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/*Name:
*Date:
*Period:
*Teacher:
*Description:
*/
package sound;
//Java program to play audio files. imports file scanning and various
//methods from the java audio class in order to do so.
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
public class ShortAudioPlayer implements LineListener
{
//indicates whether the playback completes or not
boolean playCompleted;
Clip audioClip;
public void play(String audioFilePath)
{
File audioFile = new File(audioFilePath);
try
{
//creates an audioInput object using the file we
//declared earlier
AudioInputStream audioStream = AudioSystem.getAudioInputStream(audioFile);
//gets the format of the audioStream object
AudioFormat format = audioStream.getFormat();
DataLine.Info info = new DataLine.Info(Clip.class, format);
audioClip = (Clip) AudioSystem.getLine(info);
audioClip.addLineListener(this);
audioClip.open(audioStream);
audioClip.start();
while (!playCompleted)
{
// wait for the playback to complete
try
{
Thread.sleep(1000);
}
catch (InterruptedException ex)
{
ex.printStackTrace();
}
}
audioClip.close(); //stops the audio clip
}
catch (UnsupportedAudioFileException ex)
{
System.out.println("The specified audio file is not supported.");
ex.printStackTrace();
}
catch (LineUnavailableException ex)
{
System.out.println("Audio line for playing back is unavailable.");
ex.printStackTrace();
}
catch (IOException ex)
{
System.out.println("Error playing the audio file.");
ex.printStackTrace();
}
}
/**
* Listens to the START and STOP events of the audio line.
*/
@Override
public void update(LineEvent event)
{
LineEvent.Type type = event.getType();
if (type == LineEvent.Type.START)
{
System.out.println("Playback started.");
}
else if (type == LineEvent.Type.STOP)
{
playCompleted = true;
System.out.println("Playback completed.");
}
}
}
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