migrated ex/polysynth_old synths to ex/polyphonic_synth; added a velocity max range to polysynth

Author: jvntf

examples/polyphonic_synth/sketch.js

@@ -5,8 +5,8 @@ var real_wave = [];
 var imag_wave = []
 
 function preload(){
-  ptable_real = loadStrings('../polyphonic_synth/TwelveStringGuitar_real.txt'); 
-  ptable_imag = loadStrings('../polyphonic_synth/TwelveStringGuitar_imag.txt' ); 
+  ptable_real = loadStrings('Wurlitzer_2_imag.txt'); 
+  ptable_imag = loadStrings('Wurlitzer_2_real.txt' ); 
 }
 
 
@@ -29,6 +29,10 @@ function setup() {
     imag_wave[i] = float(ptable_imag[i]);
   }
 
+  //Uncomment for PeriodicWave
+  // psynth.audiovoices.forEach(function(voice){
+  //   voice.setParams({real: real_wave , imag: imag_wave});
+  // });
 
 }
 
@@ -40,66 +44,79 @@ function draw() {
 }
 
 function mousePressed(){
-
     var note = int(map(mouseX,0,width,200,440));
     var length = map(mouseY,0,300,0,5);
 
-
-
-    psynth.play(note,1,0,length);
-    psynth.noteADSR(note, 0.021,0.025,length,0.025);
-
-    var index = psynth.notes[note].getValueAtTime();
-    psynth.audiovoices[index].setParams({real: real_wave , imag: imag_wave});
-
-    //  uncomment for SquareVoice detune parameters
-    //var d = int(random(1,12));
-    //psynth.setParams({detune: d });
-
-    // uncomment for PeriodicWave
-    //psynth.setParams({real: real_wave , imag: imag_wave});
-    
-    
+    psynth.setADSR(0.021,0.025,length,0.025);
+    psynth.play(note,1,0,1);
 }
 
 
-//////////////////////////////////////////////////////////////////////////////
 function PeriodicWave(params){
-    p5.MonoSynth.call(this);
-
+    p5.AudioVoice.call(this);
+    this.osc = new p5.Oscillator('sine');
+    
     this.real = new Float32Array([0,0]) ;
     this.imag = new Float32Array([0,1]);
-
     this.wt = this.ac.createPeriodicWave(this.real,this.imag);
 
-    // this.oscillator = this.context.createOscillator();
-    this.oscillator.oscillator.setPeriodicWave(this.wt);
-    this.filter.setType('lowpass');
+    this.osc.disconnect();
+    this.osc.start();
+
+    this.env = new p5.Env(0.021,0.025,0.025,0.025,0.95,0.33,0.25);
+    this.env.disconnect();
+
+    this.filter = new p5.LowPass();
     this.filter.set(22050,5);
 
+
     this.env.connect(this.filter);
+    this.osc.connect(this.filter);
+
+    this.connect();
+    
+    this.filter.set(22050,5);
+
 
   this.setParams = function(params){
       this.real = new Float32Array(params.real);
       this.imag = new Float32Array(params.imag);
       this.wt = this.ac.createPeriodicWave(this.real, this.imag);
-      this.oscillator.oscillator.setPeriodicWave(this. wt);
+      this.osc.oscillator.setPeriodicWave(this. wt);      
+  }
+
+  this.setADSR = function(aTime,aLevel,dTime,dLevel) {
+    this.env.set(aTime, aLevel, dTime, dLevel)
+  }
+
+  this.play = function(){
+    this.env.play(this.filter);
+
   }
-  this.setADSR = function(a,d,s,r) {
-      this.attack = a;
-      this.decay=d;
-      this.sustain=s;
-      this.release=r;
-      this.volume = 1
-     this.env.set(this.attack, this.volume, this.decay, this.volume, this.release, this.volume); 
-      // this.env.set(this.attack, this.decay,  this.sustain, this.release); 
-      this.env.play(this.filter);
 
+  this.triggerAttack = function(note, velocity, secondsFromNow) {
+    var secondsFromNow = secondsFromNow || 0;
+
+    //triggerAttack uses ._setNote to convert a midi string to a frequency if necessary
+    var freq = typeof note === 'string' ? this._setNote(note)
+      : typeof note === 'number' ? note : 440;
+    var vel = velocity || 1;
+    // this.env.setRange(this.env.aLevel / velocity,0);
+    this._isOn = true;
+    this.osc.freq(freq, 0, secondsFromNow);
+    this.env.triggerAttack(this.filter, secondsFromNow);
+  
+  }
+
+  this.triggerRelease = function(secondsFromNow) {
+    var secondsFromNow = secondsFromNow || 0;
+    this.env.triggerRelease(this.filter,secondsFromNow);
+    this._isOn = false;
   }
 
