Packages

final case class KeyTrack(chain: GE, keyDecay: GE = 2.0f, chromaLeak: GE = 0.5f) extends SingleOut with ControlRated with IsIndividual with Product with Serializable

A (12TET major/minor) key tracker UGen. It is based on a pitch class profile of energy across FFT bins and matching this to templates for major and minor scales in all transpositions. It assumes a 440 Hz concert A reference. Output is 0-11 C major to B major, 12-23 C minor to B minor.

chain

the output (buffer) of an FFT UGen which transforms the audio input to track. For the FFT chain, with a standard hop of half FFT size, the FFT size should be 4096 at 44.1 or 48 kHz and 8192 at 88.2 or 96 kHz sampling rate.

keyDecay

Number of seconds for the influence of a window on the final key decision to decay by 40dB (to 0.01 its original value). Can be control-rate modulated.

chromaLeak

Each frame, the chroma values are set to the previous value multiplied by this chroma decay. 0.0 will start each frame afresh with no memory. Can be control-rate modulated.

Linear Supertypes
Serializable, Serializable, IsIndividual, ControlRated, SingleOut, SomeOut, GE.Lazy, GE, UGenSource[UGenInLike], Expander[UGenInLike], Lazy, Product, Equals, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. KeyTrack
  2. Serializable
  3. Serializable
  4. IsIndividual
  5. ControlRated
  6. SingleOut
  7. SomeOut
  8. Lazy
  9. GE
  10. UGenSource
  11. Expander
  12. Lazy
  13. Product
  14. Equals
  15. AnyRef
  16. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new KeyTrack(chain: GE, keyDecay: GE = 2.0f, chromaLeak: GE = 0.5f)

    chain

    the output (buffer) of an FFT UGen which transforms the audio input to track. For the FFT chain, with a standard hop of half FFT size, the FFT size should be 4096 at 44.1 or 48 kHz and 8192 at 88.2 or 96 kHz sampling rate.

    keyDecay

    Number of seconds for the influence of a window on the final key decision to decay by 40dB (to 0.01 its original value). Can be control-rate modulated.

    chromaLeak

    Each frame, the chroma values are set to the previous value multiplied by this chroma decay. 0.0 will start each frame afresh with no memory. Can be control-rate modulated.

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. val chain: GE
  6. val chromaLeak: GE
  7. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  8. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  9. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. lazy val hashCode: Int
    Definition Classes
    UGenSource → AnyRef → Any
  12. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  13. val keyDecay: GE
  14. def makeUGen(_args: Vec[UGenIn]): UGenInLike
    Attributes
    protected
    Definition Classes
    KeyTrackUGenSource
  15. def makeUGens: UGenInLike

    Abstract method which must be implemented by creating the actual UGens during expansion.

    Abstract method which must be implemented by creating the actual UGens during expansion. This method is at most called once during graph expansion

    returns

    the expanded object (depending on the type parameter U)

    Attributes
    protected
    Definition Classes
    KeyTrackExpander
  16. final def name: String
    Definition Classes
    UGenSource
  17. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  18. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  19. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  20. final def rate: Rate
    Definition Classes
    ControlRated
  21. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  22. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  23. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  24. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from IsIndividual

Inherited from ControlRated

Inherited from SingleOut

Inherited from SomeOut

Inherited from GE.Lazy

Inherited from GE

Inherited from UGenSource[UGenInLike]

Inherited from Expander[UGenInLike]

Inherited from Lazy

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped