Multi-engine synthesizer v1.3.1

39 engines.
Two layers.

Sound and sequence in one instrument. Build analogue basses, FM keys, resonant strings, granular textures and percussion. Give each layer its own evolving pattern.

VST3 & AU · macOS & Windows
Also on iPhone & iPad ↗

TRESSE / Desktop8 + 8 voices

Engine, filter, envelopes and effects. The same controls across all 39 engines.

Hear Tresse.

No external effects.
Light mastering on the mix.

Demo 010:00 / 2:59

The instrument

Sound, sequence
and modulation.

Two independent layers of eight voices each. Choose an engine for each layer, shape the sound, then build the musical idea with sequencing and modulation.

Synthesis

39 engines. Familiar controls.

24 engines from Classic Plaits, plus 15 developed by Våld Labs. Move between synthesis types through the same macro controls.

Sequencing

One pattern per layer.

The built-in VEKTE sequencer offers seven algorithms, scale and chord controls, probability, swing and humanisation. Patterns are deterministic, so a saved patch brings back the same sequence.

Wave interference · Euclidean · Random walk · Logistic map · Cellular automata · Kaprekar · Fibonacci

Modulation

Movement across the patch.

Three LFOs and two generative MOD lanes add vibrato, filter movement and shifting timbres, from a steady pulse to less predictable motion.

Watch & listen

Tresse in use.

Watch on YouTube

Sound shaping

Make the sound
your own.

Filtering, envelopes, modulation and stereo shaping take a patch from its first tone to a finished sound.

Morphing Multimode Filter

Move continuously between low-pass, band-pass, notch and high-pass. Soften a bright patch, bring out its harmonics or push the resonance.

Independent envelopes

Shape volume and filter movement separately. Sharp attacks for percussion and plucks; slow builds and long fades for evolving textures.

Width and drift

Eight voices per layer, with detune and stereo spread. Keep the result focused or open it into a broad, drifting texture.

Wavefolding and effects

Add harmonics after the filter. Bring bite to a clean tone with wavefolding, crush and distortion, or add depth with chorus.

48 kHz synthesis core

The synthesis core runs internally at 48 kHz, with sample-rate conversion to match your DAW session.

Save it. Or start somewhere new.

Your settings stay with your DAW project. Use RANDOM to generate a new patch across the engines, then follow what catches your ear.

The engine collection

39 ways to
start a sound.

All 39 engines are included in the desktop instrument. Explore them by synthesis family.

24 + 15

Classic Plaits engines + Våld Labs engines

01Subtractive05

00EastCoast

Saw and square waves through an analogue-modelled resonant low-pass filter.

07Chiptune

NES-style pulse, triangle and noise generators with an arpeggiator. TIM controls the arpeggio speed and chord range.

08DualDet

Two detuned, morphing saw/square oscillators with stereo spread.

25ByteBeat

Eight mathematical formulae for raw, crunchy and generative chiptune sounds.

27SuprSaw

Seven band-limited saw waves with per-voice detune for stacked leads and chords.

02FM & phase distortion10

01PhaseDist

Casio-style phase distortion. Changes the phase of a cosine wave to create resonant timbres.

02DX7 I

First bank of six-operator FM patches, from electric pianos to bass.

03DX7 II

Second bank of six-operator FM patches, including bells and chimes.

04DX7 III

Third bank of six-operator FM patches, including brass and pads.

10PhaseMod

Feedback phase modulation, from smooth woodwinds to strong FM textures.

15Speech

Vowel formants and spoken words, with control over intonation.

26CZ-PD

Expanded phase distortion with complex wave shapes and harmonic control.

28Formant

A five-position vocal resonator. MOR moves between vowel sounds.

292-OpFM

Two-operator FM with continuous modulator-to-carrier feedback.

38ValdFM

Multi-wave FM with ratios from 0.5 to 8.0, index modulation and carrier/modulator wave shaping.

03Additive & wavetable07

05Terrain

A two-dimensional wave-terrain scanner for evolving timbres.

09WavShape

Waveshaping and wavefolding add harmonics and metallic character.

12Additive

Harmonic sine partials, from pure tones to organ-like sounds.

13Wavetabl

Scanning through single-cycle wavetables for changing synthetic textures.

30WavFold

Band-limited pulse and saw oscillators through a multi-stage wavefolder.

35Drawbars

Drawbar organ with cabinet tilt EQ and overdrive.

36Complex

Frequency modulation, phase warping and wavefolding in one oscillator.

04Chords & granular06

06StrChor

A vintage-style string ensemble with stereo chorus.

11SawCloud

Detuned saw waves in a granular cloud.

