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 Hardware theme

Hardware

The panel as a piece of gear: bat levers, round arcade buttons, gripped knobs on a printed plate.

73–84 of 84

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
BASSWide Drift Bass

A wide, unsteady analog bass: each oscillator and the cutoff part left and right, and extra drift, so it shimmers across the speakers. For synthwave and slow, held lines; it narrows to a plain bass in mono. Macros: Width, Drift, Cutoff. Macro 8, Master, is the output level.

wide · stereo · analog · drift
BASSSquare Acid

Acid on the square wave: hollower and rounder than the saw, squelching hard on a short envelope, a little dirt squeezing it. Play sixteenths with some notes overlapping to slide, and hit the accents harder: velocity opens the filter further. Macros: Cutoff, Accent, Decay, Dirt. Macro 8, Master, is the output level.

patched · acid · square · squelchy · glide · velocity
BASSBurnt Acid

A saw acid line pushed through a cranked little amp, its squelch smeared into a dotted echo that bounces between the sides. Play a busy sixteenth pattern and let the echoes fill the gaps; overlapping notes slide. Macros: Cutoff, Burn, Echo. Macro 8, Master, is the output level.

patched · acid · driven · echo · glide
BASSFuzz Acid

The fuzz goes in before the filter: Puzz sits in the Case between the mixer and the ladder, so the resonant 18 dB filter squelches a fully fuzzed saw and every sweep screams. Play short, accented sixteenths low on the keyboard. Macros: Cutoff, Fuzz, Resonance. Macro 8, Master, is the output level.

patched · acid · fuzz · aggressive · glide
BASSDice Acid

Acid that twists its own knobs: every note restarts the LFO, which steps the sample and hold to a new random cutoff, so a repeated note never squelches the same way twice. Hold down a steady line of sixteenths and let it improvise. Macros: Cutoff, Squelch, Decay. Macro 8, Master, is the output level.

patched · acid · random · squelchy · glide
BASSDub Acid

A slower, rounder acid through the gentler 12 dB slope, a triangle under the saw, warmed dark by a saturation, then sent into long, dark ping-pong echoes and a touch of plate. Play sparse notes with space between them and ride Echo and Feedback. Macros: Cutoff, Echo, Feedback, Space. Macro 8, Master, is the output level.

acid · dub · echo · glide · spacious · warm
BASSLadder Snarl

Osc 2 moves the cutoff at audio rate through the ATTENUATOR, so the filter snarls with sidebands of its own, and the two oscillators a few cents apart make the snarl roll slowly. Hold notes to hear it churn; dig in with Growl. Macros: Growl, Cutoff, Bite. Macro 8, Master, is the output level.

patched · growl · audio rate · gritty