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/*
* Copyright 2010 Phil Burk, Mobileer Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.jsyn.examples;
import java.awt.BorderLayout;
import java.util.ArrayList;
import javax.swing.JApplet;
import javax.swing.JLabel;
import com.jsyn.JSyn;
import com.jsyn.Synthesizer;
import com.jsyn.scope.AudioScope;
import com.jsyn.swing.JAppletFrame;
import com.jsyn.unitgen.Add;
import com.jsyn.unitgen.LineOut;
import com.jsyn.unitgen.SawtoothOscillatorBL;
import com.jsyn.unitgen.SineOscillator;
import com.jsyn.unitgen.TriangleOscillator;
import com.jsyn.unitgen.UnitOscillator;
/**
* Display waveforms using the AudioScope. The frequency of the oscillators is modulated by an LFO.
*
* @author Phil Burk (C) 2010 Mobileer Inc
*/
public class ShowWaves extends JApplet {
private static final long serialVersionUID = -8315903842197137926L;
private Synthesizer synth;
private UnitOscillator lfo;
private Add adder;
private ArrayList<UnitOscillator> oscillators = new ArrayList<UnitOscillator>();
private LineOut lineOut;
private AudioScope scope;
/* Can be run as either an application or as an applet. */
public static void main(String args[]) {
ShowWaves applet = new ShowWaves();
JAppletFrame frame = new JAppletFrame("ShowWaves", applet);
frame.setSize(640, 300);
frame.setVisible(true);
frame.test();
}
private void setupGUI() {
setLayout(new BorderLayout());
add(BorderLayout.NORTH, new JLabel("ShowWaves in an AudioScope Mod001"));
scope = new AudioScope(synth);
for (UnitOscillator osc : oscillators) {
scope.addProbe(osc.output);
}
scope.setTriggerMode(AudioScope.TriggerMode.NORMAL);
scope.start();
// Turn on the gain and trigger control GUI.
scope.getView().setControlsVisible(true);
add(BorderLayout.CENTER, scope.getView());
validate();
}
@Override
public void start() {
synth = JSyn.createSynthesizer();
// Add an LFO.
synth.add(lfo = new SineOscillator());
synth.add(adder = new Add());
// Add an output so we can hear the oscillators.
synth.add(lineOut = new LineOut());
lfo.frequency.set(0.1);
lfo.amplitude.set(200.0);
adder.inputB.set(400.0);
lfo.output.connect(adder.inputA);
oscillators.add(new SawtoothOscillatorBL());
oscillators.add(new SineOscillator());
oscillators.add(new TriangleOscillator());
for (UnitOscillator osc : oscillators) {
synth.add(osc);
adder.output.connect(osc.frequency);
osc.output.connect(0, lineOut.input, 0);
osc.amplitude.set(0.2);
}
// Start synthesizer using default stereo output at 44100 Hz.
synth.start();
// Start lineOut so it can pull data from other units.
lineOut.start();
setupGUI();
// We only need to start the LineOut. It will pull data from the
// oscillator.
lineOut.start();
}
@Override
public void stop() {
scope.stop();
synth.stop();
}
}
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