Take your patches into interstellar overdrive. Pro Modules are instruments, effects, oscillators, filters, sequencers and controllers built entirely in Audulus, with the depth and care of professional audio plugins.
Library updates won’t break modules already used in your patches. Your license lets you update them for new features whenever you choose.
Available as in-app purchases in the Audulus Module Library through the App Store.
Prices in USD; local App Store pricing may vary.
Module catalog
36 products shown for All.
Lyrus8
$14.99
An eight-voice touch synth inspired by the SOMA LYRA-8, with cross-modulating voice pairs, a Hyper LFO and feedback delays for drones that grow into wild, living soundscapes.
Features & specs
8 touch-triggered voices arranged as four cross-modulating pairs.
Hyper LFO, cross-feedback dual delay and asymmetric drive.
External audio input, voice CV routing and hold controls.
HarmOsc
$14.99
An eight-partial additive oscillator modeled after the Verbos Harmonic Oscillator. Versatile, lightweight VCO with inputs for FM. Use Audulus poly tools to polyphonize.
Features & specs
8 additive partials with individual harmonic outputs and a summed output.
Width, Center and Tilt controls shape the harmonic spectrum.
Linear FM and exponential FM inputs with modulation-depth controls.
Wave 3D
$14.99
Modulate a cube of 512 waveforms with X/Y/Z morphing, up to eight polyphonic voices and four unison layers per voice. A complete wavetable VCO.
Features & specs
512 waveforms arranged in an 8 × 8 × 8 wavetable cube.
Up to 8 polyphonic voices and 4 unison layers per voice.
X, Y and Z position controls with external modulation inputs.
Audio-rate FM input and stereo outputs.
CANG
$14.99
A granular filtered noise generator driven by cellular automata, moving from sparse, speech-like ticks to dense streams of animated grains.
Features & specs
256 cellular-automaton rules, selectable from Rule 0 to Rule 255.
External trigger clock with playback-rate division and multiplication.
Freeze captures and loops the current grain phrase.
Separate granular audio and grain-envelope outputs; pitch, density and filter-resonance controls.
synDrums
$14.99
Four independent drum-synthesis lanes can each choose a bank of drums from kick, snare, cymbal and two percussion banks. 53 drum algorithms, just enough parameters to modulate for immense variety.
Features & specs
4 independent drum-synthesis lanes; every lane can select any of 53 algorithms.
Five banks: 7 kicks, 8 snares, 12 cymbal/metal voices and two 13-voice percussion banks.
Velocity-sensitive trigger input and separate audio output for each lane.
Modulation inputs for Type, Decay, Cutoff and Drive on every lane.
SynD-K2
$14.99
A kick drum synth thta can push into non-drum textures, with FM, wavefolding, saturation and sculpting filters. Inspired by the Synare.
Features & specs
Separate spline pitch and amplitude envelopes with shared time and rate controls.
Linear-Hz and carrier-ratio FM modes with frequency and depth modulation.
Click accent, rattle noise, wavefolding and saturation.
High-pass/notch tone shaping, four-pole low-pass filtering and stereo-width control.
modalPerc
$14.99
A stereo percussion engine with 108 drum and percussion instruments, from tuned toms and snares to bells, wood, glass and strange resonant objects. Built for fast switching and intense modulation, with linear drums in mind.
Features & specs
108 drum and percussion instruments with family and member selection.
User family holds up to 32 instruments, including duplicate entries.
Pitch, pitch drop, decay, density, tone and drive modulation.
Stereo audio outputs and fast instrument switching for sequenced percussion.
TRIKOR VCO
$14.99
A complex oscillator with phase warping, through-zero FM/PM, feedback and wavefolding. Twist familiar waveforms into a beautifully unruly disharmonic machine.
Features & specs
Waveform morphing, touch-editable phase breakpoint, feedback and slew.
Sine and cosine wavefolding algorithms with offset control.
Soft sync with −1, 0 and +1 octave offsets; frequency and phase modulation controls.
