How to Make a MIDI Loop in Java

The MIDI audio format sends an electronic signal that is handled by a sequencer. The Java language includes methods and classes specifically designed to control MIDI files and sequencers. Repeating or looping a MIDI file requires the Loop Continuously value in a sequencer method.

Instructions

1. Add the following import code to the beginning of your Java program:

   import javax.sound.midi.*;
   import java.io.*;

2. Create a MidiPlayer class in your program:

   class MidiPlayer {
   }

3. Place the following code between the opening and closing brackets of the MidiPlayer class:

   public static void play(String filename) {
   }

4. Insert the following code between the opening and closing brackets of the play object:

   sequencer = MidiSystem.getSequencer();
   File midiFile = new File(filename);
   sequencer.setSequence(MidiSystem.getSequence(midiFile));
   sequencer.setLoopCount(Sequencer.LOOP_CONTINUOUSLY);
   sequencer.open();
   sequencer.start();

5. Play the MIDI file:

   MidiPlayer.play(midiFilename);

   Replace "midiFilename" with the name of the file that you want to play.

References

• Oracle: Java Library: Interface MidiDevice
• Oracle: Java Library: LOOP_CONTINUOUSLY

Resources

• Oracle: The Java Tutorials