Bitcrust is a polyphonic synthesizer built on in-house MOS 6581/8580 style DSP. Twelve voices, three oscillators per voice, thirty-six independent chip instances. 64-bit float internally.

Synth:

• 12-voice polyphony, 3 oscillators per voice with independent volume, pan, and ADSR.
• TPT state-variable filter with simultaneous LP, BP, and HP outputs; switch between 6581 and 8580 curves.

Modulation:

• 8-slot matrix, 9 sources, 65 destinations across synth, arp, and FX.
• 3 global LFOs (7 shapes, tempo-sync, retrig) and a dedicated modulation envelope.
• Bipolar depth per slot.

Effects:

• 6-slot rack, freely reorderable, per-slot bypass and dry/wet.
• Drive, Bitcrusher, Delay, Chorus, Reverb, Compressor, Limiter.

Sequencing:

• Tempo-synced arpeggiator (Up, Down, UpDown, Random).
• 16-step sequencer with per-step pitch, gate, velocity, and slide.

Presets and themes:

• 115 factory presets across 10 categories, with search, tag filters, favourites, and import/export.
• 14 bundled themes.

Monitors

7 real-time displays: oscilloscope, vectorscope, spectrum analyser, 3D spectrogram, correlation history, LUFS loudness, stereo field. Rail, full-screen, and hidden modes.

Formats and platforms:

• macOS / iPadOS: AUv3, Standalone. App Store, $1.99, universal purchase.
• Windows x64: VST3, Standalone. Gumroad, €1.99.
• Linux x64/arm64: VST3, LV2, Standalone. Gumroad, free.

While the Apple App Store sits on the review of the MacOS desktop version, get it for free here.

Manual, changelog, etc: anode-labs.com/bitcrust

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