Free

Robbie

We all need a Robbie.

Free. No account, no licence key.

1,264 downloads

Robbie is the friend who never asks what the session is for and is simply up for playing, as a synthesiser: sixteen voices, two oscillators and a sub, a filter worth driving. Nothing to set up. Load a sound, hit a key, lean on it.

“Please add a keyboard to this fabulous VST and it will be perfect. Congratulations on your work.”
Franck Boinet
“Robbie is a 16-voice virtual analog synthesizer with two oscillators, a sub oscillator and a multimode filter. Every feature, including 613 presets, is free to use, with no account and no licence key.”
DTMer.infoJapanese music production site · translated from Japanese

Get the highlights.

Press play first

Slow Light.

Ambient in D flat: forty-eight sounds from an empty patch, and every one of them is a preset.

Two stories

Two stories about Robbie.

Every instrument you hear, the orchestra included, is a Robbie sound, played from a written score by the same engine you will run.

Lantern Sky is Robbie’s dream, a slow waltz that belongs on a music box. Phantasia Electronica is ten minutes in six movements: Robbie arrives in an empty house, and the ghost of an old composer writes his fantasy for it.

Pieces

Three more, and nobody touching a key.

Horizon is the soundscape, long tones with everything moving underneath. Undertow is a film cue, dark, low and in no key. Euclid is acid electro where every rhythm is a Euclidean one. Every note is written into a score and played by the same engine your host will run.

What it is

Everything in front of you.

Two oscillators and a sub, a multimode filter with its own envelope and a resonant high pass in front of it, three envelopes, two LFOs, Poly Mod, a modulation matrix, saturation, chorus, two delays and a reverb. Four of these can run at once as separate parts, which is what the Soundscapes use: one key, four instruments.

The oscillators are band limited, so a saw stays a saw at the top of the keyboard. Nothing steps when you turn it, and changing preset with a key held cannot click.

The panel

An instrument on a table.

A real object rendered in three dimensions, with wooden cheeks, a brushed anthracite plate and switch caps that light from inside. The camera holds four positions and moves between them by itself; it never swings loose.

The controls behave like hardware, and MIDI learn is a right-click away. The display is an OLED with six keys and a data wheel, and the whole manual lives inside the instrument.

The Robbie front panel seen from above

Why it is built this way

It is all about playing.

Every factory sound is programmed as a performance rather than a snapshot. Velocity opens the filter, aftertouch leans on the cutoff and brings in the vibrato, the mod wheel is one escalation, and the touch ribbon along the front edge is the wild card.

A list of parameters makes you configure. A plate with knobs on it makes you reach out and turn one, and then you have lost an hour. That hour is the entire point.

The sound

Oscillators, filter, and the bit in between.

SHAPE morphs continuously through saw, triangle, pulse and sine, with hard sync, ring modulation and FM from oscillator two. The filter does twelve and twenty-four decibel lowpass, highpass, bandpass and notch, self-oscillates, and drives with four characters: clean, diode, fold and crush.

Poly Mod sends the filter envelope and oscillator two to the pitch, shape and pulse width of oscillator one and to both filters. Put oscillator two at audio rate into the cutoff and listen to the filter growl.

The room

A warm hall, and sounds that move.

Room, hall, plate and spring. The hall started from a measurement of a real reverb tail, two and a half seconds in the mids, then voiced warmer than the room it came from, with thirty-two delay lines of prime lengths keeping the tail dense and smooth.

Pads, strings, plucks and bells place every note in its own spot across the stereo field. Bass, leads and drums stay in the middle, where a mix wants them.

Measured, not assumed

Aliasing in numbers, not adjectives.

The oscillators are tested against a harmonic grid at 44.1 and 48 kHz. Hard sync measured minus twenty-three decibels of alias; fixed at the edge, it is now minus a hundred and twenty-nine.

Every factory preset is rendered offline, checked for silence and level, and the whole bank is trimmed so changing sound does not change how loud your mix is.

Presets

613 sounds, each with something to find.

Sixteen groups, a Signature bank of forty-eight made by hand, and the four-part Soundscapes. They come in banks of twelve, played from the twelve keys above the ribbon, and every preset carries a line telling you what it is for. Fifty of them, drawn at random, are on this site.

Tech specs

Voices
16, poly, mono or legato; four parts on four MIDI channels
Oscillators
Two, plus a sub: saw, triangle, pulse, sine, noise; continuous shape morph; hard sync, ring modulation, FM, pulse width modulation; oscillator two off the keyboard or as an LFO
Filter
LP 12, LP 24, HP, BP, notch; self-oscillating; key tracking; drive in four characters: clean, diode, fold, crush
High pass
20 Hz to 2 kHz, with boost and resonance up to a two pole resonant filter
Poly Mod
Filter envelope and oscillator two to oscillator one pitch, shape and pulse width, cutoff and high pass
Modulation
Three envelopes; two LFOs with eight shapes, free or host-synced, 1/64 to 8 bars, triplet and dotted; modulation matrix
Unison
Up to 8 voices with detune, spread and drift; chord memory; last, low or high note priority
Effects
Saturation; chorus, two flangers, three phasers; two delays, digital or bucket brigade, series or parallel; reverb: room, hall, plate, spring
Performance
Velocity, aftertouch, mod wheel and a touch ribbon, on every factory sound
Presets
613 in sixteen groups, in banks of twelve; Signature bank; four-part Soundscapes
Formats
macOS: VST3, Audio Unit, Standalone
Windows: VST3, Standalone

We all need a Robbie.

Free, for everyone. No account, no licence key, nothing that expires. If Robbie makes you happy, treat us to a coffee.

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