AR-K AUDIO

Plugins that play in key, and play together.

AR-K AUDIO makes VST3 plugins for Windows, made in and for Ableton Live. They share one core, one look and one musical language, and a small one-eyed alien called Orbit lives in every window.

Orbiton
Orbital
Holon
Resampler
Drums · LinnDrum style · 1 bar

Press play, then turn a knob. Someone down there likes it.

The family

Each plugin does one thing in its own colour. Put them in one Live set and they listen to each other.

Effect · Filter

Orbiton

The Orbiton window: a step grid in orange over a warm grey panel, knobs below

A step filter where every frequency is a note of your key. Draw steps, pick one of 52 filter models, and the filter plays a melody.

In developmentOrbiton
MIDI · Generator

Orbital

The Orbital window: cyan step lanes, a Déjà Vu circle and sections of knobs

Random melodies and rhythms you can steer, with a Déjà Vu memory that repeats, slowly changes or reshuffles what it played. Always in key.

In developmentOrbital
Instrument · Synth

Holon

The Holon window: oscillators, filter, envelopes and modulators in lime on olive grey

A polyphonic synth with chords, an arpeggiator and a step sequencer built in. Play one key and hear a whole progression, in key.

In developmentHolon
Effect · Resampler

Resampler

Coming soonNo window to show yet

Catch a loop and get variations back: musical, or completely crazy. Grains from your loop, in key, played by the rest of the family.

Coming soonResampler

One core under every plugin

Every AR-K plugin is built on ark-core, our own shared platform. That's why they connect without any setup, and why every new plugin you add fits right in with the ones you already have.

ark-core
ARK Linkkey, notes, rhythm and modulation between plugins
Scalesone key lock, the same keys and scales everywhere
MIDI toolsstep lanes, arpeggios, patterns you copy from one plugin to the next
Studio lookthe same panels, knobs and controls in every window
Orbitlives in every plugin, reacts to your music
For you

Buy one plugin and it already talks to the next one you get. No routing, no learning a new interface.

Always in step

Improvements to the core reach every plugin: a better scale engine or a new Link message helps the whole family.

Built to last

Every plugin is tested on the core: tuning, stability at every sample rate and buffer size, saved projects that open again exactly.

Meet Orbit

Somebody lives in there

That's Orbit. He lives in every AR-K plugin window, he's the hyphen in our logo, and he takes on the colours of whichever plugin he's in.

He strolls along the panels, climbs your knobs and rides them when you turn them. Turn too fast and he goes "oh noo". When the music gets funky he dances. Leave him alone long enough and he falls asleep. And if he gets in the way, there's a button that sends him home.

Walkexplores the panels
Climb and siton top of a knob, legs swinging
Ridehands up, or "oh noo"
Dancewhen the groove is right
Sleepnothing playing? zzz

How Orbit got here

A very long way, for a good bassline.

1 · The quietest planet

Very, very far away lies Hush, where nothing makes a sound. Not the wind, not the rivers, not even the fridges. Hushlings have one big eye (two would be showing off) and talk by blinking. One of them hummed all day. The neighbours thought his face was vibrating.

2 · The signal

One night the red ball on his antenna started to glow. A sound was coming in from very far away: dum… dum-dum… DUM. A bassline, from a bedroom on Earth where someone was making music in Live with the speakers way too loud.

3 · The trip

He built a spaceship from a saucepan, two paperclips and a lot of hope, and steered by the beat. He came in too fast ("oh noooo!"), bounced off a coffee mug and shot straight into the laptop's headphone jack.

4 · Inside the music

Behind a door marked VST3: knobs, hundreds of them, and music everywhere. Every note in key, so he could sing as loud as he liked and never sound wrong. Being polite, he blended in: orange here, cyan there, lime next door.

5 · His name

He climbed a knob, the music started, and it turned round and round, just like the little moon he used to ride back home. His real name takes nine minutes to blink, so the producer called him what he was doing: Orbit.

