CircuitTester.java

package com.jsyn.examples;

import java.awt.BorderLayout;

import javax.swing.JApplet;

import com.jsyn.JSyn;
import com.jsyn.Synthesizer;
import com.jsyn.scope.AudioScope;
import com.jsyn.swing.JAppletFrame;
import com.jsyn.swing.SoundTweaker;
import com.jsyn.unitgen.LineOut;
import com.jsyn.unitgen.UnitSource;

/**
 * Listen to a circuit while tweaking it knobs. Show output in a scope.
 * 
 * @author Phil Burk (C) 2012 Mobileer Inc
 * 
 */
public class CircuitTester extends JApplet
{
	private static final long serialVersionUID = -2704222221111608377L;
	private Synthesizer synth;
	private LineOut lineOut;
	private SoundTweaker tweaker;
	private UnitSource unitSource;
	private AudioScope scope;

	public void init()
	{
		setLayout( new BorderLayout() );

		synth = JSyn.createSynthesizer();
		synth.add( lineOut = new LineOut() );

		unitSource = createUnitSource();
		synth.add( unitSource.getUnitGenerator() );
		
		// Connect the source to both left and right speakers.
		unitSource.getOutput().connect( 0, lineOut.input, 0 );
		unitSource.getOutput().connect( 0, lineOut.input, 1 );

		tweaker = new SoundTweaker( synth, unitSource.getUnitGenerator().getClass().getName(), unitSource );
		add( tweaker, BorderLayout.CENTER );

		// Use a scope to see the output.
		scope = new AudioScope( synth );
		scope.addProbe( unitSource.getOutput() );
		scope.setTriggerMode( AudioScope.TriggerMode.NORMAL );
		scope.getView().setControlsVisible( false );
		add( BorderLayout.SOUTH, scope.getView() );
		
		validate();
	}

	/**
	 * Override this to test your own circuits.
	 * @return
	 */
	public UnitSource createUnitSource()
	{
		return new WindCircuit();
	}

	public void start()
	{
		// Start synthesizer using default stereo output at 44100 Hz.
		synth.start();
		// Start the LineOut. It will pull data from the other units.
		lineOut.start();
		
		scope.start();
	}

	public void stop()
	{
		scope.stop();
		synth.stop();
	}

	/* Can be run as either an application or as an applet. */
	public static void main( String args[] )
	{
		CircuitTester applet = new CircuitTester();
		JAppletFrame frame = new JAppletFrame( "JSyn Circuit Tester", applet );
		frame.setSize( 600, 600 );
		frame.setVisible( true );
		frame.test();
	}

}