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diff --git a/tests/com/jsyn/util/DebugSampleLoader.java b/tests/com/jsyn/util/DebugSampleLoader.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.util;
+
+import java.io.File;
+import java.io.IOException;
+
+import com.jsyn.JSyn;
+import com.jsyn.Synthesizer;
+import com.jsyn.data.FloatSample;
+import com.jsyn.unitgen.LineOut;
+import com.jsyn.unitgen.VariableRateDataReader;
+import com.jsyn.unitgen.VariableRateMonoReader;
+import com.jsyn.unitgen.VariableRateStereoReader;
+
+/**
+ * Play a sample from a WAV file using JSyn.
+ * 
+ * @author Phil Burk (C) 2010 Mobileer Inc
+ */
+public class DebugSampleLoader {
+    private Synthesizer synth;
+    private VariableRateDataReader samplePlayer;
+    private LineOut lineOut;
+
+    private void test() throws IOException {
+        // File sampleFile = new File("samples/cello_markers.wav");
+        // File sampleFile = new File("samples/Piano_A440_PT.aif");
+        File sampleFile = new File("samples/sine_400_loop_i16.wav");
+        // File sampleFile = new File("samples/TwoDiffPitchedSines_F32_PT.wav");
+        // File sampleFile = new File("samples/sine_400_u8.aif");
+        // File sampleFile = new File("samples/sine_400_s8.aif");
+        // File sampleFile = new File("samples/sine_400_ulaw.aif");
+        // File sampleFile = new File("samples/sine_400_ulaw.wav");
+
+        // File sampleFile = new File("samples/aaClarinet.wav");
+        // File sampleFile = new File("samples/sine_400_mono.wav");
+        // File sampleFile = new File("samples/sine_200_300_i16.wav");
+        // File sampleFile = new File("samples/sine_200_300_i24.wav");
+        // File sampleFile = new File("samples/M1F1-int16-AFsp.wav");
+        // File sampleFile = new File("samples/M1F1-int24-AFsp.wav");
+        // File sampleFile = new File("samples/M1F1-float32-AFsp.wav");
+        // File sampleFile = new File("samples/M1F1-int16WE-AFsp.wav");
+        // File sampleFile = new File("samples/M1F1-int24WE-AFsp.wav");
+        // File sampleFile = new File("samples/M1F1-float32WE-AFsp.wav");
+        // File sampleFile = new File("samples/sine_200_300_i16.aif");
+        // File sampleFile = new File("samples/sine_200_300_f32.wavex");
+        // File sampleFile = new File("samples/Sine32bit.aif");
+        // File sampleFile = new File("samples/Sine32bit.wav");
+        // File sampleFile = new File("samples/smartCue.wav");
+
+        // URL sampleFile = new URL("http://www.softsynth.com/samples/Clarinet.wav");
+
+        synth = JSyn.createSynthesizer();
+
+        FloatSample sample;
+        try {
+            // Add an output mixer.
+            synth.add(lineOut = new LineOut());
+
+            // Load the sample and display its properties.
+            SampleLoader.setJavaSoundPreferred(false);
+            sample = SampleLoader.loadFloatSample(sampleFile);
+            System.out.println("Sample has: channels  = " + sample.getChannelsPerFrame());
+            System.out.println("            frames    = " + sample.getNumFrames());
+            System.out.println("            rate      = " + sample.getFrameRate());
+            System.out.println("            loopStart = " + sample.getSustainBegin());
+            System.out.println("            loopEnd   = " + sample.getSustainEnd());
+
+            if (sample.getChannelsPerFrame() == 1) {
+                synth.add(samplePlayer = new VariableRateMonoReader());
+                samplePlayer.output.connect(0, lineOut.input, 0);
+            } else if (sample.getChannelsPerFrame() == 2) {
+                synth.add(samplePlayer = new VariableRateStereoReader());
+                samplePlayer.output.connect(0, lineOut.input, 0);
+                samplePlayer.output.connect(1, lineOut.input, 1);
+            } else {
+                throw new RuntimeException("Can only play mono or stereo samples.");
+            }
+
+            // Start synthesizer using default stereo output at 44100 Hz.
+            synth.start();
+
+            samplePlayer.rate.set(sample.getFrameRate());
+
+            // We only need to start the LineOut. It will pull data from the
+            // sample player.
+            lineOut.start();
+
+            // We can simply queue the entire file.
+            // Or if it has a loop we can play the loop for a while.
+            if (sample.getSustainBegin() < 0) {
+                System.out.println("queue the sample");
+                samplePlayer.dataQueue.queue(sample);
+            } else {
+                System.out.println("queueOn the sample");
+                samplePlayer.dataQueue.queueOn(sample);
+                synth.sleepFor(8.0);
+                System.out.println("queueOff the sample");
+                samplePlayer.dataQueue.queueOff(sample);
+            }
+
+            // Wait until the sample has finished playing.
+            do {
+                synth.sleepFor(1.0);
+            } while (samplePlayer.dataQueue.hasMore());
+
+        } catch (IOException e1) {
+            e1.printStackTrace();
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+        }
+        // Stop everything.
+        synth.stop();
+    }
+
+    public static void main(String[] args) {
+        try {
+            new DebugSampleLoader().test();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}