6 · Why he stays

He saw a gap between AR and K, thought it was a stage, and jumped in, arms up. He's been holding the company together ever since. Every week he beams a tiny MIDI file home. Last month, for the first time ever, Hush hummed back.

Made for Live

VST3 for Windows. Every AR-K plugin is built and tested in Ableton Live first.

Always in key

Pick a key and a scale once. Filters, melodies and modulation stay on its notes.

One family

One shared core, one look, one Orbit. Learn one plugin and you know your way around the next.

Effect · VST3 · In development

Orbiton

A step filter that plays in key. The cutoff follows a sequence you draw, and every frequency it makes is a note of your key and scale: the steps, the LFOs, the resonance peak, even the delay. So the filter plays melodies.

Cutoff
Resonance
Orbiton's window: the step grid with 16 orange steps, the lane row, and the Sequence, Mix, Filter, Key / Scale and Delay sections
The SOUND page: the step grid, a lane, and the sequence, filter, key and delay. Orbit is down by the delay.
Always in key

Choose one of 12 keys and 16 scales. Steps snap to the notes of the scale, and the resonance peak itself sits exactly on the note, in every filter model. Everything that moves the pitch goes through the same lock: LFOs, lanes, the envelope, the delay.

  • Detect: play your track, and it listens and sets the key and scale it hears.
  • Key wheel: a circle of fifths, and Walk to move the key around it while the song plays.
  • Chord Follow: hold a chord on MIDI and that becomes the scale.
52 filter models

The four originals (Ladder, Multimode, SVF and a tuned Comb) and 48 circuit models in families: transistor and diode ladders, OTA, Curtis and SSM 4-poles, state-variable, Sallen-Key, ARP, Yamaha, modern analog and some 2-pole oddballs.

  • Low-pass, band-pass, high-pass and notch; 12 or 24 dB.
  • Up to 4x oversampling, no clicks when you switch models mid-play.
  • A limiter that keeps the loudest resonance below -0.3 dBFS.

The names are playful nods to the instruments that inspired them; they are not those instruments.

Sequencer and lanes
  • 1 to 32 steps, synced rates with triplets and dotted, swing, forward, reverse, ping-pong or random.
  • Per step: a curve (or one you draw), repeats, probability, skip, and a step LFO that walks the note through the scale.
  • Draw mode: one curve over the whole loop, with points and bends or a pencil.
  • 15 lanes under the grid (volume, pan, octave, transpose, delay send...), each with its own length and speed, so they run in polyrhythm.
Melody and MIDI
  • Melody writes the steps for you, in key: arpeggios, a walk, a bassline, chord tones, call and response.
  • MIDI: drag the pattern's melody straight into a MIDI track in Live.
  • Notes meter: see how loud each note of the key is.
A delay that sings

Three ways to keep the echoes in key: Echo rings the repeats on the playing note, Scale Echo climbs the scale with every repeat, and Pitched tunes a tiny delay so the delay itself sings the melody. A lane decides per step what echoes, for dub throws.

Modulation
  • Two LFOs with 37 waves, or draw your own.
  • Envelope follower, a filter ADSR started by steps, MIDI or hits in the audio.
  • A 4-slot modulation matrix.
Orbiton's MODULATION page: two LFOs, the ADSR, the modulation matrix and ARK Link
The MODULATION page: LFOs, the ADSR, the matrix and ARK Link.
With the family

Let Orbital write, let Orbiton sing

Through ARK Link, Orbiton can take the key and scale from another AR-K plugin, sing its melody with the filter instead of the steps, or start its envelope on the other plugin's beats. No routing in Live: just the same Link channel on both.

How ARK Link works
Get Orbiton

Not on sale yet. The price and the download will be in the shop.

To the shop
MIDI generator · VST3 · In development

Orbital

Random melodies and rhythms you can steer. A Déjà Vu memory makes them repeat, slowly change or reshuffle, so random turns into a riff you can keep. Always in key.

