AKDynamicsProcessor

open class AKDynamicsProcessor : AKNode, AKToggleable, AUEffect, AKInput

AudioKit version of Apple’s DynamicsProcessor Audio Unit

  • Four letter unique description of the node

    Declaration

    Swift

    public static let ComponentDescription: AudioComponentDescription

  • Threshold (dB) ranges from -100 to 20 (Default: -20)

    Declaration

    Swift

    @objc
open dynamic var threshold: Double { get set }

  • Head Room (dB) ranges from 0.1 to 40.0 (Default: 5)

    Declaration

    Swift

    @objc
open dynamic var headRoom: Double { get set }

  • Expansion Ratio (rate) ranges from 1 to 50.0 (Default: 2)

    Declaration

    Swift

    @objc
open dynamic var expansionRatio: Double { get set }

  • Expansion Threshold (rate) ranges from -120 to 0 (Default: 0)

    Declaration

    Swift

    @objc
open dynamic var expansionThreshold: Double { get set }

  • Attack Duration (secs) ranges from 0.001 to 0.3 (Default: 0.001)

    Declaration

    Swift

    @objc
open dynamic var attackDuration: Double { get set }

  • Release Duration (secs) ranges from 0.01 to 3 (Default: 0.05)

    Declaration

    Swift

    @objc
open dynamic var releaseDuration: Double { get set }

  • Master Gain (dB) ranges from -40 to 40 (Default: 0)

    Declaration

    Swift

    @objc
open dynamic var masterGain: Double { get set }

  • Compression Amount (dB) read only

    Declaration

    Swift

    @objc
open dynamic var compressionAmount: Double { get }

  • Input Amplitude (dB) read only

    Declaration

    Swift

    @objc
open dynamic var inputAmplitude: Double { get }

  • Output Amplitude (dB) read only

    Declaration

    Swift

    @objc
open dynamic var outputAmplitude: Double { get }

  • Dry/Wet Mix (Default 1 Fully Wet)

    Declaration

    Swift

    @objc
open dynamic var dryWetMix: Double { get set }

  • Tells whether the node is processing (ie. started, playing, or active)

    Declaration

    Swift

    @objc
open dynamic var isStarted: Bool

  • Initialize the dynamics processor node

    Declaration

    Swift

    @objc
public init(
    _ input: AKNode? = nil,
    threshold: Double = -20,
    headRoom: Double = 5,
    expansionRatio: Double = 2,
    expansionThreshold: Double = 2,
    attackDuration: Double = 0.001,
    releaseDuration: Double = 0.05,
    masterGain: Double = 0,
    compressionAmount: Double = 0,
    inputAmplitude: Double = 0,
    outputAmplitude: Double = 0)

    Parameters

    input

    Input node to process
    threshold

    Threshold (dB) ranges from -40 to 20 (Default: -20)
    headRoom

    Head Room (dB) ranges from 0.1 to 40.0 (Default: 5)
    expansionRatio

    Expansion Ratio (rate) ranges from 1 to 50.0 (Default: 2)
    expansionThreshold

    Expansion Threshold (rate) ranges from 1 to 50.0 (Default: 2)
    attackDuration

    Attack Duration (secs) ranges from 0.0001 to 0.2 (Default: 0.001)
    releaseDuration

    Release Duration (secs) ranges from 0.01 to 3 (Default: 0.05)
    masterGain

    Master Gain (dB) ranges from -40 to 40 (Default: 0)
    compressionAmount

    Compression Amount (dB) ranges from -40 to 40 (Default: 0)
    inputAmplitude

    Input Amplitude (dB) ranges from -40 to 40 (Default: 0)
    outputAmplitude

    Output Amplitude (dB) ranges from -40 to 40 (Default: 0)

  • Declaration

    Swift

    public var inputNode: AVAudioNode { get }

Control

  • 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()

  • Disconnect the node

    Declaration

    Swift

    override open func disconnect()