Sweet Berta's panel

Semi-modular monophonic synth

Sweet Berta

One voice, patched your way. Two oscillators, a ladder filter, a sequencer and an arpeggiator, a patch bay of cables, and a spring reverb.

The launch

Free to claim

Opens: October 21, 2026 at 12:00 AM UTC. No closing date yet.

Sweet Berta installs with the Ozner Audio app and a free account. Get the app

AUVST3Standalone

The gallery

Every side of the panel, as the plugin draws it
The Front

The Front. Macros, the Case, the synth's modules, the Pedalboard and the keyboard, in the Hardware theme.

Three looks

Settings › Theme, any time: the sound never changes
The Front in the Hybrid theme

Hybrid

Slide switches, keycaps and knurled knobs: gear drawn flatter, still with a hand on it.

241–264 of 313

LEADInterval Climb

A saw lead that climbs by interval: osc 2 starts a fifth above and the Interval macro runs its Detune up to an octave and a fifth, nineteen semitones, in one sweep, with the knob's travel set to Range 19. Turn it slowly for a rising harmony, fast for a siren of fifths. Macros: Interval, Cutoff, Space. Macro 8, Master, is the output level.

interval · glide · sweep · dramatic
BASSKeyed Pulse Bass

KB OUT into CUTOFF IN on top of 1:1 tracking: low notes are dark and round, high ones bright and nasal, so a line changes colour as it climbs. A slow LFO turns the pulse's width. Play lines that jump across two octaves. Macros: Cutoff, Bite, Rate. Macro 8, Master, is the output level.

patched · classic mono · pulse · key tracked
KEYS/PLUCKMinor Third Pluck

A short plucked saw with a second voice a minor third above, three semitones: one finger plays a minor chord shape, the sad little interval inside the old seven-semitone Detune. Left at Range 7, where a turn of the knob still reaches a fifth. Quick and dry, for staccato lines. Macros: Third, Cutoff, Decay. Macro 8, Master, is the output level.

minor third · chord · short · dry
PADLiquid Pad

A warm pad turning slowly in a tub of its own: two detuned saws through a soft ladder into Jacuzza alone, round bubbles drifting up and down through them in series with a breath of jets, the lows left solid. Hold long notes and let the water turn; Swirl speeds it up. Macros: Swirl, Bubbles, Jets, Bright. Macro 8, Master, is the output level.

liquid · phaser · warm · slow · drifting
LEADTake-Off Lead

A soaring saw lead flanged by Jacuzza's jets, a deep rush climbing and falling under every note. Take-Off does nothing until halfway, then holds Surge: the swirl speeds up and the jets deepen over a second and a half, then settle when it comes back down. Learn it to the mod wheel and pull it up for the take-off. Macros: Take-Off, Jets, Swirl, Bright, Glide, Space. Macro 8, Master, is the output level.

patched · jets · flanger · soaring · surge
BASSWhirlpool Bass

A saw-and-square bass whose top lurches through Jacuzza while its bottom stays put: under 120 Hz the tub leaves it dry, so the weight holds while bubbles and jets churn over it, every swing a different height. Play a riff of held notes and let it turn. Macros: Churn, Swirl, Cutoff, Jets. Macro 8, Master, is the output level.

churning · phaser · moving · wobble
KEYS/PLUCKPaisley Stab

A psychedelic stab: two saws a fifth apart snapped shut by the filter, through Jacuzza on Split, its bubbles and jets side by side and wandering, then ping-pong echoes and a spring, so every hit swirls off into the room. Play short hits and move them around the keyboard; the fifth moves with you. Macros: Swirl, Jets, Echo, Spring, Bright. Macro 8, Master, is the output level.

stab · psychedelic · fifths · echo · spring
FX/PERCGeyser

Pressure building under the ground: pink noise and two low saws swell through a fuzz into Jacuzza's deep, dark jets and a huge hall. Erupt lets the swell open the tub: turned up, Surge takes hold as the swell crests, the swirl racing and the jets deepening, and lets go as it falls; at full Erupt it holds through the sustain until you let go. Hold a low note for the build and let go for the steam. Macros: Erupt, Jets, Fuzz, Space, Rise. Macro 8, Master, is the output level.

patched · swell · noise · fuzz · cinematic
BASSThumb Funk

The round funk bass of the classic monos: one saw, the ladder low with no resonance, a quick envelope that closes to nothing while the note stays up, and Earth's harmonics so the round tail reads on small speakers. Play short, syncopated sixteenths and leave space. Macros: Cutoff, Env Amt, Decay. Macro 8, Master, is the output level.

funk · round · classic mono · punchy · small speakers
BASSElastic Funk

A squelchier funk bass: resonance up, a deeper, faster envelope and a square under the saw. Harder notes squelch more. Play it with dynamics, ghost notes soft and accents hard. Macros: Squelch, Decay, Cutoff. Macro 8, Master, is the output level.