Déjà Vu
Spread
Orbital's window: cyan step lanes at the top, the Déjà Vu circle on the right, and sections for clock, Déjà Vu, scale, pitch, arp, modulation, output and Link
Orbital with the LANES view: the step sequencer, the Déjà Vu circle and every section on one screen.
T decides when, X decides what

Three rhythm streams (T) and three melody streams (X), plus a slow modulation (Y). T has seven ways to make a rhythm: coin flips, drums, Markov chains, clusters, dividers, Euclid, or your own steps. Add swing, jitter, ratchets and accents.

Déjà Vu

At 0 the loop repeats exactly. Turn it up and notes start to change, a few at a time, or the loop reshuffles its own notes. Rhythm and melody each have their own Déjà Vu, so you can keep the groove and let the melody wander. Freeze a part to keep it, even when you reopen the project.

Always in key
  • Key Lock (on from the start): every note that leaves Orbital is a note of your scale.
  • Play a chord into it and the melodies follow: chord tones, extensions, or the whole scale with the chord strongest.
  • A bass channel on root and fifth, and voice leading that keeps lines moving in small steps.
Your notes, Orbital's variations
  • Sequence: draw steps with pitch, octave, velocity, length, chance and repeats.
  • Capture: like what it just played? Keep it as a sequence, then let Orbital vary it.
  • Learn: play notes in and they become the melody.
  • Arp: hold notes and Orbital arpeggiates them, with its own rhythm deciding when.
Clean Start

Every control starts at "nothing happens". Turn things up gently and hear exactly what each one does.

Where it comes from

Orbital is inspired by the ideas of the Marbles module and adapts parts of its open-source (MIT) firmware by Emilie Gillet. It doesn't claim to behave exactly like the hardware: it's made for a DAW, with Live's clock, scales and chords.

Orbital's RADIAL view: the loops drawn as circles
The RADIAL view: watch the loops go round.
With the family

The one who writes the notes

Through ARK Link, Orbital sends its melody, its rhythm, its modulation and its key to the other AR-K plugins. Orbiton can sing Orbital's melody; another Orbital can arpeggiate it. Orbital listens too: notes from another plugin come in as if you were holding them.

In Live, Orbital loads as an instrument on its own MIDI track (Live has no slot for third-party MIDI effects). Synth tracks play it with MIDI From: Orbital.

How ARK Link works
Get Orbital

Not on sale yet. The price and the download will be in the shop.

To the shop
Synth · VST3 · In development

Holon

A polyphonic synth that knows its harmony. Chords, an arpeggiator and a step sequencer are built in: play one key and hear a whole progression, hold a chord and hear it arpeggiated, in key.

Cutoff
Sustain
Holon's SYNTH page: three oscillators, the filter with its curve, the amp envelope, modulators and voice settings
The SYNTH page: oscillators, filter, envelopes, modulators and voices.
Sound engines
  • Analog-style oscillator models: Triple VCO, Dual VCO, DCO, Multisaw, Eco and Digital, with sync, cross-mod, drift and noise.
  • FM: six operators and twelve algorithms, with a live routing diagram.
  • VA-X: a second virtual-analog engine with its own panel.
  • Up to 32 voices, unison, glide.
Filters

Five filter designs, each with its own character: Ladder, Cascade, Multimode, Sallen-Key and State Variable. Most self-oscillate. The filter curve shows what really plays, with the cutoff in Hz, even while it's being modulated.

Chords
  • 16 chord slots: type any chord, or let Generate write a progression in your key.
  • Suggestions for the next chord, with roman numerals and the reason why.
  • Voicing, inversions and voice leading.
  • Progression keys: 16 keys on your keyboard play the 16 chords.
  • About 80 scales, from the modes to world and microtonal scales.
Arp and sequencer
  • Ten arp modes, 1 to 4 octaves, swing, latch; it can follow the chords you play.
  • Step lanes up to 64 steps for pattern, pitch, octave and velocity, each its own length.
  • Euclidean rhythms, probability, repeats, timing shifts.
  • Everything stays in key. Patterns copy straight across to Orbital.
Modulation you can see

Four LFOs and four envelopes: drag a modulator's handle onto any knob on any page. The knob shows the modulation moving. Plus a modulation matrix and processors (rectify, quantize, lag...) for deeper patches.

