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
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Instance Constructors
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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
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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final
def
==(arg0: Any): Boolean
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final
def
asInstanceOf[T0]: T0
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- val centroid: GE
- val chain: GE
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def
clone(): AnyRef
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final
def
eq(arg0: AnyRef): Boolean
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def
finalize(): Unit
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- val flux: GE
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final
def
getClass(): Class[_]
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lazy val
hashCode: Int
- Definition Classes
- UGenSource → AnyRef → Any
- val hfc: GE
- val hfe: GE
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final
def
isInstanceOf[T0]: Boolean
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def
makeUGen(_args: Vec[UGenIn]): UGenInLike
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def
makeUGens: UGenInLike
Abstract method which must be implemented by creating the actual
UGen
s during expansion.Abstract method which must be implemented by creating the actual
UGen
s during expansion. This method is at most called once during graph expansion- returns
the expanded object (depending on the type parameter
U
)
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final
def
name: String
- Definition Classes
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final
def
ne(arg0: AnyRef): Boolean
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final
def
notify(): Unit
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final
def
notifyAll(): Unit
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val
rate: Rate
- Definition Classes
- PV_JensenAndersen → GE
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
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- val thresh: GE
-
final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
- Definition Classes
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- @native() @throws( ... )
- val waitTime: GE