patched · funk · squelchy · velocity
BASSRubber Walk

A bouncy, rubbery round bass that slides between overlapping notes, with a short slap echo behind it and Earth's harmonics so the line reads on small speakers. Play legato to slide, detached to jump; it walks well. Macros: Glide, Cutoff, Echo. Macro 8, Master, is the output level.

round · rubbery · glide · echo · small speakers
BASSProg Glide Bass

A singing, gliding bass for long prog lines: a saw and a detuned square slide between overlapping notes, with a light chorus spreading it. Play legato runs and let it swoop. Macros: Glide, Cutoff, Chorus. Macro 8, Master, is the output level.

prog · glide · chorus · classic mono
BASSWooden Upright

A woody, plucked upright: a triangle with a whisper of saw and noise for the finger, dying away like a string through a gentle 12 dB slope, in a small wooden room, with a little of Earth's harmonics so the walk is heard on a laptop. Play walking quarter notes; harder notes speak brighter. Macros: Ring, Tone, Room. Macro 8, Master, is the output level.

patched · upright · woody · plucked · round · small speakers
BASSFelt Round

A soft, rounded saw through the ladder at its gentlest slope, 6 dB: the harmonics are there but felted over, warmed by a gentle saturation, Earth's Body keeping it heard on a laptop, and a light squeeze holding it even. Warm under keys and vocals; play it sustained or short. Macros: Tone, Body, Squeeze, Warmth. Macro 8, Master, is the output level.

round · warm · soft · compressed · saturated
BASSSnap Pluck Bass

A short, snapping pluck: saw and square, the envelope slamming the ladder open and shut and the note gone in a quarter second, a hard squeeze on top. Play tight, repeated eighths. Macros: Decay, Cutoff, Snap. Macro 8, Master, is the output level.

plucked · short · punchy
BASSFinger Bass

An electric finger-style bass: a triangle with a narrow pulse for the string's edge, a gentle 12 dB slope and a long, natural decay, evened by a slow compressor, Earth's harmonics carrying it onto small speakers. Play it as a bassist would, notes held for their length. Macros: Tone, Edge, Decay. Macro 8, Master, is the output level.

finger · plucked · round · electric · small speakers
BASSPalm Mute Bass

A muted, thudding pick bass: the note is gone almost before it starts, with the faintest pitch dip on each pluck. Play fast, driving eighths; it stays tight at any tempo. Macros: Length, Cutoff, Thud. Macro 8, Master, is the output level.

patched · muted · plucked · short · tight
BASSHollow Pluck Bass

A hollow, nasal pluck: the mixer runs through the HPF before the ladder, so the low end is thinned and the pulses honk. Cuts through a busy mix; play staccato lines in the octave above C2. Macros: Hollow, Cutoff, Decay. Macro 8, Master, is the output level.

patched · plucked · hollow · nasal
BASSOctave Bounce

A disco-style octave bass: a saw with a square an octave above, a short filter snap over a held level. Play the root and its octave in alternating eighths. Macros: Cutoff, Octave, Decay. Macro 8, Master, is the output level.

octave · disco · bouncy · plucked
BASSSlap Pop Bass

A slapped bass: a fast pitch pop and a velocity-driven filter snap on every note, a steep compressor catching the peaks. Hit low notes hard for the slap, high ones softer for the pop. Macros: Pop, Cutoff, Decay. Macro 8, Master, is the output level.

patched · slap · funk · velocity · plucked
BASSBig Mono Bass

The classic two-saw mono bass: both oscillators at 16', slightly apart, warming the mixer, into the 24 dB ladder with a firm envelope, then a warm saturation. The one to reach for first; plays anything from roots to busy lines. Macros: Cutoff, Emphasis, Decay, Warmth. Macro 8, Master, is the output level.

classic mono · fat · warm · saturated
BASSFifth Stack

Osc 2 a fifth above osc 1, both saws: every note is a power chord, thick and open, a warm saturation gluing the two. Play single roots; the fifth comes free. Macros: Cutoff, Fifth, Decay, Warmth. Macro 8, Master, is the output level.

classic mono · fifths · power · saturated
BASSBrass Bass

A brassy mono bass that swells: a short attack on the envelope lets each note bloom open, like a horn section's low end. Play held notes on the beat and let them open. Macros: Swell, Cutoff, Brass. Macro 8, Master, is the output level.

brassy · swell · classic mono
BASSWah Wheel Bass

A funk bass with an auto-wah on the mod wheel: wheel down it is a plain resonant saw-and-square bass; push the wheel up and the LFO sweeps the ladder. Ride the wheel on held notes. Macros: Rate, Wah, Cutoff. Macro 8, Master, is the output level.

mod wheel · wah · funk · moving