Essential Synths Bundle
$19.99
BB-1 and SS-1: a bass powerhouse and a supersaw synth built for polyphony.
BB-1
A bass synth with two morphing oscillators, a sub, wavefolding, three filters, a modulation matrix and stereo effects. Dial in rounded low end or drive it into metallic mayhem.
Features & specs
Two morphing oscillators, a sub oscillator, hard sync and oscillator detuning.
FM/ring modulation, wavefolding and three low-pass filter models.
Two ADSR envelopes, two LFOs and an assignable modulation matrix.
Chorus, flanger and vibrato effects with stereo audio output.
SS-1
Built upon a classic supersaw synth structure, pushed into a wider range of sonic possibilities with unison, filters, a modulation matrix and stereo effects. Built with polyphony in mind, for towering chords, lush pads and cinematic synthscapes.
Features & specs
Up to 8 polyphonic notes with 2–6 unison oscillators per note.
Sub oscillator, noise and ring modulation layers.
Ladder, SEM and Formant filter models; two envelopes, two LFOs and a modulation matrix.
Chorus, ensemble, flanger and vibrato effects with stereo output.
J-23 Space Console
$24.99
A flagship reverb workstation with twelve reverbs, three serial effects slots, shimmer, granular freeze and a modulation matrix. Build your own cosmic effects console.
Features & specs
12 reverb algorithms and three serial effects slots, each with 12 selectable effects.
Shimmer, granular freeze, internal damping and post-reverb high-pass/low-pass filters.
Envelope follower and LFO with 11 assignable modulation targets and external modulation inputs.
Stereo audio input/output; tempo-aware time and rate controls.
J-23 Reverb
$19.99
Twelve reverb algorithms spanning rooms, plates, halls, spring, reverse and granular spaces, with shimmer, freeze and modulation. Take a sound from an intimate room to interstellar distances.
Shimmer interval and depth controls plus reverb-tail freeze.
Internal damping, post-reverb high-pass/low-pass filters, stereo width and pan.
Hz input for tempo-synced predelay; external modulation inputs for core parameters.
J-23 Effects
$19.99
Nineteen stereo effects in one module, from echoes, chorus and phasing to pitch, reverse and granular processing. A versatile rack of sonic mischief for any patch.
Features & specs
19 stereo effects with dry/wet mixing.
Three effect-specific parameter knobs with changing labels and value displays.
Tempo sync for supported echo, tremolo and gate effects via the Hz input.
External parameter modulation with attenuation and a soft-switched Active control.
Vocoder
$14.99
A sixteen-band stereo vocoder with multitouch band controls, preset morphing and pan modulation. Make a synth speak, sing or pulse to the shape of another sound.
Features & specs
16 analysis bands with stereo output and touch-controlled band levels.
16 stored band-level presets with adjustable morph time and curve.
Independent pan and pan-modulation depth for every band.
Separate carrier/modulator inputs, envelope attack/release, sibilance and Hold controls.
fieldEQ
$14.99
A 32-band graphic EQ with a physics-inspired approach to modulating across the spectral field. Draw a tonal shape, then set waves of modulation moving through the spectrum.
Features & specs
32 one-third-octave bands from 16 Hz to 20 kHz, with ±24 dB gain per band.
Flow, Standing, Ripple Up and Ripple Down spectral-modulation modes.
Stereo dry path; wet bank can use dual-mono or an odd/even band split.
Touch-editable band levels, stored presets and dry/wet mixing.
resEQ
$14.99
Inspired by the serge resonant EQ. A ten-band resonant graphic EQ with deep built-in modulation. Play the spectrum as an instrument, from animated tone shaping to ringing resonances.
Features & specs
10 resonant EQ bands with gain from −24 dB to +12 dB.
Independent gain and modulation-depth control for each band.
Combined, odd-band and even-band audio outputs for spread processing.
combF
$14.99
A ten-band tuned comb-filter bank with modulation and per-band stereo panning. Turn incoming audio into metallic chords, tuned ringing and wide, shimmering textures.
