BETA 0.1 VST3 · AU · Standalone for macOS and Windows

Hear the sound take shape.

Vaelis is a subtractive synthesizer for people who take their sound seriously. Character, immediate response and a clear interface, so you spend less time configuring and more time creating. A synthesizer that follows your music, from the first sketch to the final version.

  • 7 days free, no card needed
  • macOS Intel and Apple Silicon
  • Windows 10 / 11
  • Full manual
Vaelis interface: oscillators, filter, envelopes, LFOs, mixer, central LCD with arpeggiator and effects, and keyboard.
2 parts · A/B 294 automatable parameters 16 arp steps 7 effects
2parts playing together: a pad underneath, a lead on top
8waveforms per oscillator, with unison up to 8 voices
16arpeggio steps you draw by dragging the mouse
294parameters to automate in your DAW, each with its own unit
Features

Everything you expect from a subtractive synth. Nothing in the way.

Classic signal flow, large knobs and a central display showing the value of every parameter you adjust. You never have to guess.

Two parts, one sound

Part A and Part B each have their own oscillators, filter, envelopes, LFOs and modulation, and they play at the same time. Stack a pad with a pluck, or a bass with a lead, and balance them in the mixer.

Part A2 osc · filtro · amp env
2 Mod Env · 2 LFO · 4 Misc
Part B2 osc · filtro · amp env
2 Mod Env · 2 LFO · 4 Misc

Oscillators with weight

Saw, Square, Triangle, Sine, Noise, Pulse 25, Pulse 12 and TriSaw. With up to 8-voice unison, detune and stereo spread, a simple lead gains body and width in a few adjustments.

A filter that answers right away

Low Pass, High Pass, Band Pass and Notch, at 12 or 24 dB, with Drive, Resonance and Key Track. Turn the cutoff and hear the change that instant, with no stepping.

Modulation, straight to the point

Per part: 2 Mod Envs, 2 LFOs and 4 Misc blocks with mod wheel, aftertouch and more. Each source has 2 destinations. Movement in the sound without needing a diagram.

Mod Env 1·2LFO 1·2Misc 1–4Mod WheelAftertouch

Automation that never pops

Cutoff, resonance, levels and effects are smoothed. Switching an effect on is a crossfade, not a cut. If you want proof, the measured numbers are just below.

An arpeggiator you draw

Up, Down, Up/Down, Random, As Played and Chord, with 11 timing resolutions (including triplets). Every step has transpose, velocity and tie, and the grid is made for drawing patterns by dragging, not clicking one at a time.

Try it now

Seven effects, each with its own identity

Distortion, Phaser, Chorus, Equalizer, Delay, Reverb and Compressor, each with its own on/off. See what every one does to the sound below.

See the effects

Try it

Paint an arpeggio. Hit play.

This is an interactive replica of the Vaelis step editor. Click and drag across the bars to draw several steps at once, use the arrow keys and turn the knobs. The idea becomes clear in seconds.

ARPEGGIATOR · STEPS 1–8 Touch or hover a step

Click/drag = set · arrows = adjust · double-click = clear step

Demo sound

Demo built with Web Audio in the browser. It is not the plugin audio; it shows how the arpeggiator and filter work.

Signal flow

Easy to follow. Hard to run out of.

Each part follows the classic subtractive path: oscillator, filter, amplifier. At the end, both meet in the mixer and go through the effects.

PART Aits own edit
Osc 1 + Osc 28 waves · unison
Filtro ALP · HP · BP · Notch
Amp Env AADSR
Mix Apart level
PART Bits own edit
Osc 1 + Osc 28 waves · unison
Filtro BLP · HP · BP · Notch
Amp Env BADSR
Mix Bpart level
Main Volumemixer
7 effectsDist · Phaser · Chorus · EQ · Delay · Reverb · Comp
Outputwith a safety limiter
Effects

Seven effects. Each with a personality.

Switch them on and off without a click, right from the central screen. The animations below show what each effect does to the signal.

