AKHighPassButterworthFilter

open class AKHighPassButterworthFilter : AKNode, AKToggleable, AKComponent, AKInput

These filters are Butterworth second-order IIR filters. They offer an almost flat passband and very good precision and stopband attenuation.

  • Lower and upper bounds for Cutoff Frequency

    Declaration

    Swift

    public static let cutoffFrequencyRange: ClosedRange<Double>
  • Initial value for Cutoff Frequency

    Declaration

    Swift

    public static let defaultCutoffFrequency: Double
  • Ramp Duration represents the speed at which parameters are allowed to change

    Declaration

    Swift

    @objc
    open dynamic var rampDuration: Double { get set }
  • Cutoff frequency. (in Hertz)

    Declaration

    Swift

    @objc
    open dynamic var cutoffFrequency: Double { get set }
  • Tells whether the node is processing (ie. started, playing, or active)

    Declaration

    Swift

    @objc
    open dynamic var isStarted: Bool { get }
  • Function to start, play, or activate the node, all do the same thing

    Declaration

    Swift

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

    Declaration

    Swift

    @objc
    open func stop()