Features & specs
10 tuned comb-filter bands with individual level and modulation-depth controls.
Independent band panning and pan modulation for stereo processing.
Stored spectral shapes with preset morphing and shared modulation controls.
VCF 1 Bundle
$14.99
AK-LPF, Dual Filter and Rez-4: three approaches to analog-inspired filtering and resonant sound shaping.
AK-LPF
An sixth-order low-pass filter with resonance and drive. Smooth the top end, warm up a sound or add a little bite. Akai S950-style.
Features & specs
Six-pole low-pass filter built from three cascaded two-pole sections.
Cutoff, resonance, drive and dry/wet controls.
Mono audio input/output and attenuated modulation inputs for all four controls.
Dual Filter
Two multimode filters set up for modular synthesis exploration, with independent cutoff, resonance and drive, routed in series, parallel or a blend. Explore everything from broad tonal shaping to snarling resonant sweeps.
Features & specs
Two filters with independent cutoff, resonance, drive and type controls.
Series, parallel and blended routing.
1 V/oct cutoff tracking with octave-offset controls.
Separate A/B wet taps and a combined output with wet/dry mixing.
Rez-4
A four-band resonant filter bank inspired by the Cwejman Rez-4, with individual band outputs and a notch output. Carve, ring and animate your sound one band at a time.
Features & specs
Four parallel resonant band-pass filters with independent frequency, bandwidth and gain.
Individual band-pass outputs and a phase-summed notch output.
Wet/dry mixing, drive, post-gain and attenuated modulation inputs.
CPR-1
$4.99
A linked stereo compressor for controlling levels, shaping transients and adding density while keeping the stereo image stable.
Features & specs
Linked stereo feed-forward compression with an external stereo sidechain.
Compression ratio from 1:1 to 20:1.
Threshold, attack, release and knee controls plus input/output gain and drive.
Stereo output metering and gain-reduction display.
CPR-3
$9.99
A three-band upward/downward compressor for lifting quiet detail and controlling peaks. Bring out the hidden energy in a sound or push into OTT-style intensity.
Features & specs
Three stereo bands with upward and downward compression.
Per-band ratio from 1:1 to 40:1; separate thresholds, attack, release and gain.
Two adjustable crossover frequencies; per-band Active and Solo controls.
LMT-1
$4.99
A stereo lookahead brickwall limiter with ceiling saturation and visual metering. Catch peaks and shape the final level of your patch.
Features & specs
Linked stereo brickwall limiting with lookahead.
Output ceiling from −12 dB to 0 dB; release from 8 ms to 500 ms.
Soft-ceiling saturation and visual gain-reduction metering.
gainCV and clipCV outputs expose limiter activity to the rest of the patch.
Poly Seq
$14.99
A polyphonic piano-roll sequencer with touch editing and pattern chaining. Draw a melody, build a chord progression and let it drive your modular universe.
Features & specs
10 output voices and 16 presets; each preset supports up to 128 steps.
97 semitone rows with a 25-note editor view.
Touch drawing, note-run resizing, velocity editing, group moves and undo.
Pattern chaining with CLK synchronization and polyphonic pitch/gate/velocity outputs.
SS-X16
$14.99
A sixteen-step sequencer with eight event graphs for pitch, glide, gates, ratchets, velocity and more. Shape every step, then mutate the pattern into new territory.
Step-specific mutation depth with probability and external mutation triggering.
CLK and gate-clock modes with preset recall and advancement.
SQ-2
$9.99
A seven-track gate sequencer with two independent clock lanes. Set different lengths and rates to build interlocking polyrhythms and evolving cycles.
Features & specs
7 gate tracks plus a shared accent track.
Two independent clock lanes, with per-track lane routing.
Independent lane lengths and rates; CLK and gate timing can be mixed.
