fix src folder structure

src/main/java/audio/AudioException.java

@@ -0,0 +1,16 @@
+package audio;
+
+public class AudioException extends Exception
+{
+	private static final long serialVersionUID = 1L;
+
+	public AudioException( String description )
+	{
+		super( description );
+	}
+	
+	public AudioException( String description, Throwable throwable )
+	{
+		super( description, throwable );
+	}
+}