN
Feedback Delay Network with 4-to-32 loops. Smooth, dense, impossibly geometric — a room that doesn't quite exist.
Nested Allpass
Gardner-style nested allpass cascades. Ultra-silky diffusion with elegant internal routing for the longest, smoothest tails.
Velvet Noise
Sparse impulse-train convolution. Stochastic texture — the feel of natural ambience without the computational weight.
Read the reverb you're shaping
A live topology visualizer shows delay loops pulse, energy flow between them, modulation rings orbit active nodes, and dynamics breathe with the source. Every gesture on the GUI reads back visually — you hear the change and you see it.
A rendering of the OttoVerb focused-view scene. A D-shaped room with a wall you drag to change room size, four horizontal macro strips along the bottom (Material, Flavor, Motion, Tail), left and right vertical rails for Mix and Shimmer, a listener ear with spread handles, and a source slider. The page shows a non-interactive auto-animated preview.
Shape character in a gesture
The focused view's macros are gestures on the room itself — drag the wall, pick the material, shape the tail. Each one moves several underlying parameters at once, so small, intuitive adjustments reshape the whole space.
Multiple modulators, complex evolution
Layered modulation sources operate at different timescales — fast random walks inside the tank, slow spectral sweeps on the output, envelope followers on the tail. Even the densest wash keeps moving.
LFOs & Seven Mix Modes
Per-loop random-walk LFOs at independent rates. Seven routings — Classic, Ring Phase, Cluster, Tree Depth, Asymmetric, Cross-Mod, Freq Split — reshape how modulation propagates through the tank.
Dynamics Envelope
An input-tracking envelope follower reshapes tail amplitude and decay in real time. Hit the input hard and the tail blooms; lay back and it settles. The reverb breathes with the source.
Evolve & In-Loop Motion
Two orbiting spectral markers sweep bandpass resonances on the output. Inside the feedback loop, chorus and a 12-stage phaser add slow, lush interference — not on the output, inside the reverb.
Otherworldly tails
A modular effects chain sits inside the feedback path. Shape decay into pitched ascending washes, tape-collapsed grit, swirling analog motion, or spectrally filtered textures — all on the tail itself, not the dry signal.
Shimmer
Pitch-shifted feedback at any interval from an octave down to two octaves up, with independent tone and feedback amount. Infinite ascending washes, subtle harmonic coloring, or dark octave-down drones.
Dirt & Lo-Fi
In-loop waveshaping saturation, 500 Hz to 48 kHz sample-rate reduction, and 2-to-32 bit crushing. Tape grit, warm drive, or full digital collapse — applied to the reverb itself.
Chorus & Phaser
In-tail modulated delay (Depth, Speed) and a 12-stage allpass phaser (Depth, Speed, Stages) add dense, lush interference. Both operate inside the feedback loop for a texture you can't get from a post-effect.