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diff --git a/tests/com/jsyn/examples/PlayTone.java b/tests/com/jsyn/examples/PlayTone.java
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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 com.jsyn.JSyn;
+import com.jsyn.Synthesizer;
+import com.jsyn.unitgen.LineOut;
+import com.jsyn.unitgen.SineOscillator;
+import com.jsyn.unitgen.UnitOscillator;
+
+/**
+ * Play a tone using a JSyn oscillator.
+ * 
+ * @author Phil Burk (C) 2010 Mobileer Inc
+ */
+public class PlayTone {
+    Synthesizer synth;
+    UnitOscillator osc;
+    LineOut lineOut;
+
+    private void test() {
+
+        // Create a context for the synthesizer.
+        synth = JSyn.createSynthesizer();
+
+        // Start synthesizer using default stereo output at 44100 Hz.
+        synth.start();
+
+        // Add a tone generator.
+        synth.add(osc = new SineOscillator());
+        // Add a stereo audio output unit.
+        synth.add(lineOut = new LineOut());
+
+        // Connect the oscillator to both channels of the output.
+        osc.output.connect(0, lineOut.input, 0);
+        osc.output.connect(0, lineOut.input, 1);
+
+        // Set the frequency and amplitude for the sine wave.
+        osc.frequency.set(345.0);
+        osc.amplitude.set(0.6);
+
+        // We only need to start the LineOut. It will pull data from the
+        // oscillator.
+        lineOut.start();
+
+        System.out.println("You should now be hearing a sine wave. ---------");
+
+        // Sleep while the sound is generated in the background.
+        try {
+            double time = synth.getCurrentTime();
+            System.out.println("time = " + time);
+            // Sleep for a few seconds.
+            synth.sleepUntil(time + 4.0);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+
+        System.out.println("Stop playing. -------------------");
+        // Stop everything.
+        synth.stop();
+    }
+
+    public static void main(String[] args) {
+        new PlayTone().test();
+    }
+}