Object/Class

de.sciss.synth.ugen

BufWr

Related Docs: class BufWr | package ugen

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object BufWr extends Serializable

A UGen that writes a signal to a buffer, using an index pointer.

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

An alternative to BufWr is RecordBuf . While RecordBuf advances the index into the buffer by itself, BufWr only moves its write point by the index input, making it possible to adjust the writing speed or to access the buffer in a non-linear way. RecordBuf can determine the end of the buffer and issue a done-action.

Examples
// record and playback
// a two second mono buffer
val b = Buffer.alloc(s, numFrames = s.sampleRate.toInt * 2)

val y = play {
  val sig  = SinOsc.ar(LFNoise1.kr(2).madd(300, 400)) * 0.1
  val rate = "rate" kr 1
  BufWr.ar(in = sig, buf = b.id, index =
    Phasor.ar(speed = BufRateScale.kr(b.id) * rate, lo = 0, hi = BufFrames.kr(b.id)))
  0.0 // quiet
}

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

x.set("rate" -> 5)
y.set("rate" -> 3)
x.set("rate" -> 2)
See also

BufRateScale

BufFrames

Phasor

BufRd

RecordBuf

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  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. def ar(in: GE, buf: GE, index: GE = 0.0f, loop: GE = 1): BufWr

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    in

    input signal to record

    buf

    the identifier of the buffer to use

    index

    audio rate frame-index into the buffer.

    loop

    1 to enable looping, 0 to disable looping. this can be modulated.

  5. final def asInstanceOf[T0]: T0

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  6. def clone(): AnyRef

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

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  8. def equals(arg0: Any): Boolean

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  9. def finalize(): Unit

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

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  11. def hashCode(): Int

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  12. def ir(in: GE, buf: GE, index: GE = 0.0f, loop: GE = 1): BufWr

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    in

    input signal to record

    buf

    the identifier of the buffer to use

    index

    audio rate frame-index into the buffer.

    loop

    1 to enable looping, 0 to disable looping. this can be modulated.

  13. final def isInstanceOf[T0]: Boolean

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  14. def kr(in: GE, buf: GE, index: GE = 0.0f, loop: GE = 1): BufWr

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    in

    input signal to record

    buf

    the identifier of the buffer to use

    index

    audio rate frame-index into the buffer.

    loop

    1 to enable looping, 0 to disable looping. this can be modulated.

  15. final def ne(arg0: AnyRef): Boolean

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  16. final def notify(): Unit

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  17. final def notifyAll(): Unit

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

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  19. def toString(): String

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  20. final def wait(): Unit

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

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

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