Layers, effects, presets
  • Layer: two sounds in every voice, morphed into one filter.
  • Ten effects: distortion, bitcrusher, chorus, flanger, phaser, EQ, compressor, delay, reverb, width.
  • 300 factory presets, a browser with search and favourites, MIDI learn on every control.
Holon's CHORDS page: a progression in 16 slots with roman numerals, and suggestions for the next chord
CHORDS: a progression, and what could come next.
Holon's ARP page while playing
ARP: the arpeggiator and step lanes, playing.
Holon's FM page: six operators and the algorithm diagram
FM: six operators, twelve algorithms.
Holon with modulation moving on the knobs
Modulation you can see, right on the knobs.
Get Holon

Not on sale yet. The price and the download will be in the shop.

To the shop
Coming soon

Resampler

Catch a loop and get variations back. Very musical, or completely crazy: nothing bland in between. The working name may still change.

Musical
Crazy
Screenshot needed: the Resampler window Pink on aubergine grey, once there is a first UI.
Catch

It listens all the time. Like what just happened? Grab the loop, no recording needed.

Vary

Get a set of variations of the loop, from small musical changes to something that barely remembers where it came from.

Grains

Tiny pieces of your loop, played in key, and played by the rest of the family through ARK Link.

The Resampler is being planned now. What's on this page is the idea, not a list of finished features.

Shop

VST3 plugins for Windows, made for Ableton Live. Every plugin works on its own, and plays together with the others through ARK Link.

Not open yet. Prices, the checkout and the downloads are still being set up; the buttons below are placeholders.

Effect

Orbiton

Orbiton's window

A step filter that plays melodies in your key. 52 filter models, sequencer, lanes, a singing delay, MIDI drag-out.

€ — price to be set
More
MIDI generator

Orbital

Orbital's window

Random melodies and rhythms you can steer, with a Déjà Vu memory. Always in key. Sends its notes to the whole family.

€ — price to be set
More
Synth

Holon

Holon's window

A polyphonic synth with chords, an arpeggiator and a step sequencer built in. Analog, FM and layered sounds, 300 presets.

€ — price to be set
More
Bundle

The family

Every AR-K plugin together, so they can play together from the first minute. Whether the bundle includes plugins that come later is still to decide.

€ — price to be set
Effect · Coming soon

Resampler

Catch a loop and get variations back, musical or crazy. Being planned now.

1 · Pay

A safe checkout from a payment service. It handles the card payment, the receipt and the VAT for your country.

2 · Download

You get an email with the installer and your licence.

3 · Play

Install, open Live, and the plugin appears under AR-K AUDIO. Add another AR-K plugin and they find each other.

Questions

What do I need?

Windows (64-bit) and a host that loads VST3 plugins. AR-K plugins are made and tested in Ableton Live first.

Is there a Mac version?

Not now: the plugins are Windows-only for the moment.

Do I need all the plugins for ARK Link?

No. Every plugin works on its own. ARK Link starts to matter when you have two or more: they share their key, notes and rhythm without any routing.

How many computers can I use?

To be decided with the licence system.

Can I get a refund?

The refund policy will be written here before the shop opens.

About AR-K AUDIO

AR-K AUDIO makes plugins that stay in key and play together, built on one shared core and tested in Ableton Live.

Who we are
Text to write Who makes AR-K AUDIO, where, and why. A photo is optional.
Contact
Contact details to choose An email address for the brand, and any socials (YouTube, Instagram...).
The logo

The hyphen in AR-K is Orbit, arms up, like on a fairground ride. He thought the gap was a stage.

The AR-K AUDIO logo
News
Newsletter or updates: to decide A sign-up form needs a mailing service; nothing is collected yet.