de.sciss.synth.ugen

Loudness

final case class Loudness(chain: GE, smask: GE = synth.this.GE.const(0.25), tmask: GE = synth.this.GE.const(1.0)) extends SingleOut with ControlRated with IsIndividual with Product with Serializable

A UGen for the extraction of instantaneous loudness. A perceptual loudness function which outputs loudness in sones; this is a variant of an MP3 perceptual model, summing excitation in ERB bands. It models simple spectral and temporal masking, with equal loudness contour correction in ERB bands to obtain phons (relative dB), then a phon to sone transform. The final output is typically in the range of 0 to 64 sones, though higher values can occur with specific synthesised stimuli.

Note that despite running at control-rate, the output remains constant for each FFT frame. E.g. with an FFT size of 1024 and 50% overlap, a new measure is generated every 512 audio frames, or (at control block size 64) every 8 control blocks.

chain

the output (buffer) of an FFT UGen which transforms the audio input to track. The FFT size should be 1024 for 44.1 and 48 kHz sampling rate, and 2048 for 88.2 and 96 kHz sampling rate.

smask

Spectral masking parameter: lower bins mask higher bin power within ERB bands, with a power falloff (leaky integration multiplier) of smask per bin. Can be control-rate modulated.

tmask

Temporal masking parameter: the phon level let through in an ERB band is the maximum of the new measurement, and the previous minus tmask phons. 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
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  1. Loudness
  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
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Instance Constructors

  1. new Loudness(chain: GE, smask: GE = synth.this.GE.const(0.25), tmask: GE = synth.this.GE.const(1.0))

    chain

    the output (buffer) of an FFT UGen which transforms the audio input to track. The FFT size should be 1024 for 44.1 and 48 kHz sampling rate, and 2048 for 88.2 and 96 kHz sampling rate.

    smask

    Spectral masking parameter: lower bins mask higher bin power within ERB bands, with a power falloff (leaky integration multiplier) of smask per bin. Can be control-rate modulated.

    tmask

    Temporal masking parameter: the phon level let through in an ERB band is the maximum of the new measurement, and the previous minus tmask phons. Can be control-rate modulated.

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any
  3. final def ##(): Int

    Definition Classes
    AnyRef → Any
  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    Any
  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  7. val chain: GE

    the output (buffer) of an FFT UGen which transforms the audio input to track.

    the output (buffer) of an FFT UGen which transforms the audio input to track. The FFT size should be 1024 for 44.1 and 48 kHz sampling rate, and 2048 for 88.2 and 96 kHz sampling rate.

  8. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  9. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  10. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
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    Annotations
    @throws( classOf[java.lang.Throwable] )
  11. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  12. lazy val hashCode: Int

    Definition Classes
    UGenSource → AnyRef → Any
  13. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  14. def makeUGens: UGenInLike

    Attributes
    protected
    Definition Classes
    Loudness → Expander
  15. final def name: String

    Definition Classes
    UGenSource
  16. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  17. final def notify(): Unit

    Definition Classes
    AnyRef
  18. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  19. final def rate: Rate

    Definition Classes
    ControlRated
  20. val smask: GE

    Spectral masking parameter: lower bins mask higher bin power within ERB bands, with a power falloff (leaky integration multiplier) of smask per bin.

    Spectral masking parameter: lower bins mask higher bin power within ERB bands, with a power falloff (leaky integration multiplier) of smask per bin. Can be control-rate modulated.

  21. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  22. val tmask: GE

    Temporal masking parameter: the phon level let through in an ERB band is the maximum of the new measurement, and the previous minus tmask phons.

    Temporal masking parameter: the phon level let through in an ERB band is the maximum of the new measurement, and the previous minus tmask phons. Can be control-rate modulated.

  23. final def wait(): Unit

    Definition Classes
    AnyRef
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    @throws( ... )
  24. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
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    @throws( ... )
  25. final def wait(arg0: Long): Unit

    Definition Classes
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    @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

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