Unleash the Raw Power of the Commodore 64’s Legendary Sound Chip

Step into the authentic world of 8-bit synthesis with reSIDue – the ultimate Commodore 64 SID chip synthesizer for modern music production. When vintage meets cutting-edge, you get the purest, most accurate SID emulation ever created.

Feel the nostalgia. Hear the authenticity.

Built on the battle-tested reSID engine with over two decades of meticulous research and development, reSIDue doesn’t just approximate the SID sound – it IS the SID sound. Every pulse, every filter sweep, every distinctive artifact that made the C64’s audio legendary.

No compromises. No shortcuts. Pure SID.

Forget simplified recreations. reSIDue gives you direct access to every SID register, letting you program the chip exactly like the demoscene legends did. With advanced wavetable control over every parameter and built-in conditional logic, you’ll craft sounds that would make Rob Hubbard proud.

From bedroom producers to professional studios, reSIDue integrates seamlessly into your workflow as a VST3 plugin or standalone application. Whether you’re crafting chiptune masterpieces, adding retro flavor to modern tracks, or exploring the sonic frontiers of 8-bit synthesis, reSIDue is your gateway to the golden age of computer music.

Experience the sound that defined a generation. Available late 2025.

Feature List

Residue: Feature Overview

The Ultimate SID 6581 Emulation

• Authentic Core Sound: Powered by the renowned reSID emulation engine, meticulously calibrated for the most accurate digital reproduction of the MOS 6581 chip.
• True 3-Voice Architecture: Faithful emulation of the original hardware, complete with independent oscillators, filters, and amplitude modulators for each voice.
• Full Register Control: Direct access to the complete SID register map. If the hardware could do it, Residue can do it.

Revolutionary Per-Register Wavetable System

• Individual Wavetable Lanes: Unprecedented control with five independent, synchronized wavetables targeting the core SID functions:
  • Frequency (D400-D401): 16-bit precision for precise pitch sequences and melodic arpeggiation.
  • Pulse Width (D402-D403): 12-bit control for dynamic, phasing waveform modulation.
  • Control (D404): Sequence waveform changes (Noise, Saw, Pulse, Triangle), sync, ring mod, and gate triggers.
  • Attack/Decay (D405): Animate your sound’s punch and initial fade.
  • Sustain/Release (D406): Program evolving tails and intricate rhythmic cuts.
• Step-Sequencer Workflow: Intuitive grid-based editor for programming complex, evolving sequences step-by-step.
• Command Flexibility: Use Absolute values, Relative offsets, and Repeat/Loop commands to create intricate patterns and musical phrases.
• Visual Feedback: Real-time displays show the exact effect of each step on pitch, pulse width, and waveform.

Modern Workflow & Integration

• VST3/AU/Standalone: Full compatibility with all major DAWs (Windows & macOS).
• Polyphonic Voice Management: Play chords and layers with intelligent voice allocation.
• MIDI Learn & DAW Automation: Map any parameter to your MIDI controller or DAW automation lanes for tactile, performative control.
• Comprehensive Preset Library: Jumpstart your creativity with a vast collection of painstakingly crafted presets, from classic C64 sounds to modern mangled textures.
• Resizable Vector UI: A sleek, modern interface that stays crisp at any size, from compact to full-screen.

Professional Sound Design Tools

• Dual Visualizers: Built-in oscilloscope and spectrum analyzer for precise sound monitoring.
• Global Effects Rack: Studio-quality built-in effects including Delay, Chorus, and Reverb, tailored to complement the SID’s raw character.
• Advanced Filter Routing: Flexible options to route voices through the iconic multimode analog filter or directly to output.
• Chip Model Selection: Switch between the raw, gritty character of the 6581 and the cleaner, more precise 8580 model.

Ideal For:

• Chiptune & Retro Composers seeking authentic SID sound and behavior.
• Bass & Electro Producers looking for that iconic, gritty, and digital bass texture.
• Sound Designers & Film Composers who need to create unique FX, textures, and futuristic soundscapes.
• Any Producer wanting to inject a dose of raw, unpredictable, and iconic digital character into their tracks.