Simple tool for sending control voltages out of a Crow connected to Norns. Intended for use with Arc, where each Arc encoder controls the voltage sent from the corresponding Crow output. Works without Arc, too! Also has a Quantized mode and a Snapshot mode for interpolating between two different states

UI

• 4 dials showing current voltage values
• Ships with helper text on by default, showing what each encoder and button does. Turn off in params menu, once you know how it works!

Controls

Arc (optional)

• Each encoder is mapped to the corresponding dial on screen

Norns

• E1 changes which dials are focused
• E2 & E3 are mapped to the highlighted dials on screen

Snapshot mode

• Switch modes via Params menu. Defaults to Snapshot mode if launched with an Arc connected
• K2 & K3 save current state to one of two snapshot banks
• E1 interpolates between the two snapshots
• If you change a dial while interpolating, an intermediary snapshot is taken.
  • Now as you turn E1, you are interpolating between 3 snapshots: snapshot 1 at the leftmost extreme, snapshot 2 at the rightmost extreme, and your intermediary snapshot in between them (located wherever the interpolation was when you changed the dial)
  • The intermediary snapshot is reset whenever you take a new real snapshot

Quantize mode

• Switch modes via Params menu
• E2 & E3 select scale root and scale type
• K2: Toggle between continuous quantization and on-demand quantization
• K3: Quantize now!
• Set slew timing for quantization in the Params > Quantization menu

Additional Parameters (in Params menu)

• Crow Outputs
  • Minimum and Maximum voltage per output
  • Slew time per output
  • Customize dial -> Crow output mapping
  • Direct control over dial values (can be used for MIDI mapping if you’d like a different control surface)
• Crow Inputs
  • Each Crow input can exert influence over all the Crow outputs via Attenuation or Offset (or None)
  • Defaults to None
• MIDI Out
  • Each dial can send MIDI out, either as CCs or Notes
  • Customize which MIDI device and channel is used
  • Customize which CC# is sent, along with minimum and maximum CC values
• Misc
  • If you have a Norns shield, you can switch top left and right text to match where your E1 is
  • You can turn off the helper text once you understand how it works

Requirements

• norns (200712 or later)
• crow (2.0.0 or later)
• arc optional, but encouraged
  • use a MIDI device for input in place of an arc by going into the params menu, clicking “map”, scrolling to “crow outputs”, scroll to “1_volt” and the other 4 options, and map each of them to a different control on the MIDI device

Roadmap

Quantization mode improvements

• More scales (whole volts, 10TET, more?)}

Download

Latest version: v1.0.0 (2c4267c) Available in the Maiden Library

Or, install via the Maiden command line: visiting http://norns.local/maiden when your norns is on WiFi and type

;install https://github.com/21echoes/4-big-knobs.git

into the command entry box at the bottom of the screen.

Also available as a direct download. Unzip it, rename the folder to just “4-big-knobs”, and put the whole folder onto your norns inside the /home/we/dust/code folder

github: https://github.com/21echoes/4-big-knobs

discussion

For feature requests and bug reports, discuss over on lines