public void go() {
setUpGui();
try {
Sequencer sequencer = MidiSystem.getSequencer();
sequencer.open();
// make a sequencer and open
sequencer.addControllerEventListener(m1, new int[] {127});
Sequence seq = new Sequence(Sequence.PPQ, 4);
Track track = seq.createTrack();
int r = 0;
for (int i = 0; i < 300; i += 4) {
r = (int) ((Math.random() * 50) + 1);
track.add(makeEvent(144, 1, r, 100, i));
track.add(makeEvent(176, 1, 127, 0, i));
track.add(makeEvent(128, 1, r, 100, i + 2));
} // end loop
sequencer.setSequence(seq);
sequencer.start();
sequencer.setTempoInBPM(120);
} catch (Exception ex) {
ex.printStackTrace();
}
} // close method
public Sequence getSequence(InputStream inputStream)
throws InvalidMidiDataException, IOException {
MidiFileFormat midiFileFormat = getMidiFileFormat(inputStream);
Sequence sequence =
new Sequence(midiFileFormat.getDivisionType(), midiFileFormat.getResolution());
DataInputStream dataInputStream = new DataInputStream(inputStream);
int nNumTracks = ((TMidiFileFormat) midiFileFormat).getTrackCount();
for (int nTrack = 0; nTrack < nNumTracks; nTrack++) {
Track track = sequence.createTrack();
readTrack(dataInputStream, track);
}
return sequence;
}
public void go() {
try {
sq.open();
Sequence seq = new Sequence(Sequence.PPQ, 4);
Track track = seq.createTrack();
track.add(addNote(144, 9, 56, 100, 1));
track.add(addNote(128, 9, 56, 100, 4));
sq.setSequence(seq);
sq.setTempoInBPM(tempo);
sq.setLoopCount(Sequencer.LOOP_CONTINUOUSLY);
sq.start();
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* Import a song into the MidiExporter to play or export.
*
* @param song The Song to convert to MIDI
*/
public void importSong(Song song) {
// Fetch important data from the song.
// Meaning, metadata and the song itself.
Beat[] beats = song.getBeatArray();
this.song = song;
// Create a track for each voice.
int numVoices = song.getNumVoices();
for (int voiceCount = 0; voiceCount < numVoices; voiceCount++) {
sequence.createTrack();
}
// Iterate through each beat, adding each note to the corresponding
// track.
Track[] tracks = sequence.getTracks();
for (int beat = 0; beat < beats.length; beat++) {
Note[] firstHalf = beats[beat].getNotesFirstHalf();
Note[] secondHalf = beats[beat].getNotesSecondHalf();
// Iterate through each note in the beat, adding it to the
// corresponding track.
for (int note = 0; note < firstHalf.length; note++) {
if (firstHalf[note] == secondHalf[note]) {
createNote(firstHalf[note], 2 * beat, 2, tracks[note]);
} else {
createNote(firstHalf[note], 2 * beat, 1, tracks[note]);
createNote(secondHalf[note], 2 * beat + 1, 1, tracks[note]);
} // if/else
} // for
} // for
try {
setUpSequencer();
} catch (MidiUnavailableException ex) {
System.out.println("Unable to set up sequencer");
// do nothing
}
}
public boolean writeSequence(NoteList noteList) {
this.noteList = noteList;
toneMap = toneMapFrame.getToneMap();
timeSet = toneMap.getTimeSet();
pitchSet = toneMap.getPitchSet();
timeRange = timeSet.getRange();
pitchRange = pitchSet.getRange();
if (!buildNoteSequence()) return false;
try {
sequence = new Sequence(Sequence.PPQ, 10);
} catch (Exception ex) {
ex.printStackTrace();
return false;
}
track = sequence.createTrack();
startTime = System.currentTimeMillis();
// add a program change right at the beginning of
// the track for the current instrument
createEvent(PROGRAM, cc.program + 1, 1);
for (int i = 0; i < noteSequence.size(); i++) {
noteSequenceElement = noteSequence.get(i);
if (noteSequenceElement.state == ON)
if (!createEvent(NOTEON, noteSequenceElement.note, noteSequenceElement.tick)) return false;
if (noteSequenceElement.state == OFF)
if (!createEvent(NOTEOFF, noteSequenceElement.note, noteSequenceElement.tick)) return false;
}
return true;
}