External-gate masking, preset recall, advance and random selection.
gateSeq
$9.99
An eight-track touch-editable gate sequencer with sixteen presets. Draw drum patterns, shape gate velocities or use it to transform incoming rhythms.
Features & specs
8 touch-editable gate tracks and 16 stored presets.
Draw, move, resize and copy gate runs; edit per-run velocity.
Sequence new gates or use active runs to mask incoming gates.
CLK and gate-clock modes with synchronization controls.
RS-1
$9.99
An eight-step ratcheting sequencer with per-step divisions, skips and random variation. Turn a steady clock into bursts, stutters and restless rhythms.
Features & specs
1–8 steps with per-step ratchet divisions of 1×, 2×, 3× or 4×.
Per-step skip probability, random timing variation and pulse-width control.
Individual step outputs and a combined sequence output; CLK and gate-clock modes.
Drum Patterns
$9.99
A mighty module in a small package. A four-track, sixteen-step drum sequencer with ten preset grooves, density control, fills and rests. Start a beat in seconds, then play its variations.
Features & specs
4 tracks, 16 steps and 10 preset grooves.
Separate kick, snare, hi-hat and percussion trigger outputs.
Fill and Rest performance controls; Rate, Density and Pattern modulation.
CLK timing or standard gate-clock input with Gate Mode sync/reset.
P-Lock
$9.99
A parameter-lock sequencer with eight independent patterns of step values, slew and random variation. Give filters, effects and synth parameters a rhythm of their own.
Features & specs
8 independent patterns with 1–32 steps per pattern.
Per-step values, slew and random-variation depth.
Step-timed, cycle-timed and CV-position playback modes.
One modulation output per pattern; CLK/gate timing and sync input.
ARP-1
$9.99
A chord arpeggiator with thirteen note-order modes, octave cycling and rhythmic velocity patterns. Add controlled randomness to send a held chord on a new journey.
Features & specs
Up to 8 polyphonic input voices; monophonic pitch, gate and velocity outputs.
13 note-order modes and 47 rhythmic velocity patterns.
1–3 octave cycling with random note, octave and velocity variation.
Gate pulse width and shuffled-order repeat controls.
CG-2
$9.99
A touch-pad chord generator with sixteen presets, up to ten notes per chord and MIDI output. Build a harmonic world and step through it by hand or by trigger.
Features & specs
16 chord presets with up to 10 notes each.
Up to 10 output lanes for pitch, gate and velocity, plus MIDI output.
Touch note entry and per-note velocity editing across a nine-octave grid.
Direct preset recall, advance, random selection, copy, paste and clear.
IsoTouch
$14.99
An expressive isomorphic touch keyboard with three layouts, triad controls and six-note polyphony. Find new chord shapes and put the patch under your fingertips.
Features & specs
6-note polyphony with pitch, gate and velocity outputs.
General, Harmonic/Tonnetz and Melodic/Wicki-Hayden keyboard layouts.
Triad controls and isomorphic note arrangements for transposable fingering shapes.
ME-1
$4.99
A freeform envelope generator and step sequencer with up to 128 breakpoints, smoothing and stored shapes. Draw motion into almost any part of a patch.
Features & specs
2–128 breakpoints and 8 stored presets.
Linear interpolation plus attack/release smoothing between step values.
Free-rate or Hz-synced playback, one-shot mode and external sync/reset.
Unipolar/bipolar output, inversion and preset-range advance/random controls.
MS-FUNC
$4.99
A 32-point touch-editable function generator with curved stages, sustain, looping and sixteen presets. Shape anything from a sharp drum envelope to a slow, unfolding gesture.
Features & specs
Up to 32 editable points and 16 stored presets.
Per-stage curves from logarithmic through linear to exponential.
Gated envelope or looping function-generator operation with sustain and retrigger controls.
Cycle sync and preset copy/paste/reset controls.
Chaos LFO Bundle
$9.99
Double Pendulum and Strange Attractors: chaotic motion turned into musical modulation.
