10 January, 2008

Simple Java MIDI synthesizer sample

Another multi-media sample - simplest Java MIDI synthesizer.


import javax.sound.midi.*;
public class MidiSynthesizerSample {
  public static void main(String[] args) {
      int[] notes = new int[]{60, 62, 64, 65, 67, 69, 71, 72, 72, 71, 69, 67, 65, 64, 62, 60};
      try {
          Synthesizer synthesizer = MidiSystem.getSynthesizer();
          MidiChannel channel = synthesizer.getChannels()[0];
          for (int note : notes) {
              channel.noteOn(note, 50);
              try {
              } catch (InterruptedException e) {
              } finally {
      } catch (MidiUnavailableException e) {

See example of Java MIDI application:

09 January, 2008

Simple Java MIDI player sample

New Year!

- is a musical project. It is a bayan keyboard emulator, Java MIDI application for personal computers.
Now everybody can play bayan (button accordion).

XenoHarmonica is free for education and non-commercial usage.

Program based on Java MIDI API.
In this article I provide an example of simplest MIDI player.

Maybe somebody else going to create MIDI program :-)

package xantorohara.xenoharmonica.samples;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.MidiUnavailableException;
import javax.sound.midi.Sequence;
import javax.sound.midi.Sequencer;
import java.io.FileInputStream;
public class MidiPlayerSample {
    public static void main(String[] args) {
        try {
            Sequencer sequencer = MidiSystem.getSequencer();
            if (sequencer == null)
                throw new MidiUnavailableException();
            FileInputStream is = new FileInputStream("sample.mid");
            Sequence mySeq = MidiSystem.getSequence(is);
        } catch (Exception e) {

Windows XP hibernate mode problem

Do you have a problem with Hibernate mode in Windows XP?
And you can't turn on Hibernate mode from Power Options Panel, it says: "The process cannot access the file because it is being used by another process".
I found one crasy method how to resolve this problem on my computer (AMD64/1G RAM/MB Asus M2NE/Video Asus N7600/IDE HDD).

  • Delete file: WINDOWS\system32\drivers\atapi.sys (it will be restored by Windows).

  • Manualy enable hibernate mode (now it isn't throw error message).

  • Switch computer to Hibernate mode.

Is it helpful?