IFFT

A UGen performing an inverse FFT, transforming a buffer containing a spectral domain signal back into the time domain.

Examples

// perfect reconstruction
play {
  // with a hop of 0.5 and forward Hann window,
  // we get a perfect reconstruction delayed
  // by the fftSize minus one control-block.
  // (alternatively, you can use a hop of 1.0,
  //  and winType of 1 for both FFT and IFFT)
  val n     = 1024
  val hop   = 0.5
  val buf   = LocalBuf(n)
  val in    = PinkNoise.ar(0.5)
  val fft   = FFT(buf, in, hop = hop, winType = 1)
  val out   = IFFT.ar(fft, winType = -1)
  val dur   = (2 * n * hop) / SampleRate.ir - ControlDur.ir
  val dly   = DelayN.ar(in, dur, dur)
  out - dly
}

See also: FFT

Linear Supertypes

Serializable, Serializable, AnyRef, Any

Value Members

final def !=(arg0: AnyRef): Boolean

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

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final def ##(): Int

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final def ==(arg0: AnyRef): Boolean

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

Definition Classes
Any
def ar(chain: GE, winType: GE = 0, winSize: GE = 0): IFFT

chain
reference to the spectral signal, returned as a buffer-identifier from FFT or the PV_... UGens.
winType
The window function applied after each IFFT is taken. The default of 0 is a sine window, -1 is a rectangle window, and 1 is a Hann window. (init-time only)
winSize
With the default value of zero, the window size equals the fft size. If you wish to perform zero padding, an explicit window size can be specified. (init-time only)
final def asInstanceOf[T0]: T0

Definition Classes
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def clone(): AnyRef

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

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def equals(arg0: Any): Boolean

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def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
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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(chain: GE, winType: GE = 0, winSize: GE = 0): IFFT

chain
reference to the spectral signal, returned as a buffer-identifier from FFT or the PV_... UGens.
winType
The window function applied after each IFFT is taken. The default of 0 is a sine window, -1 is a rectangle window, and 1 is a Hann window. (init-time only)
winSize
With the default value of zero, the window size equals the fft size. If you wish to perform zero padding, an explicit window size can be specified. (init-time only)
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

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def toString(): String

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final def wait(): Unit

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

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

Definition Classes
AnyRef
Annotations
@throws( ... )

object IFFT extends Serializable

Examples

Value Members

final def !=(arg0: AnyRef): Boolean

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: AnyRef): Boolean

final def ==(arg0: Any): Boolean

def ar(chain: GE, winType: GE = 0, winSize: GE = 0): IFFT

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(chain: GE, winType: GE = 0, winSize: GE = 0): IFFT

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