de.sciss.synth.ugen

AmpComp

final case class AmpComp(rate: Rate, freq: GE = synth.this.GE.const(261.626), root: GE = synth.this.GE.const(261.626), expon: GE = synth.this.GE.const(0.3333)) extends SingleOut with Product with Serializable

A UGen that produces a psychoacoustic amplitude compensation factor for a given frequency.

Implements the formula: (root / freq).pow(exp)

Higher frequencies are normally perceived as louder, therefore AmpComp outputs lower values for them. For example, with default parameters, the pitch C4 (frequency 262 Hz) produces the base factor of 1.0, whereas a pitch one octave up, C5 (or 523 Hz) produces a factor of 0.793719 (an attenuation of -2 dB).

An alternative is AmpCompA that better models the bell-shaped equal loudness contours of the hearing system. Especially note that the output of this UGen can become very high for frequencies much lower than the root parameter.

freq

the frequency in Hertz for which to determine the compensation factor

root

the base frequency corresponding to a compensation factor of 1.0

expon

the exponent determines how steep the compensation curve decreases for increasing frequencies. In general, the louder a signal is played, the shallower the equal loudness contours become.

See also

AmpCompA

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

  1. new AmpComp(rate: Rate, freq: GE = synth.this.GE.const(261.626), root: GE = synth.this.GE.const(261.626), expon: GE = synth.this.GE.const(0.3333))

    freq

    the frequency in Hertz for which to determine the compensation factor

    root

    the base frequency corresponding to a compensation factor of 1.0

    expon

    the exponent determines how steep the compensation curve decreases for increasing frequencies. In general, the louder a signal is played, the shallower the equal loudness contours become.

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. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  8. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  9. val expon: GE

    the exponent determines how steep the compensation curve decreases for increasing frequencies.

    the exponent determines how steep the compensation curve decreases for increasing frequencies. In general, the louder a signal is played, the shallower the equal loudness contours become.

  10. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  11. val freq: GE

    the frequency in Hertz for which to determine the compensation factor

  12. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  13. lazy val hashCode: Int

    Definition Classes
    UGenSource → AnyRef → Any

  14. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  15. def makeUGens: UGenInLike

    Attributes
    protected
    Definition Classes
    AmpComp → Expander

  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

  19. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  20. val rate: Rate

    Definition Classes
    AmpComp → GE

  21. val root: GE

    the base frequency corresponding to a compensation factor of 1.

    the base frequency corresponding to a compensation factor of 1.0

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

    Definition Classes
    AnyRef

  23. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  24. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  25. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Serializable

Inherited from Serializable

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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