14Chords

Up to four-note chords from one note. HAR selects chord shapes and TIM selects scales.

16Swarm

Eight oscillators with sweepable micro-detuning.

18Particle

Short noise grains for dust, clicks and irregular micro-rhythms.

37Grains

Pitched granular noise for crackle, rain and textured soundscapes.

05Physical & resonators06

19RingsInh

Inharmonic resonances inspired by metal bars, glass tubes and ceramic blocks.

20RingsMod

A modal resonator for struck plates, marimbas and bells, responsive to velocity.

24Karplus

Karplus–Strong plucked-string modelling with a filtered feedback loop.

32Modal

A modal resonator for wooden bars, metal rods and bowed plates. Long releases reveal evolving overtones.

33SymStr

Three coupled strings with sympathetic resonance.

34CombRes

Four feedback-tuned delay lines for plucked and hollow resonant sounds.

06Percussion & noise05

17FiltNois

Noise through multimode resonant filters, with random pitch movement.

21BassDrum

Analogue-style kick with pitch sweep and drive. Short decay gives a tight hit.

22Snare

Analogue-style snare combining a resonant body and filtered noise.

23HiHat

Metallic, multi-oscillator hi-hats with exponential decay.

31NsDrums

Digital percussion combining a fast pitch sweep and filtered noise.

Interactive playground

Get a feel for Tresse.

Play a note or run the arpeggio, then shape the sound.

Classic Plaits / Virtual analogueReady
50
40
50
80
20
Choose an engine

Three original Classic Plaits engines, running live in your browser.

Hardware / In development

It started as
a box of sounds.

Tresse began as a standalone hardware instrument built in Lisbon. The plugin carries that idea into your DAW, with two independent layers, generative sequencing and more room to explore.

The hardware is being developed alongside the software. Target release: Q1 2027.

The standalone prototype. Work in progress.

Tresse, in your hands.

A compact box with physical controls, built around a custom PCB and an ESP32-S3 processor.

Polyphony
3 voices, individual envelopes
MIDI
USB-C, Bluetooth and DIN
Controls
4 potentiometers, 4 encoders, OLED display
All prototype specifications
Sound shaping
Wavefolding, detune, ring modulation and chorus
Filter
4 types, envelope follower
LFO
6 shapes, multiple destinations and sync modes
Performance
Vibrato, portamento and ±2-octave shift
Control modes
Normal, MOD and SHIFT
Presets
1,000+ user, generated and branched presets
Patch naming
Procedural names for generated patches
Audio output
24-bit PCM5102A DAC
Processor
ESP32-S3, custom PCB

From the beta

What testers said.

From the public iOS and desktop beta threads.

“The more I play with this, the more I love it. Great balance between simplicity and complexity. Has the spirit of the Mutable Instruments approach but re-imagined.”
Loopy Pro forum
“Really cohesive and intuitive all round, I was able to understand it without the manual. The sequencer is fantastic.”
Elektronauts
More from the beta
“This is inspiring to play with. You’re doing something good here. This is the first iOS synth I enjoy playing standalone and don’t feel the urge to use a host sequencer.”
Loopy Pro forum ↗
“This may be one of the finest Plaits implementations out there, with lots of custom engines. Very intuitive and simple on the surface yet deep and powerful.”
Loopy Pro forum ↗
“A great app with a lot of potential. I’ve been looking for a synth with a good touchscreen UI, lots of engines and easy randomisation. This ticks all those boxes.”
Elektronauts ↗

Get Tresse

One purchase.
All 39 engines.

The full desktop instrument, with unlimited user presets and patch generation across every engine.

macOS & Windows

Desktop licence

€29.99

One-time purchase · All 1.x updates included

  • All 39 engines, two layers and generative sequencing
  • Unlimited user presets and RANDOM patch generation
  • VST3 & AU on macOS · VST3 on Windows
  • Share patches as text keys, QR codes and share cards
  • One licence for your own computers, with offline use
Buy Tresse €29.99

Secure checkout via Lemon Squeezy. Licence key delivered by email.
macOS Universal installer · Windows x64 installer

All downloads & previous versions ↗
Also on Gumroad ↗

iPhone & iPad

Tresse Mobile

Free download · Optional one-time Pro unlock

  • Start with a free selection of engines
  • Pro unlocks all 39 engines and unlimited user presets
  • RANDOM patch generation across all engines with Pro
  • Standalone app and AUv3 for hosts including AUM and GarageBand
  • One Pro unlock covers the app and AUv3 extension
Download on the App Store ↗

The iOS purchase is separate from the desktop licence.