Archive for the 'ess r2' Category

Apr 19 2009

Maestro 0.5b

Published by Michael Doyle under JMyron, MIDI, Processing, controlP5, ess r2

I've given another last shot to the piano, it's working now. I removed proMIDI from it and implented ess r2, however, i don't have time to work on it anymore. I'm finishing the final report at the moment.

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Apr 12 2009

Maestro Version 1.1b

Published by Michael Doyle under JMyron, Processing, controlP5, ess r2

I've revisted version 1.1 as the 1.2's Sine class is making it difficult to add on to at the moment. So, 1.1b is changing the pitch of a sine wave on the Y axis and changing the pitch of a triangle wave on the X axis. Here is the code:

  1. import JMyron.*;
  2. import krister.Ess.*;
  3. import controlP5.*;
  4. JMyron m; //a camera object
  5. ControlP5 controlP5;
  6. AudioChannel myChannel;
  7. AudioChannel myChannel2;
  8. SineWave myWave;
  9. TriangleWave myWave2;
  10. float volume=1;
  11. int pitch=400;
  12. int release=10000;
  13. FadeIn myFadeIn;
  14. FadeOut myFadeOut;
  15.  
  16. FadeIn myFadeIn2;
  17. FadeOut myFadeOut2;
  18.  
  19. LowPass myLowPass;
  20.  
  21. int r;
  22. int g;
  23. int b;
  24. int min_size = 50;
  25. int max_size=100;
  26. int sensitivity = 35;
  27. float objx = 160;
  28. float objy = 120;
  29. float objdestx = 160;
  30. float objdesty = 120;
  31.  
  32. void setup(){
  33.   size(720,576);
  34.   m = new JMyron();//make a new instance of the object
  35.   m.start(width,height);//start a capture at 320x240
  36.   m.findGlobs(1);//disable the intelligence to speed up frame rate
  37.   controlP5 = new ControlP5(this);
  38.   /*
  39.   controlP5.addSlider("sensitivity",0,255,40,10,10,10,100).setId(1);
  40.    name, low val, high val, default val, x, y, width, height,
  41.    */
  42.   controlP5.addSlider("sensitivity",0,255,sensitivity,10,10,10,100).setId(1);
  43.   controlP5.addSlider("min size",0,800,min_size,60,10,10,100).setId(2);
  44.   //controlP5.addSlider("max size",0,400,max_size,100,10,10,100).setId(3);
  45.   //println("here are the globs:"  + m.globCenters());
  46.    Ess.start(this);
  47.    myChannel=new AudioChannel();
  48.    myChannel2=new AudioChannel();
  49.    myFadeIn=new FadeIn();
  50.    myFadeOut=new FadeOut();
  51.    myFadeIn2=new FadeIn();
  52.    myFadeOut2=new FadeOut();
  53.  
  54. }
  55.  
  56. void draw(){
  57.   m.update();//update the camera view
  58.   m.trackColor(r,g,b,sensitivity);
  59.   m.minDensity(min_size);
  60.   //m.maxDensity(max_size);
  61.   int[] img = m.image(); //get the normal image of the camera
  62.  
  63.   loadPixels();
  64.   for(int i=0;i<width*height;i++){ //loop through all the pixels
  65.     pixels[i] = img[i]; //draw each pixel to the screen
  66.   }
  67.   updatePixels();
  68.  
  69.   stroke(0,255,0);
  70.   int[][][] list = m.globEdgePoints(30);//get the outlines
  71.   for(int i=0;i
  72. <list.length;i++){
  73.     beginShape();
  74.     if(list[i]!=null){
  75.       for(int ii=0;ii<list[i].length;ii++){
  76.         vertex(list[i][ii][0],list[i][ii][1]);
  77.       }
  78.     }
  79.     endShape();
  80.   }
  81.   int[][] centers = m.globCenters();//get the center points
  82.   //draw all the dots while calculating the average.
  83.   //println("Amount of globs: " + centers.length);
  84.   float avX=0;
  85.   float avY=0;
  86.   for(int i=0;i<centers.length;i++){
  87.     fill(0);
  88.     rect(centers[i][0],centers[i][1],1,1);
  89.     avX += centers[i][0];
  90.     avY += centers[i][1];
  91.   }
  92.   if(centers.length-1>0){
  93.     avX/=centers.length-1;
  94.     avY/=centers.length-1;
  95.   }
  96.  
  97.   //draw the average of all the points in red.
  98.   fill(255,0,0);
  99.   rect(avX,avY,5,5);
  100.  
  101.   //update the location of the thing on the screen.
  102.   if(!(avX==0&&avY==0)&&centers.length>0){
  103.     objdestx = avX;
  104.     objdesty = avY;
  105.   }
  106.   objx += (objdestx-objx)/5.0f;
  107.   objy += (objdesty-objy)/5.0f;
  108.  
  109.   fill(30,100,0);
  110.   ellipseMode(CENTER);
  111.   ellipse(objx,objy,25,25);
  112.   //println("X of Glob:" + objx + "Y of Glob:" + objy);
  113.   //println("the avx variable:" + avX);
  114.   myWave=new SineWave(objy,volume);
  115.   myWave2=new TriangleWave(objx,1);
  116.  
  117.   myChannel2.initChannel(myChannel2.frames(release));
  118.   myChannel.initChannel(myChannel2.frames(release));
  119.  
  120.   myWave.generate(myChannel,5,myChannel.frames(release));
  121.   myWave2.generate(myChannel2,0,myChannel2.frames(release));
  122.  
  123.   myFadeOut.filter(myChannel);
  124.   myFadeIn.filter(myChannel);
  125.  
  126.   myFadeOut2.filter(myChannel2);
  127.   myFadeIn2.filter(myChannel2);
  128. }
  129.  
  130. void controlEvent(ControlEvent theEvent) {
  131.   switch(theEvent.controller().id()) {
  132.  
  133.     case(1):
  134.     sensitivity = (int)(theEvent.controller().value());
  135.     print("sensitivity changed to " + sensitivity + "\n");
  136.     break;  
  137.  
  138.     case(2):
  139.     min_size = (int)(theEvent.controller().value());
  140.     break;
  141.  
  142.     case(3):
  143.     max_size = (int)(theEvent.controller().value());
  144.     break;
  145.  
  146.   }
  147.  
  148. }
  149.  
  150. void mouseClicked(MouseEvent m) {
  151.   if (mouseEvent.getClickCount() == 2) {
  152.     mouseX = m.getX();
  153.     mouseY = m.getY();
  154.     println("The co-ordinates of the mouse click are:");
  155.     println("X:" + mouseX + " Y:" + mouseY);
  156.     int c = get(mouseX, mouseY);
  157.     r = int(red(c));
  158.     g = int(green(c));
  159.     b = int(blue(c));
  160.     println ("R: " + r + " G: " + g + " B: " + b + " Sens: " + sensitivity);
  161.  
  162.     myChannel.play();
  163.     myChannel2.play();
  164.     return;
  165.   }
  166. }
  167.  
  168. public void stop(){
  169.   Ess.stop();
  170.   m.stop();//stop the object
  171.   super.stop();
  172. }

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Apr 12 2009

Maestro Version 1.2

Published by Michael Doyle under JMyron, Processing, controlP5, ess r2

Added functionality:

  • Clicking removed when changing frequencies (script from discourse)
  • Drum beat keypress added (keypress D)
  • Recording of sounds (keypress R)
  • Playback of recorded sound (keypress S)

Here's the code:

  1. import JMyron.*; //import JMyron
  2. import krister.Ess.*; //import Ess
  3. import controlP5.*; //import controlP5
  4.  
  5. JMyron m; //create camera object
  6. ControlP5 controlP5; //create controlP5 object
  7. AudioStream  speaker; //Create an audiostream object
  8. Sine mSine; //create a sine object from the sine class
  9.  
  10. FadeIn myFadeIn; //create a fadein object
  11. FadeOut myFadeOut; //create a fadeout object
  12.  
  13. boolean recording=false;
  14. AudioFile myFile;
  15. int bytesWritten;
  16. AudioStream myStream;
  17. SineWave myWave;
  18.  
  19. AudioChannel myChannel;
  20. AudioChannel mySound;
  21.  
  22. int r; //intialise the red color as an int
  23. int g; //initialise the green color as an int
  24. int b; //intialise the blue color as an int
  25.  
  26. int min_size = 50;
  27. int max_size=100;
  28. int sensitivity = 50;
  29.  
  30. float objx = 160;
  31. float objy = 120;
  32. float objdestx = 160;
  33. float objdesty = 120;
  34.  
  35. float volume = 0.2;
  36.  
  37. void setup(){
  38.   size(720,576);
  39.   m = new JMyron();//make a new instance of the object
  40.   m.start(width,height); //start a capture with the height and width
  41.   m.findGlobs(1); //invoke the findGlobs method on the JMyron object
  42.  
  43.   controlP5 = new ControlP5(this); //initiate a controlP5 object
  44.   controlP5.addSlider("sensitivity",0,255,sensitivity,10,10,10,100).setId(1); //add a slider to the controlP5 object that will change the sensitivty of trackcolor method of JMyron
  45.   controlP5.addSlider("min size",0,800,min_size,60,10,10,100).setId(2); //add a slider to the control P5 object that will change the minimum size of the detectable pixels of the minDensity of JMyron
  46.   controlP5.addSlider("volume",0,3,volume,120,10,10,100).setId(3); //add a slider to the control P5 object that will change the minimum size of the detectable pixels of the minDensity of JMyron
  47.  
  48.   Ess.start(this); //start the ess object
  49.   speaker = new AudioStream(); //initiate a new AudioStram object
  50.   mSine = new Sine(0, volume, speaker.sampleRate);  //define a new since wave of set values
  51.   myFile=new AudioFile();
  52.   speaker.start(); //start the new audioStream Object
  53.  
  54.   myChannel = new AudioChannel("drum.wav");
  55.   mySound = new AudioChannel("recording.wav");
  56. }
  57.  
  58. void draw(){
  59.   m.update(); //update the camera view
  60.   m.trackColor(r,g,b,sensitivity); //track the rgb and sensitivity to track the rgb
  61.   m.minDensity(min_size); //minimum pixels in the glob required to result in a box
  62.   int[] img = m.image(); //get the normal image of the camera
  63.   loadPixels(); //load the pixels
  64.  
  65.   for(int i=0;i<width*height;i++){ //loop through all the pixels
  66.     pixels[i] = img[i]; //put all the values in the img array into the pixel array
  67.  
  68.   }
  69.   updatePixels(); //update the pixels on screen
  70.  
  71.   stroke(r - 25,g-25,b-25); //set the stroke to the selected color and reduce the outline
  72.   int[][][] list = m.globEdgePoints(30); //create a 3 dimensional array called list and place all the points desciribing the outlines of each glob
  73.  
  74.   for(int i=0;i
  75. <list.length;i++){ //loop through the list array of GlobEdgePoints
  76.     beginShape(); //start recording the vertices for the shape
  77.     if(list[i]!=null){ //if the list of globEdgePoints is not empty
  78.       for(int ii=0;ii<list[i].length;ii++){ //create an int ii, loop through the list array of globEdgePoints
  79.         vertex (list[i][ii][0],list[i][ii][1]); //draw the boxes for the globs points and connect them
  80.         fill(r,g,b); //set the fill color of the glob area to the selected color
  81.       }
  82.     }
  83.     endShape();
  84.   }
  85.   int[][] centers = m.globCenters(); //create an array to find the center points off all the globs
  86.   //draw all the dots while calculating the average.
  87.   //println("Amount of globs: " + centers.length);
  88.  
  89.   float avX=0; //initialise a float integer avX
  90.   float avY=0; //initialise a float integer avY
  91.  
  92.   for(int i=0;i<centers.length;i++){ //a for loop that runs for the amount of center points that exist
  93.     fill(0); //give them a color of black
  94.     rect(centers[i][0],centers[i][1],1,1); //draw the centers at the given array values and make them 1x1 pixel in size
  95.     avX += centers[i][0]; //equal to avX = avX + centers[i][0]
  96.     avY += centers[i][1]; //equal to avY = avY + centers[i][1]
  97.   }
  98.  
  99.   if(centers.length-1>0){ //if the amount of centers -1 is greater than 0
  100.     avX/=centers.length-1; //equal to avX = avX / the length of the centers array - 1
  101.     avY/=centers.length-1; //equal to avY = avY / the length of the centers array - 1
  102.   }
  103.  
  104.   //draw the average of all the points in red.
  105.   fill(255,0,0);
  106.   rect(avX,avY,5,5);
  107.  
  108.   //update the location of the thing on the screen.
  109.   if(!(avX==0&&avY==0)&&centers.length>0){ //if the averages of the center points and are not at 0 and the centers array is greater than 0
  110.     objdestx = avX; //set objestx to avX
  111.     objdesty = avY; //set objesty to avY
  112.   }
  113.   objx += (objdestx-objx)/5.0f; //equal to objx to objx + (objdestx-objx)/2.0f, f declares it a float
  114.   objy += (objdesty-objy)/5.0f; //equal to objY to objy + (objdesty-objy)/2.0f
  115.  
  116.   fill(r*2,g*2,b*2); //the fill color is twice the value that was clicked on
  117.   ellipseMode(CENTER); //center an elipse around that point
  118.   ellipse(objx,objy,25,25); //the position of the glob is set to objx and objy, it's 5 pixels in height and width
  119.  
  120.   mSine.setFreq( map(objy, 0, width, 2880, 0) );  //map the frequency of the Sine to the Y axis based between 2880 and 0 of the intial freq
  121.  
  122.   //println("X of Glob:" + objx + "Y of Glob:" + objy);
  123.   //println("the avx variable:" + avX);
  124.  
  125. }
  126.  
  127. void audioStreamWrite(AudioStream s)
  128. {
  129.   mSine.generate(s); //generate the sine wave
  130.   if (recording) {
  131.     myFile.write(speaker);
  132.     bytesWritten+=speaker.size*2;
  133.   }
  134. }
  135.  
  136. void controlEvent(ControlEvent theEvent) { //controlP5 controller stuff
  137.   switch(theEvent.controller().id()) {
  138.  
  139.     case(1):
  140.     sensitivity = (int)(theEvent.controller().value()); //set the sensitivity
  141.     print("sensitivity changed to " + sensitivity + "\n");
  142.     break;  
  143.  
  144.     case(2):
  145.     min_size = (int)(theEvent.controller().value()); //set the minimum size of the pixels that we will track
  146.     break;
  147.  
  148.     case(3):
  149.     volume = (float)(theEvent.controller().value()); //set the volum
  150.     break;
  151.  
  152.   }
  153.  
  154. }
  155.  
  156. void mouseClicked(MouseEvent m) {
  157.   if (mouseEvent.getClickCount() == 2) { //if they are 2 mouse clicks
  158.     mouseX = m.getX(); //get the mouse horizontal value of the JMyron object
  159.     mouseY = m.getY(); //get the mouse vertical value of the JMyron object
  160.     println("The co-ordinates of the mouse click are:");
  161.     println("X:" + mouseX + " Y:" + mouseY);
  162.     int c = get(mouseX, mouseY);   //initialise c as the x and y co-ords of the mouse
  163.     r = int(red(c));   //get the red int value of c
  164.     g = int(green(c)); //get the green int value of c
  165.     b = int(blue(c)); //get the blue int value of c
  166.     println ("R: " + r + " G: " + g + " B: " + b + " Sens: " + sensitivity);
  167.  
  168.   }
  169. }
  170.  
  171. void keyPressed() {
  172.   if(key=='r') {
  173.   if (recording) {
  174.     // stop
  175.     myFile.close();
  176.  
  177.     println("Finished recording. "+bytesWritten+" bytes written.");
  178.   } else {
  179.     // start
  180.     myFile.open(dataPath("recording.wav"),speaker.sampleRate,Ess.WRITE);
  181.     bytesWritten=0;
  182.  
  183.     println("Recording started.");
  184.   }
  185.  
  186.   recording=!recording;
  187.   }
  188.   if(key=='d') {
  189.     println("drum!");
  190.     myChannel.play();
  191.  
  192. }
  193.   if(key=='s') {
  194.     println("Play recording");
  195.     mySound.play();
  196.  
  197. }
  198. }
  199.  
  200. public void stop(){
  201.   m.stop(); //stop the object
  202.   super.stop();
  203. }
  204.  

Sine Class

  1. class Sine
  2. {
  3.   private float freq, newFreq;
  4.   private float amp;
  5.   private float stepSize;
  6.   private float step;
  7.  
  8.   Sine(float f, float a, float s)
  9.   {
  10.     freq = f;
  11.     newFreq = freq;
  12.     amp = a;
  13.     stepSize = 1/s;
  14.     step = 0;
  15.   }
  16.  
  17.   void setFreq(float f)
  18.   {
  19.     newFreq = f;
  20.   }
  21.  
  22.   boolean generate(AudioOutput ao)
  23.   {
  24.     float[] buff = new float[ao.buffer.length];
  25.     boolean alert = generate(buff);
  26.     arraycopy(buff, 0, ao.buffer2, ao.buffer.length, buff.length);
  27.     arraycopy(buff, 0, ao.buffer, 0, buff.length);
  28.     return alert;
  29.   }
  30.  
  31.   boolean generate(float[] buff)
  32.   {
  33.     boolean alert = freq != newFreq;
  34.     for ( int i = 0; i < buff.length; i++ )
  35.     {
  36.       buff[i] = amp*sin(freq*TWO_PI*step);
  37.       if ( abs(freq-newFreq) < 0.1f ) freq = newFreq;
  38.       else if ( freq < newFreq ) freq += 0.1f;
  39.       else if ( freq > newFreq ) freq -= 0.1f;
  40.       step += stepSize;
  41.       if ( step > 1/freq ) step %= 1/freq;
  42.     }
  43.     return alert;
  44.   }
  45.  
  46. }

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Apr 10 2009

Interaction Update

Published by Michael Doyle under JMyron, MIDI, Processing, ess r2, proMIDI

After playing around with the last interaction example, a sound is generated if my hand goes over a button. I'm going to try and develop this with MIDI to create a virtual piano. Should be fun....

No responses yet

Apr 09 2009

Maestro Version 1.1

Published by Michael Doyle under JMyron, Processing, ess r2

Major breakthrough. I've got a digital thermin created, although it isn't very polished, it's working!  The play method is placed in the mouose event method, and updates each time the average point is updated. The click is still occuring, however, I will try and change the priginal prototype to AudioStreams rather than channels to see if it'll sort that out.

Here's the code:

import JMyron.*;
import krister.Ess.*;
import controlP5.*;
JMyron m;//a camera object
ControlP5 controlP5;
AudioChannel myChannel;
SineWave myWave;
float volume=1;
int pitch=400;
int release=10000;
FadeIn myFadeIn;
FadeOut myFadeOut;
 
int r;
int g;
int b;
int min_size = 50;
int max_size=100;
int sensitivity = 35;
float objx = 160;
float objy = 120;
float objdestx = 160;
float objdesty = 120;
 
void setup(){
  size(720,576);
  m = new JMyron();//make a new instance of the object
  m.start(width,height);//start a capture at 320x240
  m.findGlobs(1);//disable the intelligence to speed up frame rate
  controlP5 = new ControlP5(this);
  /*
  controlP5.addSlider("sensitivity",0,255,40,10,10,10,100).setId(1);
   name, low val, high val, default val, x, y, width, height,
   */
  controlP5.addSlider("sensitivity",0,255,sensitivity,10,10,10,100).setId(1);
  controlP5.addSlider("min size",0,800,min_size,60,10,10,100).setId(2);
  //controlP5.addSlider("max size",0,400,max_size,100,10,10,100).setId(3);
  //println("here are the globs:"  + m.globCenters());
   Ess.start(this);
   myChannel=new AudioChannel();
   myFadeIn=new FadeIn();
   myFadeOut=new FadeOut();
 
}
 
void draw(){
  m.update();//update the camera view
  m.trackColor(r,g,b,sensitivity);
  m.minDensity(min_size);
  //m.maxDensity(max_size);
  int[] img = m.image(); //get the normal image of the camera
 
  loadPixels();
  for(int i=0;i<width*height;i++){ //loop through all the pixels
    pixels[i] = img[i]; //draw each pixel to the screen
  }
  updatePixels();
 
  stroke(0,255,0);
  int[][][] list = m.globEdgePoints(30);//get the outlines
  for(int i=0;i
<list.length;i++){
    beginShape();
    if(list[i]!=null){
      for(int ii=0;ii<list[i].length;ii++){
        vertex(list[i][ii][0],list[i][ii][1]);
      }
    }
    endShape();
  }
  int[][] centers = m.globCenters();//get the center points
  //draw all the dots while calculating the average.
  //println("Amount of globs: " + centers.length);
  float avX=0;
  float avY=0;
  for(int i=0;i<centers.length;i++){
    fill(0);
    rect(centers[i][0],centers[i][1],1,1);
    avX += centers[i][0];
    avY += centers[i][1];
  }
  if(centers.length-1>0){
    avX/=centers.length-1;
    avY/=centers.length-1;
  }
 
  //draw the average of all the points in red.
  fill(255,0,0);
  rect(avX,avY,5,5);
 
  //update the location of the thing on the screen.
  if(!(avX==0&&avY==0)&&centers.length>0){
    objdestx = avX;
    objdesty = avY;
  }
  objx += (objdestx-objx)/10.0f;
  objy += (objdesty-objy)/10.0f;
  fill(30,100,0);
  ellipseMode(CENTER);
  ellipse(objx,objy,25,25);
  println("X of Glob:" + objx + "Y of Glob:" + objy);
  println("the avx variable:" + avX);
 
                myWave=new SineWave(objx,volume);
    myChannel.initChannel(myChannel.frames(release));
    myWave.generate(myChannel,5,myChannel.frames(release));
    myFadeOut.filter(myChannel);
    myFadeIn.filter(myChannel);
}
 
void controlEvent(ControlEvent theEvent) {
  switch(theEvent.controller().id()) {
 
    case(1):
    sensitivity = (int)(theEvent.controller().value());
    print("sensitivity changed to " + sensitivity + "\n");
    break;  
 
    case(2):
    min_size = (int)(theEvent.controller().value());
    break;
 
    case(3):
    max_size = (int)(theEvent.controller().value());
    break;
 
  }
 
}
 
void mouseClicked(MouseEvent m) {
  if (mouseEvent.getClickCount() == 2) {
    mouseX = m.getX();
    mouseY = m.getY();
    println("The co-ordinates of the mouse click are:");
    println("X:" + mouseX + " Y:" + mouseY);
    int c = get(mouseX, mouseY);
    r = int(red(c));
    g = int(green(c));
    b = int(blue(c));
    println ("R: " + r + " G: " + g + " B: " + b + " Sens: " + sensitivity);
 
    myChannel.play();
    return;
  }
}
 
public void stop(){
  m.stop();//stop the object
  super.stop();
}

No responses yet

Apr 09 2009

Tracking pixels

Published by Michael Doyle under JMyron, Processing, controlP5, ess r2

For testing purposes, I have added the tracking of the pixels of a certain value and the average point of these. This allows me to grab the x and y co-ordinates of the average point an, hopefully, work the ess prototype around it.

    No responses yet

    Mar 26 2009

    ess r2 clicking

    Published by Michael Doyle under Processing, controlP5, ess r2

    I've been looking around the processing forum and found a few tips to try out. Seemingly, it's better to use Streams in ess rather than channels, which is what I am using. Also, specific frequencies can be set rather than just the float values I've been using. More testing is needed on this one.

    No responses yet

    Mar 24 2009

    Audio fade

    Published by Michael Doyle under Processing, controlP5, ess r2

    Playing around with the fade functions with ess r2. It's smoother and working better (kinda). The fade function works but, if I click mid note, a click can be heard and the sine wave doesn't fade in. A loud pop is heard and then the sine wave plays for the full volume for about quarter of a second. I also got controlP5 to update the values when the slider is activated. this was due to not calling the background function in void draw. Here's the code so far:

    1. import krister.Ess.*;
    2. import controlP5.*;
    3. ControlP5 controlP5;
    4. AudioChannel myChannel;
    5. SineWave myWave;
    6. float volume=0.5;
    7. int pitch=400;
    8. int release=1000;
    9. FadeIn myFadeIn;
    10. FadeOut myFadeOut;
    11.  
    12. void setup() {
    13.   //background(0);
    14.   //frameRate(25);
    15.   size(256,200);
    16.   Ess.start(this);
    17.   myChannel=new AudioChannel();
    18.   controlP5 = new ControlP5(this);
    19.   controlP5.addSlider("Pitch",400,700,40,10,10,10,100).setId(1);
    20.   controlP5.addSlider("Volume",0,2,40,70,10,10,100).setId(2);
    21.   controlP5.addSlider("Release",1000,8000,40,120,10,10,100).setId(3);
    22.         myFadeIn=new FadeIn();
    23.         myFadeOut=new FadeOut();
    24.  
    25. }
    26.  
    27. void controlEvent (ControlEvent theEvent) {
    28.   switch(theEvent.controller().id()) {
    29.  
    30.     case(1):
    31.     pitch = (int)(theEvent.controller().value());
    32.     //print("the pitch changed to " + pitch + "\n");
    33.     break;
    34.  
    35.     case(2):
    36.     volume = (float)(theEvent.controller().value());
    37.     //print("the VOLUME changed to " + volume + "\n");
    38.     break;
    39.  
    40.     case(3):
    41.     release = (int)(theEvent.controller().value());
    42.     //print("the note length changed to " + release + "\n");
    43.     break;
    44.   }
    45.  
    46.       myWave=new SineWave(pitch,volume);
    47.     myChannel.initChannel(myChannel.frames(release));
    48.     myWave.generate(myChannel,5,myChannel.frames(release));
    49.     myFadeOut.filter(myChannel);
    50.     myFadeIn.filter(myChannel);
    51.  
    52.     myChannel.play();
    53. }
    54.  
    55. void draw() {
    56.   background(0);
    57. } 
    58.  
    59. public void stop() {
    60.   Ess.stop();
    61.   super.stop();
    62. }
    63.  

    No responses yet

    Mar 23 2009

    controlP5 + ess r2 Update

    Published by Michael Doyle under Processing, controlP5, ess r2

    Had the meeting with Pat today and he advised me to look into fading the audio to get rid of the clicking sound, he also I should concentrate more on the audio side of things as JMyron has eaten up a lot of my time.
    I had a quick look at the reference pages on ess r2 and there's a fade filter which may suffice.

    No responses yet

    Mar 22 2009

    ControlP5 + ess r2

    Published by Michael Doyle under Processing, controlP5, ess r2

    Got a simple throwaway prototype working for sound. ControlP5 is manipulating sine waves being generated in realtime. It's a little buggy, the sound is clicking a lot which may have something to do with the buffer, and controlP5's slider values are not updating on the screen. Here's the code so far:

    1. import krister.Ess.*;
    2. import controlP5.*;
    3. ControlP5 controlP5;
    4. AudioChannel myChannel;
    5. SineWave myWave;
    6. float volume=0.5;
    7. int pitch=400;
    8. int release=1000;
    9.  
    10. void setup() {
    11.   background(0);
    12.   size(256,200);
    13.   Ess.start(this);
    14.   myChannel=new AudioChannel();
    15.   controlP5 = new ControlP5(this);
    16.   controlP5.addSlider("Pitch",400,700,40,10,10,10,100).setId(1);
    17.   controlP5.addSlider("Volume",0,2,40,70,10,10,100).setId(2);
    18.   controlP5.addSlider("Release",1000,8000,40,120,10,10,100).setId(3);
    19.  
    20. }
    21.  
    22. void controlEvent (ControlEvent theEvent) {
    23.   switch(theEvent.controller().id()) {
    24.  
    25.     case(1):
    26.     pitch = (int)(theEvent.controller().value());
    27.     //print("the pitch changed to " + pitch + "\n");
    28.     break;
    29.  
    30.     case(2):
    31.     volume = (float)(theEvent.controller().value());
    32.     //print("the VOLUME changed to " + volume + "\n");
    33.     break;
    34.  
    35.     case(3):
    36.     release = (int)(theEvent.controller().value());
    37.     //print("the note length changed to " + release + "\n");
    38.     break;
    39.   }
    40.  
    41.       myWave=new SineWave(pitch,volume);
    42.     myChannel.initChannel(myChannel.frames(release));
    43.     myWave.generate(myChannel,5,myChannel.frames(release));
    44.  
    45.     myChannel.play();
    46. }
    47.  
    48. void draw() {
    49.   controlP5.update();
    50. } 
    51.  
    52. public void stop() {
    53.   Ess.stop();
    54.   super.stop();
    55. }
    56.  

    No responses yet

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