Version 3.2

2026-01-13 21:11:53 +00:00 · 2013-09-25 14:47:10 +02:00
parent 4b6500d3de
commit 3f126af4e5
443 changed files with 11772 additions and 8060 deletions
--- a/src/Brass.cpp
+++ b/src/Brass.cpp
@@ -0,0 +1,134 @@
+/******************************************/
+/*  Waveguide Brass Instrument Model ala  */
+/*  Cook (TBone, HosePlayer)              */
+/*  by Perry R. Cook, 1995-96             */
+/*                                        */
+/*  This is a waveguide model, and thus   */
+/*  relates to various Stanford Univ.     */
+/*  and possibly Yamaha and other patents.*/
+/*                                        */
+/*   Controls:    CONTROL1 = lipTension   */
+/*                CONTROL2 = slideLength  */
+/*		  CONTROL3 = vibFreq      */
+/*		  MOD_WHEEL= vibAmt       */
+/******************************************/
+
+#include "Brass.h"
+#include "SKINI11.msg"
+
+Brass :: Brass(MY_FLOAT lowestFreq)
+{
+  length = (long) (SRATE / lowestFreq + 1);
+  delayLine = new DLineA(length);
+  lipFilter = new LipFilt;
+  dcBlock = new DCBlock;
+  adsr = new ADSR;
+  adsr->setAllTimes((MY_FLOAT) 0.005, (MY_FLOAT) 0.001, (MY_FLOAT) 1.0, (MY_FLOAT) 0.010);
+
+  // Concatenate the STK RAWWAVE_PATH to the rawwave file
+  char file[128];
+  strcpy(file, RAWWAVE_PATH);
+  vibr = new RawWvIn(strcat(file,"rawwaves/sinewave.raw"),"looping");
+  this->clear();
+
+  vibr->setFreq((MY_FLOAT)  6.137);
+  vibrGain = (MY_FLOAT)  0.05;            /* breath periodic vibrato component  */
+
+	maxPressure = (MY_FLOAT) 0.0;
+}
+
+Brass :: ~Brass()
+{
+  delete delayLine;
+  delete lipFilter;
+  delete dcBlock;
+  delete adsr;
+  delete vibr;
+}
+
+void Brass :: clear()
+{
+  delayLine->clear();
+  lipFilter->clear();
+  dcBlock->clear();
+}
+
+void Brass :: setFreq(MY_FLOAT frequency)
+{
+  slideTarget = (SRATE / frequency * (MY_FLOAT) 2.0) + (MY_FLOAT) 3.0;
+  /* fudge correction for filter delays */
+  delayLine->setDelay(slideTarget);   /*  we'll play a harmonic  */
+  lipTarget = frequency;
+  lipFilter->setFreq(frequency);
+}
+
+void Brass :: setLip(MY_FLOAT frequency)
+{
+  lipFilter->setFreq(frequency);
+}
+
+void Brass :: startBlowing(MY_FLOAT amplitude,MY_FLOAT rate)
+{
+  adsr->setAttackRate(rate);
+  maxPressure = amplitude;
+  adsr->keyOn();
+}
+
+void Brass :: stopBlowing(MY_FLOAT rate)
+{
+  adsr->setReleaseRate(rate);
+  adsr->keyOff();
+}
+
+void Brass :: noteOn(MY_FLOAT freq, MY_FLOAT amp)
+{
+  this->setFreq(freq);
+  this->startBlowing(amp, amp * (MY_FLOAT) 0.001);
+#if defined(_debug_)        
+  printf("Brass : NoteOn: Freq=%lf Amp=%lf\n",freq,amp);
+#endif    
+}
+
+void Brass :: noteOff(MY_FLOAT amp)
+{
+  this->stopBlowing(amp * (MY_FLOAT) 0.005);
+#if defined(_debug_)        
+  printf("Brass : NoteOff: Amp=%lf\n",amp);
+#endif    
+}
+
+MY_FLOAT Brass :: tick()
+{
+  MY_FLOAT breathPressure;
+
+  breathPressure = maxPressure * adsr->tick();
+  breathPressure += vibrGain * vibr->tick();
+  lastOutput = delayLine->tick(                                 /* bore delay  */
+               dcBlock->tick(                                   /* block DC    */
+               lipFilter->tick((MY_FLOAT) 0.3 * breathPressure, /* mouth input */
+                     (MY_FLOAT) 0.85 * delayLine->lastOut()))); /* and bore reflection */
+  return lastOutput;
+}
+
+void Brass :: controlChange(int number, MY_FLOAT value)
+{
+  MY_FLOAT temp;
+#if defined(_debug_)        
+  printf("Brass : ControlChange: Number=%i Value=%f\n",number,value);
+#endif    
+  if (number == __SK_LipTension_)	{
+    temp = lipTarget * (MY_FLOAT) pow(4.0,(2.0*value*NORM_7) - 1.0);
+    this->setLip(temp);
+  }
+  else if (number == __SK_SlideLength_)
+    delayLine->setDelay(slideTarget * ((MY_FLOAT) 0.5 + (value * NORM_7)));  
+  else if (number == __SK_ModFrequency_)
+		vibr->setFreq((value * NORM_7 * (MY_FLOAT) 12.0));
+  else if (number == __SK_ModWheel_ )
+		vibrGain = (value * NORM_7 * (MY_FLOAT) 0.4);
+  else if (number == __SK_AfterTouch_Cont_)
+    adsr->setTarget(value * NORM_7);
+  else    {        
+    printf("Brass : Undefined Control Number!!\n");
+  }  
+}