interpretor/preprocessor/faust-0.9.47mr3/examples/capture.dsp

   1 declare name            "capture";
   2 declare version         "1.0";
   3 declare author          "Grame";
   4 declare license         "BSD";
   5 declare copyright       "(c)GRAME 2006";
   6
   7 //-------------------------------------------------
   8 //              Capture : record up to 8s of sound and
   9 //              playback the recorded sound in loop
  10 //-------------------------------------------------
  11
  12 import("music.lib");
  13
  14 B = button("Capture");  // Capture sound while pressed
  15 I = int(B);                             // convert button signal from float to integer
  16 R = (I-I') <= 0;                // Reset capture when button is pressed
  17 D = (+(I):*(R))~_;              // Compute capture duration while button is pressed: 0..NNNN0..MMM
  18
  19
  20 capture = *(B) : (+ : delay(8*65536, D-1)) ~ *(1.0-B) ;
  21
  22
  23 smooth(c)       = *(1-c) : +~*(c);
  24 level           = hslider("level (db)", 0, -96, 4, 0.1) : db2linear : smooth(0.999);
  25
  26 process         = vgroup( "Audio Capture", capture : *(level) ) ;
  27