com/wha/modsynth/Delay.scala

   1 package com.wha.modsynth;
   2
   3 import de.gulden.framework.jjack.JJackSystem
   4
   5 class Delay (n: String) extends Module {
   6   val name = n
   7   controls += "time" -> 250.0
   8   controls += "mixSig" -> 75.0
   9   controls += "mixFx" -> 50.0
  10   controls += "outSig" -> 75.0
  11   controls += "outFx" -> 50.0
  12   var ring: List[FloatRingBuffer] = Nil
  13
  14   def computePut(mixSig: Float, mixFx: Float)(sig: Float)(fx: Float): Float = {
  15     val x = sig * mixSig + fx * mixFx
  16     //println (x + " ")
  17     x
  18   }
  19
  20   override def transformAudio(buf: List[List[float]]): List[List[float]] = {
  21     val sampleRate = JJackSystem.getSampleRate
  22     val time = controls("time")
  23     val diff = (time * sampleRate / 1000).toInt
  24     if (ring == Nil) List.range(0, buf.size).foreach(x => ring = new FloatRingBuffer(diff) :: ring)
  25     else ring.foreach(x => x.resize(diff))
  26
  27     val mixSig = controls("mixSig") / 100
  28     val mixFx = controls("mixFx") / 100
  29     val outSig = controls("outSig") / 100
  30     val outFx = controls("outFx") / 100
  31     val compFxMix = computePut(mixSig.toFloat, mixFx.toFloat)_
  32     val compSigMix = computePut(outSig.toFloat, outFx.toFloat)_
  33     for (channel <- buf; ringbuf <- ring)
  34       yield {
  35       var i = 0
  36       for (sample <- channel)
  37         yield {
  38           //if (i == 0) {println(sample + " "); i = 1}
  39           val compFx = compFxMix(sample)
  40           val compSig = compSigMix(sample)
  41           compSig(ringbuf.getPut(compFx))
  42       }
  43     }
  44   }
  45
  46 }