kaiosynth (Web Audio)

Experimental browser-based bass synthesizer for intense chaotic neuro sound design.

features .SCL microtuning preset support with some built-in scales.

Core Features

• 4 FM operators with dynamic modulation routing (editable UI)
• Per-operator ADSR amplitude envelopes + modulation scaling (envelope influence on outgoing FM depth)
• Unison, glide placeholder, transient tick
• .SCL microtuning preset support with some built-in scales.
• Multi-stage distortion (fold / diode / hybrid) + optional oversampled drive core
• Bitcrush & pseudo downsample
• Dual filter + comb/notch hybrid
• 4 Macros + 16-step trigger lane
• Chaos LFO (logistic map) modulating filter / drive / FM depth
• Neuron spike system (probabilistic FM depth bursts)
• Glitch stutter
• Preset system (v2) with built-ins + user save / load / import / export
• Randomization (Safe / Wild / All; envelopes + chaos + spikes)
• MIDI Support (NEW)
  • Device & channel selection
  • Note On/Off with velocity mapping
  • Pitch Bend (configurable range)
  • CC mappings (default):
    • CC1 → Macro1 (Motion)
    • CC2 → Macro2 (Drive)
    • CC74 → Filter Cut
    • CC7 → Output Gain
    • CC64 Sustain pedal
    • Channel Pressure → Macro3 (Morph)
  • MIDI Learn mode for macros (click “Learn” then move a CC)

Mod Routing Editor

• Add modulation paths: pick Source Operator → Destination Operator; set depth
• Remove paths with one click
• Normalize Depths utility rescales all mod depths to a selected max
• Presets: Loading replaces existing routes with preset routes (non-listed routes removed)
• Randomization affects existing routes; add more for complexity.

Preset JSON (v2)

Same as previous version (see earlier description) with fields:

• fm.ratios, fm.modDepths[{s,d,depth}], fm.outLevels
• envelopes[]
• chaos{}, spikes{}
• macros[], params{}

MIDI mappings are session-only (not serialized) to keep presets portable.

MIDI Usage

1. Click “Enable MIDI” (browser prompt).
2. Select input + channel (or Omni).
3. Play your controller; adjust pitch bend, mod wheel, aftertouch, etc.
4. Use “Bend Range” to set semitone pitch bend range.
5. Click a macro’s Learn button; move a CC to bind (overrides default mapping for that macro).

Build / Run

Static site: npx http-server -c-1 -p 8080 . then open src/index.html.

Safety

High gain + spikes + chaos may cause loud bursts. Keep output gain moderate and monitor levels.

Roadmap Ideas

• Preset morph slider
• MIDI clock sync & tempo follow
• MPE / per-note modulation
• Envelope MSEGs
• FFT spectral warp
• Proper oversampled bitcrush worklet
• Mod routing matrix visualization (graph)

Enjoy destroying some waveforms.