Packages

  • package root
    Definition Classes
    root
  • package de
    Definition Classes
    root
  • package sciss
    Definition Classes
    de
  • package synth
    Definition Classes
    sciss
  • package ugen
    Definition Classes
    synth
  • object Mix extends ProductReader[Mix] with Serializable

    A graph element that mixes the channels of a signal together.

    A graph element that mixes the channels of a signal together. It works like the sclang counterpart.

    The Mix companion object contains various useful mixing idioms:

    - Mix.tabulate(n: Int)(fun: Int => GE): corresponds to Seq.tabulate and to Array.fill in sclang. - Mix.fill(n: Int)(thunk: => GE): corresponds to Seq.fill. - Mix.seq(elems: GE*): A shortcut for Mix(GESeq(elems: _*)).

    A separate graph element is Mix.mono. Mix.mono(elem: GE) flattens all channels of the input element before summing them, guaranteeing that the result is monophonic.

    Finally, Mix.fold is an idiom that not actually adds elements, but recursively folds them. Thus, Mix.fold(elem: GE, n: Int)(fun: GE => GE) is equivalent to

    (1 to n).foldLeft(elem) { (res, _) => fun(res) }

    Mix.fold is often used in the SuperCollider examples to apply a filtering process such as reverberation several times. For cases where the iteration index is needed, the full form as shown above can be used instead.

    Examples
    // non-nested multi-channel signal reduced to mono (1)
    play {
      Mix(SinOsc.ar(440 :: 660 :: Nil)) * 0.2 // --> SinOsc.ar(440) + SinOsc.ar(660)
    }
    // non-nested multi-channel signal reduced to mono (2)
    play {
      Mix(Pan2.ar(SinOsc.ar)) * 0.2 // --> left + right
    }
    // mix inner channels
    play {
      // --> [left(440) + left(660), right(440) + right(660)]
      Mix(Pan2.ar(SinOsc.ar(440 :: 660 :: Nil))) * 0.2
    }
    // enforce monophonic mix
    play {
      // --> left(440) + left(660) + right(440) + right(660)
      Mix.mono(Pan2.ar(SinOsc.ar(440 :: 660 :: Nil))) * 0.2
    }
    // combine Mix(), Mix.fill(), Mix.fold()
    // from original SC examples: reverberated sine percussion
    play {
      val d = 6    // number of percolators
      val c = 5    // number of comb delays
      val a = 4    // number of allpass delays
    
      // sine percolation sound :
      val s = Mix.fill(d) { Resonz.ar(Dust.ar(2.0 / d) * 50, Rand(200, 3200), 0.003) }
    
      // reverb pre-delay time :
      val z = DelayN.ar(s, 0.048)
    
      // 'c' length modulated comb delays in parallel :
      val y = Mix(CombL.ar(z, 0.1, LFNoise1.kr(Seq.fill(c)(Rand(0, 0.1))).madd(0.04, 0.05), 15))
    
      // chain of 'a' allpass delays on each of two channels (2 times 'a' total) :
      val x = Mix.fold(y, a) { in =>
        AllpassN.ar(in, 0.050, Seq(Rand(0, 0.050), Rand(0, 0.050)), 1)
      }
    
      // add original sound to reverb and play it :
      s + 0.2 * x
    }
    // Mix.tabulate usage
    // from original SC examples: harmonic swimming
    play {
      val f = 50       // fundamental frequency
      val p = 20       // number of partials per channel
      val offset = Line.kr(0, -0.02, 60, doneAction = freeSelf) // causes sound to separate and fade
      Mix.tabulate(p) { i =>
        FSinOsc.ar(f * (i+1)) * // freq of partial
          LFNoise1.kr(Seq(Rand(2, 10), Rand(2, 10)))  // amplitude rate
          .madd(
            0.02,     // amplitude scale
            offset    // amplitude offset
          ).max(0)    // clip negative amplitudes to zero
      }
    }
    Definition Classes
    ugen
    See also

    Reduce

    BinaryOpUGen

  • Mono

object Mono extends ProductReader[Mono] with Serializable

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