draft: false
Name: Skipping Stones
short-description: Marbles-inspired controlled-random patch conductor for the Workshop System.
summary: >
  Skipping Stones is a controlled-random patch conductor inspired by the ideas
  of Mutable Instruments Marbles: related random gates and voltages, deja-vu
  loop memory, bias/spread shaping, clocked uncertainty, and musical repetition.
  It is adapted for the Workshop Computer and Workshop System rather than being
  a literal panel clone. CV Out 1 is a calibrated quantized pitch stream for a
  SineSquare oscillator, CV Out 2 is a related smoothed modulation voltage,
  Pulse Out 1 and 2 drive slopes, filters, or accents. Embedded TR-606 closed
  and open hi-hat samples on the audio outputs provide a rhythm bed before any
  analogue patching is done. Their attack shaping and short retrigger crossfade
  prevent abrupt sample-playback clicks during dense patterns.
Language: C++ (Pico SDK + ComputerCard)
Creator: Adrian Vos
Version: "1.0.0"
Status: Beta
License: MIT
date-created: 2026-08-28
date-updated: 2026-08-30
uf2:
  - path: uf2/SkippingStones.uf2
    name: Skipping Stones 1.0.0
tags:
  - random
  - sequencer
  - generative
  - cv
  - workshop-system
panel:
  inputs:
    - id: AudioIn1
      name: Bias In
      type: cv
      description: Optional bipolar bias control for the random voltage distribution
    - id: CVIn1
      name: Density CV
      type: cv
      description: Adds to the Main density/activity control, useful with Four Voltages
    - id: CVIn2
      name: Spread CV
      type: cv
      description: Adds to the Y spread/jitter control
    - id: PulseIn1
      name: Clock
      type: pulse
      description: External clock; when active it replaces the internal clock
    - id: PulseIn2
      name: Reset
      type: pulse
      description: Rising edge resets playback to the first captured loop step
  outputs:
    - id: AudioOut1
      name: Closed Hat
      type: audio
      description: Embedded TR-606 closed-hat sample with softened attack and retrigger crossfade
    - id: AudioOut2
      name: Open Hat
      type: audio
      description: Embedded TR-606 open-hat sample with softened attack and retrigger crossfade
    - id: CVOut1
      name: Pitch CV
      type: cv
      description: Calibrated quantized pitch stream for an analogue oscillator
    - id: CVOut2
      name: Motion CV
      type: cv
      description: Smoothed related modulation stream for filter, slope, or VCA control
    - id: PulseOut1
      name: Main Gate
      type: pulse
      description: Primary probabilistic trigger stream
    - id: PulseOut2
      name: Accent Gate
      type: pulse
      description: Related accent/fill trigger stream
controls:
  switch:
    up:
      name: Coupled
      description: More regular relationship between the two pulse streams
    middle:
      name: Sparse
      description: More gaps and independent pulse decisions
    down:
      name: Write
      description: Momentary write mode; newly generated steps replace the loop aggressively
  knobs:
    - main:
        name: Density / Rate
        description: Sets internal clock speed and trigger activity; CV In 1 adds to it
      x:
        name: Deja Vu
        description: Moves from constantly rewritten randomness to repeating loop memory
      y:
        name: Spread / Jitter
        description: Widens the voltage range and timing jitter; CV In 2 adds to it
  leds:
    - display: list
      items:
        - id: LED0
          name: Main Gate / Density
          description: Flashes on Pulse Out 1, otherwise follows density
        - id: LED1
          name: Accent Gate / Deja Vu
          description: Flashes on Pulse Out 2, otherwise follows loop lock amount
        - id: LED2
          name: Spread
          description: Follows the effective spread/jitter control
        - id: LED3
          name: Pitch CV
          description: Follows the quantized pitch output range
        - id: LED4
          name: Motion CV
          description: Follows the smoothed modulation output
        - id: LED5
          name: Clock Source
          description: Bright when an external clock is active, dim on internal clock
contact:
  social:
    github: https://github.com/soveda