Hi,

I'm working on a graphical interface that displays each waveform (sine, triangle, saw & square) separate.

It doesn't seem to be possible to create multiple AudioOutputs and attach each AudioSignal individually to solve this.

Is there any other way I can display each waveform (AudioSignal) separate even if they are sounding simultaneously?

Hope somebody has a solution. Thanks!

// CODE EXAMPLE

import ddf.minim.*;
import ddf.minim.signals.*;

AudioOutput outSine;
AudioOutput outSaw;

SineWave sine;
SineWave saw;

void setup()
{
 size(512, 200);
 // always start Minim before you do anything with it
 Minim.start(this);

 // get a line out from Minim,
 // default sample rate is 44100, default bit depth is 16
 outSine = Minim.getLineOut(Minim.STEREO, 512);
 outSaw = Minim.getLineOut(Minim.STEREO, 512);

 // create a sine wave Oscillator,
 // set to 440 Hz, at 0.5 amplitude,
 // using the sample rate of the output
 sine = new SineWave(440, 0.5, outSine.sampleRate());
 saw = new SineWave(440, 0.5, outSaw.sampleRate());
 
 // add the oscillator to the line out
 outSine.addSignal(sine);
 outSaw.addSignal(saw);
}

void draw()
{
 background(0);
 stroke(255);
 // draw the waveforms
 for(int i = 0; i < outSine.left.size()-1; i++)
 {
   line(i, 50 + outSine.left.get(i)*50, i+1, 50 + outSine.left.get(i+1)*50);
   line(i, 150 + outSine.right.get(i)*50, i+1, 150 + outSine.right.get(i+1)*50);
 }
 
 for(int i = 0; i < outSaw.left.size()-1; i++)
 {
   line(i, 50 + outSaw.left.get(i)*50, i+1, 50 + outSaw.left.get(i+1)*50);
   line(i, 150 + outSaw.right.get(i)*50, i+1, 150 + outSaw.right.get(i+1)*50);
 }
 
}

void stop()
{
 // always close Minim audio classes when you are done with them
 outSine.close();
 outSaw.close();
 
 // always stop Minim before exiting
 Minim.stop();

 super.stop();
}

Yah, I'm behind on this. The most reliable source for info about the current API is the Javadoc, unfortunately.

Thanks Mots and Damien! It worked for me!