Packages

object BufRd extends ProductReader[BufRd] with Serializable

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

Warning: if the supplied buf 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).mulAdd(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

PlayBuf

BufWr

Phasor

BufFrames

BufRateScale

Linear Supertypes
Serializable, ProductReader[BufRd], AnyRef, Any
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Inherited
  1. BufRd
  2. Serializable
  3. ProductReader
  4. AnyRef
  5. Any
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  2. Protected

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. 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. (init-time only)

  5. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  6. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  9. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  11. 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. (init-time only)

  12. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  13. 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. (init-time only)

  14. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  15. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  16. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  17. def read(in: RefMapIn, key: String, arity: Int): BufRd
    Definition Classes
    BufRd → ProductReader
  18. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  19. def toString(): String
    Definition Classes
    AnyRef → Any
  20. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  21. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
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    @throws(classOf[java.lang.InterruptedException]) @native()
  22. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
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    @throws(classOf[java.lang.Throwable]) @Deprecated
    Deprecated

Inherited from Serializable

Inherited from ProductReader[BufRd]

Inherited from AnyRef

Inherited from Any

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