draft: false
Name: Cosmik M1N1
short-description: >-
  Minimoog-influenced mono synth voice with two internal oscillators, external
  OSC3 pitch/CV integration, ladder filtering, USB MIDI, and Web MIDI presets.
summary: >-
  A monophonic Workshop Computer synth voice with two band-limited wavetable
  oscillators, external OSC3 pitch CV and audio return, a four-pole resonant
  low/high-pass filter, noise, ADS contours, internal LFO, MIDI CC1 modulation,
  glide, and eight factory plus eight named user presets.
Language: C++ (Pico SDK + ComputerCard)
Creator: Adrian Vos
Version: "1.0.0"
Status: Beta
License: MIT
date-created: 2026-10-03
Editor: web
uf2:
  - path: uf2/COSMIK_M1N1_1.0.0.uf2
    name: Cosmik M1N1 1.0.0

tags:
  - synth
  - midi
  - web-midi
  - minimoog-inspired
  - oscillator
  - filter

panel:
  inputs:
    - id: AudioIn1
      name: Pitch CV
      type: audio
      description: Calibrated 1V/oct pitch CV when no USB MIDI note is active.
    - id: AudioIn2
      name: OSC3 Return
      type: audio
      description: External oscillator audio return for the pre-filter mixer.
    - id: CVIn1
      name: Filter CV
      type: cv
      description: Positive filter-cutoff modulation.
    - id: CVIn2
      name: Mod Source
      type: cv
      description: External OSC3 or other modulation source selectable in the Web UI.
    - id: PulseIn1
      name: Gate 1
      type: pulse
      description: Gates the amplifier and filter ADS contours; mirrored at Pulse Out 1.
    - id: PulseIn2
      name: Gate 2
      type: pulse
      description: Additional gate input for the amplifier and filter ADS contours.
  outputs:
    - id: AudioOut1
      name: Filtered Voice
      type: audio
      description: Main four-pole filtered mono voice output.
    - id: AudioOut2
      name: Pre-filter Mix
      type: audio
      description: Mixer output before the resonant filter.
    - id: CVOut1
      name: OSC3 Pitch
      type: cv
      description: Calibrated external OSC3 1V/oct pitch CV, with C3 at 0V and shared glide.
    - id: CVOut2
      name: Loudness Envelope
      type: cv
      description: Amplifier ADS envelope CV.
    - id: PulseOut1
      name: Gate 1 Mirror
      type: pulse
      description: Mirrors Pulse In 1.

controls:
  switch:
    up:
      name: Oscillator Setup
      description: Edit the selected OSC1, OSC2, or external OSC3 page.
    middle:
      name: Filter Voice
      description: Cutoff, resonance/emphasis, and filter contour.
    down:
      name: Modulation / Noise / Presets
      description: Short hold edits modulation, a longer hold edits noise, and long holds enter preset selection.
  knobs:
    - when: { z: middle }
      main:
        name: Cutoff
        description: Filter cutoff.
      x:
        name: Resonance
        description: Filter emphasis/resonance.
      y:
        name: Filter Contour
        description: Amount of filter ADS contour.
    - when: { z: up }
      main:
        name: OSC Pitch / Offset
        description: Fine pitch for the selected internal oscillator or offset for external OSC3 pitch CV.
      x:
        name: OSC Level
        description: Mixer level for the selected oscillator.
      y:
        name: Waveform / Range
        description: Internal oscillator waveform or external OSC3 pipe-length range.
    - when: { z: down }
      main:
        name: OSC3 Offset / Noise Level
        description: OSC3 pitch offset during a short hold; noise level during a longer hold.
      x:
        name: Mod Depth / Noise Colour
        description: Modulation depth during a short hold; white/pink selection across noon during a longer hold.
      y:
        name: Pitch-Filter Balance / Mod Mix
        description: Modulation destination balance during a short hold; source A/B mix during a longer hold.

host:
  usb:
    - name: MIDI device
      role: midi
      description: Mono last-note-wins MIDI input with note on/off, +/-2 semitone pitch bend, CC1 modulation depth, and Web MIDI preset communication.
  notes: >-
    Hold Down at startup, or for five seconds during operation, to select factory
    and populated user presets. A short Down press cycles oscillator setup pages.
    Web MIDI manages oscillator ranges, full ADS contours, filter mode/tracking,
    modulation sources, LFO, glide, and named user slots.

contact:
  social:
    github: https://github.com/soveda