Rotate2

A UGen that can be used for rotating an ambisonic B-format sound field around an axis. It uses an equal-power rotation so it also works well on stereo sounds. It takes two audio inputs ( x , y ) and an angle control ( pos ). It outputs again two channels, using these formulas:

xr = cos(angle) * x + sin(angle) * y
yr = cos(angle) * y - sin(angle) * x

where angle = pos * Pi . This allows, for example, the use of LFSaw to create a continuous rotation around a circle. Note: Be careful when accessing the output channels. xr and yr are the X and Y output channels, whereas x and y refers to the X and Y input channel.

Examples

// 4-channel rotation of opposite sounds
play {
  val p = WhiteNoise.ar(0.05)                     // first source
  val q = Mix(LFSaw.ar(Seq(200, 200.37))) * 0.03  // second source
  // B-format encode 2 signals at opposite sides of the circle
  val enc = PanB2.ar(p, -0.5) + PanB2.ar(q, +0.5)
  val Seq(w, x, y) = (0 to 2).map(enc \ _)
  val rot = Rotate2.ar(x, y, MouseX.kr(-1, +1))
  // B-format decode to quad (front-left, front-right, rear-left, rear-right)
  DecodeB2.ar(4, w, rot.xr, rot.yr)
}

Linear Supertypes

Serializable, Serializable, AnyRef, Any

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

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

Definition Classes
AnyRef → Any
def ar(x: GE, y: GE, pos: GE = 0.0f): Rotate2

x
B-format X input channel
y
B-format Y input channel
pos
angle to rotate around the circle, normalized between -1 and +1. -1 and +1 corresponds to -180 and +180 degrees (behind), -0.5 is 90 degrees left, 0 is frontal, +0.5 is 90 degrees right.
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

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

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

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

Definition Classes
AnyRef → Any
def hashCode(): Int

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

Definition Classes
Any
def kr(x: GE, y: GE, pos: GE = 0.0f): Rotate2

x
B-format X input channel
y
B-format Y input channel
pos
angle to rotate around the circle, normalized between -1 and +1. -1 and +1 corresponds to -180 and +180 degrees (behind), -0.5 is 90 degrees left, 0 is frontal, +0.5 is 90 degrees right.
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
final def wait(): Unit

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

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

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Docs: class Rotate2 | package ugen

object Rotate2 extends Serializable

Examples

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def ar(x: GE, y: GE, pos: GE = 0.0f): Rotate2

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

def kr(x: GE, y: GE, pos: GE = 0.0f): Rotate2

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

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

def toString(): String

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped