Processing Piano Starter Code Not Working

lindsayhickson

I am in a beginning computer science class where they give us starter codes to do assignments on. In the past, I've run into the problem where, because they created the starter codes with a previous version of Processing, the new codes do not work. I've only been working with this program for a month and a half, so I really have no idea where to start. Can someone help me fix this or get it to work? I already imported the Minim library on my computer, but I am getting an error that states:

"This application, or a library it uses, is using the deprecated Carbon Component Manager for hosting Audio Units. Support for this will be removed in a future release. Also, this makes the host incompatible with version 3 audio units. Please transition to the API's in AudioComponent.h."

/****************************************************
 *                                                  *
 *   Processiano (Processing Piano) Starter Code    *
 *        for Thriving in our Digital World         *
 *                                                  *
 *   v.20131122 Bradley Beth                        *
 *                                                  *
 ***************************************************/
import ddf.minim.*;
import ddf.minim.signals.*;

Minim minim;
AudioOutput out;
Oscillator sound;
float A, B, C, D, E, F, G;
char currentNote;

void setup()
{
    C = 261.625565300598634;      //Middle C
    D = 293.664767917407560;
    E = 329.627556912869929;

    frameRate(120);
    textSize(32);
    fill(0);
    currentNote = ' ';
    minim = new Minim(this); 
    out = minim.getLineOut(Minim.MONO, 2048);

    sound = new SineWave(0,1.0,out.sampleRate());

    sound.portamento(10);
    out.addSignal(sound);
}

void draw() 
{
    background(255);
    text(currentNote, width/2-10, height/2+5);
}

void keyPressed()
{
    if (key != CODED)              //change display
      currentNote = key;           //only if necessary
    if (key == 'c')
      sound.setFreq(C);
    if (key == 'd')
      sound.setFreq(D);
    if (key == 'e')
      sound.setFreq(E);
}

void keyReleased()
{
    if (key == currentNote)
    {
      currentNote = ' ';
      sound.setFreq(0);
    }
}

void stop()
{
    out.close();
    minim.stop(); 
    super.stop();
}

GoToLoop

Just copied & pasted your code above in my 64-bit Processing v3.0.2 running under Win 7, and it's worked correctly and haven't seen neither error nor warning messages!

Tip: No need for the whole stop() block! O:-)

lindsayhickson

OH! I had just downloaded 3.0.2 before I started playing with it, but 3.0.1 was still open. Thank you!