Double Pendulum
A double-pendulum simulation that turns chaotic motion into modulation and triggers. Set it swinging and let unpredictable movement breathe life into a patch.
Features & specs
Two-mass pendulum simulation with rate, radius, mass and gravity controls.
Continuous X/Y modulation outputs.
Axis-crossing trigger outputs, summed triggers, external reset and a Perturb input.
Strange Attractors
Five classic chaotic systems for complex, evolving modulation. Explore the sweeping motion of Lorenz, the gentler spirals of Rössler and more.
Features & specs
Five systems: Lorenz, Rössler, Duffing, Chua and Nosé–Hoover.
X/Y/Z modulation outputs; Duffing uses X/Y.
Unipolar 0–1 or bipolar −1–1 output ranges.
Rate, depth and external reset controls.
CLK Tools Bundle
$9.99
CLK, CLK Dividers 1, CLK Dividers 2, CLK ES-1, CLK Strum and CLK Transform: a connected toolkit for clocks, grooves and rhythmic experiments.
CLK
A master clock with tap tempo, time signatures and a shared timing signal. Keep a whole patch moving together, from sequencers to synced effects.
Features & specs
1–500 BPM with tap tempo and external BPM control.
Time signatures with numerator 1–16 and denominator 2, 4 or 8.
Run/sync controls, shared CLK timing output and 21 divider-gate outputs.
CLK Dividers 1
Four independent clock dividers with pulse-width control. Build related rhythmic layers from one shared clock.
Features & specs
4 independent clock dividers with individual gate outputs.
PPQ, quarter-note and bar-based division selections.
Per-channel pulse width and pulse-width modulation; shared CLK timing input.
CLK Dividers 2
Four clock dividers with modulation, velocity, skips and a small velocity sequencer. Give synchronized rhythms room to evolve.
Features & specs
Three note/quarter-note dividers plus a fourth bar-only divider.
Pulse width, velocity, skip and modulation controls for dividers 1–3.
Up to five programmable velocity steps driven by divider 1.
Separate pulse outputs, shared CLK timing and sync input.
CLK ES-1
An event scheduler for synchronized, non-repeating gate patterns. Combine event lengths and repeats into rhythms that stretch beyond a conventional step grid.
Features & specs
Up to 8 scheduled events, each with 1–16 repeats.
Independent event division and pulse width.
Individual event gate outputs plus a summed sequence output; CLK and Sync inputs.
CLK Strum
Turn a trigger into a burst of overlapping or sequential gates, with a velocity slope for upstrokes and downstrokes. Strum a polyphonic patch or set off a cascade of events.
Features & specs
Polyphonic overlapping gates and a separate non-overlapping mono gate output.
Ascending, uniform or descending velocity ramp across the strum.
CLK-synced rate, adjustable pulse width and trigger input.
CLK Transform
Shift, swing and humanize the shared clock, then pass that transformed timing downstream. Bend the groove across an entire branch of your patch.
Features & specs
Shift, swing and humanization of shared CLK timing.
Swing divisions of 1/16, 1/8, 1/4 or 1/2.
Transformed CLK output plus a divided gate with pulse-width control.
CLK P-Train
$4.99
An eight-step pulse-train generator with per-step timing shifts and velocities. Push pulses ahead of the beat, pull them behind or scatter them with random offsets.
Features & specs
1–8 pulse steps with individual velocity and timing offset.
Onsets can move up to half a step early or late.
Quantized pulse width from 12.5% to 87.5%; repeatable random onset offsets.
CLK and gate-clock modes with sync, random and reset inputs.
CLK TimeWarp
$4.99
A clock that bends evenly spaced steps through nonlinear curves, with optional quantization. Warp the rhythm between a steady grid and elastic, off-center motion.
Features & specs
1–8 bars with 2–32 steps per bar.
Two timing-curve controls plus adjustable quantization depth.
Quantization divisions from 1/32 to 1/2.
Warped pulse and ramp-Hz outputs; CLK and gate-clock modes.