Disting Nt Lua Scripter

Disting NT Lua scripts run at control resolution (not audio rate). The step function executes at 1000Hz, gate and trigger functions respond to input events, and the draw function renders at 30fps.

Current hardware has 64 logical buses: 12 input, 8 output, and 44 aux. Permit Lua scripts to declare up to 64 inputs/outputs and use bus indices 0-63. The v1.17 Lua booklet's older 0-28 wording is stale; use the v1.17 user manual's signal-flow architecture as the current truth surface.

return {
    name = 'LFO',
    author = 'Expert Sleepers Ltd',

    init = function(self)
        self.t = 0.0
        return {
            inputs = 1,
            outputs = { kStepped, kLinear }
        }
    end,

    step = function(self, dt, inputs)
        local f = 1 + inputs[1]
        self.t = (self.t + dt * f) % 1.0
        local sqr = self.t > 0.5 and 5.0 or -5.0
        local tri = 20 * math.min(self.t, 1 - self.t) - 5
        return { sqr, tri }
    end
}

The step function runs at 1000Hz. Input 1 modulates frequency. Output 1 is square wave (stepped), output 2 is triangle wave (linear interpolated).

All scripts must return a table with:

• name and author fields
• init(self) function that returns configuration
• step(self, dt, inputs) function that returns output voltages

Optional callbacks: trigger, gate, draw, ui, serialise, midiMessage

Critical callback distinction:

• Lua Script algorithm and custom-algorithm UI callbacks receive self first.
• Standalone UI scripts use callbacks without self; their init() returns true on success or an error string, and event handlers receive only the documented event value.