AKMoogLadder

open class AKMoogLadder: AKNode, AKToggleable, AKComponent

Moog Ladder is an new digital implementation of the Moog ladder filter based on the work of Antti Huovilainen, described in the paper Non-Linear Digital Implementation of the Moog Ladder Filter (Proceedings of DaFX04, Univ of Napoli). This implementation is probably a more accurate digital representation of the original analogue filter.

  • Ramp Time represents the speed at which parameters are allowed to change

    Declaration

    Swift

    open var rampTime: Double = AKSettings.rampTime
  • Filter cutoff frequency.

    Declaration

    Swift

    open var cutoffFrequency: Double = 1000
  • Resonance, generally < 1, but not limited to it. Higher than 1 resonance values might cause aliasing, analogue synths generally allow resonances to be above 1.

    Declaration

    Swift

    open var resonance: Double = 0.5
  • Tells whether the node is processing (ie. started, playing, or active)

    Declaration

    Swift

    open var isStarted: Bool
  • Initialize this filter node

    • Parameters:
      • input: Input node to process
      • cutoffFrequency: Filter cutoff frequency.
      • resonance: Resonance, generally < 1, but not limited to it. Higher than 1 resonance values might cause aliasing, analogue synths generally allow resonances to be above 1.

    Declaration

    Swift

    public init(
            _ input: AKNode,
            cutoffFrequency: Double = 1000,
            resonance: Double = 0.5)

    Parameters

    input

    Input node to process

    cutoffFrequency

    Filter cutoff frequency.

    resonance

    Resonance, generally < 1, but not limited to it. Higher than 1 resonance values might cause aliasing, analogue synths generally allow resonances to be above 1.

  • Function to start, play, or activate the node, all do the same thing

    Declaration

    Swift

    open func start()
  • Function to stop or bypass the node, both are equivalent

    Declaration

    Swift

    open func stop()