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.

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 claimOpens: 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 it313–313 of 313
Hybrid
Modern