 }
 
-PeriodicWave.prototype = Object.create(p5.MonoSynth.prototype); 
+PeriodicWave.prototype = Object.create(p5.AudioVoice.prototype); 
 PeriodicWave.prototype.constructor = PeriodicWave;
 
 
@@ -115,33 +132,91 @@ SquareVoice.prototype = Object.create(p5.MonoSynth.prototype);  // browsers supp
 SquareVoice.prototype.constructor = SquareVoice;
 
 //////////////////////////////////////////////////////////////////////////////////////////////
-// A second one
+// A Detuned synth
 function DetunedOsc(){
 
-  AudioVoice.call(this);
+  p5.MonoSynth.call(this);
 
   this.osctype = 'sine';
-  this.detune = 5;
+  this.detune = -5;
+
+  this.oscOne = this.oscillator;
+  this.oscTwo = new p5.Oscillator();
+
+  this.filter.setType('lowpass');
+  this.filter.set(22050,5);
 
-  this.oscOne = new p5.Oscillator(midiToFreq(this.note),this.osctype); 
-  this.oscTwo = new p5.Oscillator(midiToFreq(this.note)-this.detune,this.osctype);
   this.oscOne.disconnect();
   this.oscTwo.disconnect();
-  this.oscOne.start();
-  this.oscTwo.start();
+  
 
   this.oscOne.connect(this.filter);
   this.oscTwo.connect(this.filter);
 
-  this.setNote = function(note){
-      this.oscOne.freq(midiToFreq(note));
-      this.oscTwo.freq(midiToFreq(note)-this.detune);   
-  }
 
-  this.setParams = function(params){
-      this.detune = params.detune;
+  this.env.setInput(this.oscOne,this.oscTwo);
+
+  this.oscOne.start();
+  this.oscTwo.start();
+
+
+  this.triggerAttack = function(note, velocity, secondsFromNow) {
+    this.oscTwo.oscillator.detune.value
+    var secondsFromNow = secondsFromNow || 0;
+    var freq = typeof note === 'string' ? this._setNote(note)
+      : typeof note === 'number' ? note : 440;
+    var vel = velocity || 1;
+
+    this._isOn = true;
+
+    this.oscOne.freq(freq, 0, secondsFromNow);
+    this.oscTwo.freq(freq + this.detune, 0, secondsFromNow);
+    this.env.ramp(this.output, secondsFromNow, this.env.aLevel);
   }
+  
 }
 
-DetunedOsc.prototype = Object.create(p5.AudioVoice.prototype); 
+DetunedOsc.prototype = Object.create(p5.MonoSynth.prototype); 
 DetunedOsc.prototype.constructor = DetunedOsc;
+
+
+
+function AdditiveSynth(){
+  p5.MonoSynth.call(this);
+
+  this.osctype = 'triangle';
+  this.harmonics = [1,2,4,6,8];
+  this.note = 60;
+
+  this.oscbank =[];
+  this.oscillator.dispose();
+  delete this.oscillator;
+  this.env.disconnect();
+
+  for (var i = 0 ; i < this.harmonics.length; i++){
+    this.oscbank.push(new p5.Oscillator());
+    this.oscbank[i].setType(this.osctype);
+    this.oscbank[i].disconnect();
+    this.oscbank[i].connect(this.filter);
+    this.env.connect(this.oscbank[i]);
+    this.oscbank[i].start();
+  }
+
+  this.triggerAttack = function(note, velocity, secondsFromNow) {
+    var secondsFromNow = secondsFromNow || 0;
+    var freq = typeof note === 'string' ? this._setNote(note)
+      : typeof note === 'number' ? note : 440;
+    var vel = velocity || 1;
+
+    this._isOn = true;
+
+    for (var i = 0 ; i < this.harmonics.length; i++){
+      this.oscbank[i].freq(freq + midiToFreq(this.harmonics[i]*12),0,secondsFromNow);
+    }
+
+    this.env.ramp(this.output, secondsFromNow, this.env.aLevel);
+  }
+
+}
+AdditiveSynth.prototype = Object.create(p5.MonoSynth.prototype); 
+AdditiveSynth.prototype.constructor = AdditiveSynth;

examples/polysynth_old/index.html

@@ -60,7 +60,7 @@ define(function() {
    * Disconnect from soundOut
    * @method  disconnect
    */
-  p5.AudioVoice.prototype.disconect = function() {
+  p5.AudioVoice.prototype.disconnect = function() {
     this.output.disconnect();
   };
 

examples/polysynth_old/sketch.js

@@ -49,7 +49,9 @@ define(function (require) {
     // oscillator --> env --> filter --> this.output (gain) --> p5.soundOut
     this.oscillator.disconnect();
     this.oscillator.connect(this.filter);
+    this.env.disconnect();
     this.env.setInput(this.oscillator);
+    // this.env.connect(this.filter);
     this.filter.connect(this.output);
 
     this.oscillator.start();