interpreter/preprocessor/faust-0.9.47mr3/benchmark/mixer.dsp

   1 declare name            "mixer";
   2 declare version         "1.0";
   3 declare author          "Grame";
   4 declare license         "BSD";
   5 declare copyright       "(c)GRAME 2006";
   6
   7 //-------------------------------------------------
   8 // Simple 8x2 mixer
   9 //-------------------------------------------------
  10 import("music.lib");
  11
  12 smooth(c)       = *(1-c) : +~*(c);
  13
  14
  15 vol             = *(vslider("fader", 0, -60, 4, 0.1) : db2linear : smooth(0.99));
  16
  17
  18 mute            = *(1 - checkbox("mute"));
  19
  20
  21 vumeter(x)      = attach(x, envelop(x) : vbargraph("", 0, 1))
  22                 with { envelop = abs : min(0.99) : max ~ -(1.0/SR); };
  23
  24 pan             = _ <: *(sqrt(1-c)), *(sqrt(c))
  25                 with { c = (nentry("pan",0,-8,8,1)-8)/-16 : smooth(0.99); };
  26
  27 voice(v)        = vgroup("voice %v",  mute : hgroup("", vol : vumeter) : pan);
  28
  29
  30 stereo          = hgroup("stereo out", vol, vol);
  31
  32
  33 process         = hgroup("mixer", par(i, 8, voice(i)) :> stereo);
  34
  35