BufRd

A UGen which reads the content of a buffer, using an index pointer.

Warning: if the supplied bufID refers to a buffer whose number of channels differs from numChannels , the UGen will fail silently.

An alternative to BufRd is PlayBuf . While PlayBuf plays through the buffer by itself, BufRd only moves its read point by the index input and therefore has no pitch input. PlayBuf uses cubic interpolation, while BufRd has variable interpolation. PlayBuf can determine the end of the buffer and issue a done-action.

Examples

// Write and read
val b = Buffer.alloc(s, numFrames = 32768, numChannels = 1)

// write into the buffer with a BufWr
val y = play {
  val in = SinOsc.ar(LFNoise1.kr(2).madd(300, 400)) * 0.1
  val rate = "rate" kr 1
  BufWr.ar(in, b.id, Phasor.ar(0, BufRateScale.kr(b.id) * rate, 0, BufFrames.kr(b.id)))
  0.0 // quiet
}

// read it with a BufRd
val x = play {
  val rate = "rate" kr 1
  BufRd.ar(1, b.id, Phasor.ar(0, BufRateScale.kr(b.id) * rate, 0, BufFrames.kr(b.id)))
}

y.set("rate" -> 0.5) // notice the clicks when the play head overtakes the write head!
x.set("rate" -> 0.5)
y.set("rate" -> 1.0)

See also: BufRateScale
BufFrames
Phasor
BufWr
PlayBuf

Linear Supertypes

Serializable, Serializable, AnyRef, Any

Value Members

final def !=(arg0: AnyRef): Boolean

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

Definition Classes
Any
final def ##(): Int

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

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

Definition Classes
Any
def ar(numChannels: Int, buf: GE, index: GE = 0.0f, loop: GE = 1, interp: GE = 2): BufRd

numChannels
number of channels that the buffer will be. Since this is an integer constant, a change in the number of channels must be reflected by creating different SynthDefs.
buf
the identifier of the buffer to use
index
audio rate frame-index into the buffer. Can be fractional.
loop
1 to enable looping, 0 to disable looping. this can be modulated.
interp
1 for no interpolation, 2 for linear, and 4 for cubic interpolation
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
def ir(numChannels: Int, buf: GE, index: GE = 0.0f, loop: GE = 1, interp: GE = 2): BufRd

numChannels
number of channels that the buffer will be. Since this is an integer constant, a change in the number of channels must be reflected by creating different SynthDefs.
buf
the identifier of the buffer to use
index
audio rate frame-index into the buffer. Can be fractional.
loop
1 to enable looping, 0 to disable looping. this can be modulated.
interp
1 for no interpolation, 2 for linear, and 4 for cubic interpolation
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def kr(numChannels: Int, buf: GE, index: GE = 0.0f, loop: GE = 1, interp: GE = 2): BufRd

numChannels
number of channels that the buffer will be. Since this is an integer constant, a change in the number of channels must be reflected by creating different SynthDefs.
buf
the identifier of the buffer to use
index
audio rate frame-index into the buffer. Can be fractional.
loop
1 to enable looping, 0 to disable looping. this can be modulated.
interp
1 for no interpolation, 2 for linear, and 4 for cubic interpolation
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( ... )

object BufRd 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(numChannels: Int, buf: GE, index: GE = 0.0f, loop: GE = 1, interp: GE = 2): BufRd

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

def ir(numChannels: Int, buf: GE, index: GE = 0.0f, loop: GE = 1, interp: GE = 2): BufRd

final def isInstanceOf[T0]: Boolean

def kr(numChannels: Int, buf: GE, index: GE = 0.0f, loop: GE = 1, interp: GE = 2): BufRd

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