Packages

final case class PV_JensenAndersen(rate: Rate, chain: GE, centroid: GE = 0.25f, hfe: GE = 0.25f, hfc: GE = 0.25f, flux: GE = 0.25f, thresh: GE = 1.0f, waitTime: GE = 0.04f) extends SingleOut with IsIndividual with Product with Serializable

An FFT based onset detector UGen using a mix of extracted features. It is based on work described in Jensen and Andersen (2003), "Real-time Beat Estimation Using Feature Extraction," in: Proceedings of the Computer Music Modeling and Retrieval Symposium.

First order derivatives of the features are taken. The threshold may need to be set low to pick up on changes.

chain

the fft signal (buffer) to analyze

centroid

proportion (0 to 1) of spectral centroid feature

hfe

proportion (0 to 1) of high frequency energy feature

hfc

proportion (0 to 1) of high frequency content feature

flux

proportion (0 to 1) of spectral flux feature

thresh

threshold level for detection

waitTime

after an onset is detected, further detections are suppressed for this period in seconds, preventing multiple rapid triggers

See also

Onsets

PV_HainsworthFoote

Linear Supertypes
Serializable, Serializable, IsIndividual, SingleOut, SomeOut, GE.Lazy, GE, UGenSource[UGenInLike], Expander[UGenInLike], Lazy, Product, Equals, AnyRef, Any
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Inherited
  1. PV_JensenAndersen
  2. Serializable
  3. Serializable
  4. IsIndividual
  5. SingleOut
  6. SomeOut
  7. Lazy
  8. GE
  9. UGenSource
  10. Expander
  11. Lazy
  12. Product
  13. Equals
  14. AnyRef
  15. Any
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Visibility
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Instance Constructors

  1. new PV_JensenAndersen(rate: Rate, chain: GE, centroid: GE = 0.25f, hfe: GE = 0.25f, hfc: GE = 0.25f, flux: GE = 0.25f, thresh: GE = 1.0f, waitTime: GE = 0.04f)

    chain

    the fft signal (buffer) to analyze

    centroid

    proportion (0 to 1) of spectral centroid feature

    hfe

    proportion (0 to 1) of high frequency energy feature

    hfc

    proportion (0 to 1) of high frequency content feature

    flux

    proportion (0 to 1) of spectral flux feature

    thresh

    threshold level for detection

    waitTime

    after an onset is detected, further detections are suppressed for this period in seconds, preventing multiple rapid triggers

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 centroid: GE
  6. val chain: 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. val flux: GE
  11. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  12. lazy val hashCode: Int
    Definition Classes
    UGenSource → AnyRef → Any
  13. val hfc: GE
  14. val hfe: GE
  15. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  16. def makeUGen(_args: Vec[UGenIn]): UGenInLike
    Attributes
    protected
    Definition Classes
    PV_JensenAndersenUGenSource
  17. 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
    PV_JensenAndersenExpander
  18. final def name: String
    Definition Classes
    UGenSource
  19. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  20. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  21. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  22. val rate: Rate
    Definition Classes
    PV_JensenAndersenGE
  23. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  24. val thresh: GE
  25. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  26. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  27. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  28. val waitTime: GE

Inherited from Serializable

Inherited from Serializable

Inherited from IsIndividual

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

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