Presets

Bring your sounds. Keep your own.

Vaelis reads compatible .fxb banks and .fxp programs, and saves your sounds as .vaelis files that work the same on Mac and Windows.

  1. Click ImportPick the bank or program you already have.
  2. Browse the central screenPresets show up numbered on the LCD; large banks are split into groups of 64.
  3. Save what you likeUse Save to store the sound as .vaelis and open it in any project.

Import only presets you have the right to use. Conversion is approximate: the sound comes out close, but it may not be identical to the original.

Init SawSuper LeadWarm PadPluck BassArp PluckWobble BassGlass KeysDual StringsDub WobbleReese Bass808 Bass DrumDeep SubAcid BassTrap PluckSky PadCrystal BellChord GateRave Hoover
Quality

Built for the stage and the studio.

Vaelis has its own test suite that runs without a DAW and measures what you would hear: automation stepping, clicks and whether the project comes back as it was.

  • Clean automationSweeps of cutoff, resonance, volume and effects measured by FFT, all below −60 dB of stepping noise.
  • No clicks on voicesVoice stealing and mono retrigger pass through a declick of a few milliseconds.
  • Projects come back the way you left themEvery parameter is restored exactly when you reopen a project. Corrupt state is rejected without freezing.
  • Validatedpluginval at level 10 (VST3 and AU) and auval on the Audio Unit.
vaelis_stress — test without a DAW
Subscription

Bring Vaelis into your studio.

Plugin for macOS and Windows, every preset, the manual and all updates. Install on up to two computers and manage everything from your dashboard, no support ticket needed.

Read the manual

Monthly

Flexible
R$ 29,90/month

Billed monthly. Cancel anytime, no penalty.

  • Plugin for macOS and Windows
  • Every preset and every update
  • Up to 2 computers at the same time
Subscribe monthly

Automatic renewal and secure payment through Stripe. You manage or cancel the subscription from your dashboard, whenever you want. Before subscribing, try Vaelis free for 7 days, no card needed.

Frequently asked questions

Common questions

Does it work in FL Studio, Ableton and other DAWs?
Yes. Vaelis is VST3 (and Audio Unit on Mac), formats accepted by most DAWs. It was built with automation and project recall in mind, and passes pluginval at level 10. As it is still in beta, testing in real DAWs continues: if something behaves unexpectedly, send a report with the DAW and what you were doing.
What are VST3, AU and Standalone?
VST3 is the plugin format used on Mac and Windows. AU (Audio Unit) is the native Mac format, used for example in Logic. Standalone is an app that opens on its own, with an on-screen keyboard, so you can try the sound without a DAW.
Can I import presets from other synthesizers?
Yes, compatible .fxb banks and .fxp programs, as long as you have the files and the right to use them. Conversion is approximate, and the preset menu tells you which modulation destinations were not reproduced. Details are in the manual import section.
What do I need to install on Windows?
Nothing besides the plugin itself: the runtime is bundled. Run Instalar.bat. Because the beta is not paid-signed, Windows may show “Windows protected your PC”: click “More info” and “Run anyway”.
What about Mac? Will I see a security warning?
The beta is signed ad hoc, without Apple notarization. Right-click Instalar.command, choose Open and confirm once: it installs the VST3 and the AU and clears quarantine. The manual walks through the steps.
Is there MIDI learn?
Not yet. Use your DAW automation: all 294 parameters show up there, with units (Hz, ms, dB, %). Pitch bend controls pitch, and mod wheel (CC 1) and aftertouch become modulation sources.
Is the demo audio on the site the plugin?
No. The arpeggiator demo runs with Web Audio in the browser and shows how step editing works. The real sound is the plugin.
Can I try it before subscribing?
Yes. Create an account and start the 7-day free trial, no credit card required. You get a serial right away, download the installer and activate it on one computer. The full plugin is unlocked for the whole period. When you subscribe, the same serial keeps working and starts accepting two computers.