List of usage examples for javax.sound.midi Sequence createTrack
public Track createTrack()
From source file:Main.java
public static void main(String[] args) { JFrame frame = new JFrame(); DrawPanel dp = new DrawPanel(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setContentPane(dp);/*from ww w. j a v a 2s .c o m*/ frame.pack(); frame.setLocationByPlatform(true); try { Sequence seq = new Sequence(Sequence.PPQ, 4); Track track = seq.createTrack(); for (int i = 0; i < 120; i += 4) { int d = (int) Math.abs(new Random().nextGaussian() * 24) + 32; track.add(makeEvent(ShortMessage.NOTE_ON, 1, d, 127, i)); track.add(makeEvent(ShortMessage.CONTROL_CHANGE, 1, 127, 0, i)); track.add(makeEvent(ShortMessage.NOTE_OFF, 1, d, 127, i)); } Sequencer sequencer = MidiSystem.getSequencer(); sequencer.open(); sequencer.setSequence(seq); sequencer.addControllerEventListener(dp, new int[] { 127 }); sequencer.start(); } catch (Exception e) { e.printStackTrace(); } frame.setVisible(true); }
From source file:PlayerPiano.java
public static void addTrack(Sequence s, int instrument, int tempo, char[] notes) throws InvalidMidiDataException { Track track = s.createTrack(); // Begin with a new track // Set the instrument on channel 0 ShortMessage sm = new ShortMessage(); sm.setMessage(ShortMessage.PROGRAM_CHANGE, 0, instrument, 0); track.add(new MidiEvent(sm, 0)); int n = 0; // current character in notes[] array int t = 0; // time in ticks for the composition // These values persist and apply to all notes 'till changed int notelength = 16; // default to quarter notes int velocity = 64; // default to middle volume int basekey = 60; // 60 is middle C. Adjusted up and down by octave boolean sustain = false; // is the sustain pedal depressed? int numnotes = 0; // How many notes in current chord? while (n < notes.length) { char c = notes[n++]; if (c == '+') basekey += 12; // increase octave else if (c == '-') basekey -= 12; // decrease octave else if (c == '>') velocity += 16; // increase volume; else if (c == '<') velocity -= 16; // decrease volume; else if (c == '/') { char d = notes[n++]; if (d == '2') notelength = 32; // half note else if (d == '4') notelength = 16; // quarter note else if (d == '8') notelength = 8; // eighth note else if (d == '3' && notes[n++] == '2') notelength = 2;// w w w .j a v a 2s . co m else if (d == '6' && notes[n++] == '4') notelength = 1; else if (d == '1') { if (n < notes.length && notes[n] == '6') notelength = 4; // 1/16th note else notelength = 64; // whole note } } else if (c == 's') { sustain = !sustain; // Change the sustain setting for channel 0 ShortMessage m = new ShortMessage(); m.setMessage(ShortMessage.CONTROL_CHANGE, 0, DAMPER_PEDAL, sustain ? DAMPER_ON : DAMPER_OFF); track.add(new MidiEvent(m, t)); } else if (c >= 'A' && c <= 'G') { int key = basekey + offsets[c - 'A']; if (n < notes.length) { if (notes[n] == 'b') { // flat key--; n++; } else if (notes[n] == '#') { // sharp key++; n++; } } addNote(track, t, notelength, key, velocity); numnotes++; } else if (c == ' ') { // Spaces separate groups of notes played at the same time. // But we ignore them unless they follow a note or notes. if (numnotes > 0) { t += notelength; numnotes = 0; } } else if (c == '.') { // Rests are like spaces in that they force any previous // note to be output (since they are never part of chords) if (numnotes > 0) { t += notelength; numnotes = 0; } // Now add additional rest time t += notelength; } } }
From source file:at.ofai.music.util.WormFileParseException.java
public Sequence toMIDI(EventList pedal) throws InvalidMidiDataException { final int midiTempo = 1000000; Sequence s = new Sequence(Sequence.PPQ, 1000); Track[] tr = new Track[16]; tr[0] = s.createTrack(); MetaMessage mm = new MetaMessage(); byte[] b = new byte[3]; b[0] = (byte) ((midiTempo >> 16) & 0xFF); b[1] = (byte) ((midiTempo >> 8) & 0xFF); b[2] = (byte) (midiTempo & 0xFF); mm.setMessage(0x51, b, 3);//from w w w . ja va 2s . c o m tr[0].add(new MidiEvent(mm, 0L)); for (Event e : l) { // from match or beatTrack file if (e.midiCommand == 0) // skip beatTrack file break; if (tr[e.midiTrack] == null) tr[e.midiTrack] = s.createTrack(); //switch (e.midiCommand) //case ShortMessage.NOTE_ON: //case ShortMessage.POLY_PRESSURE: //case ShortMessage.CONTROL_CHANGE: //case ShortMessage.PROGRAM_CHANGE: //case ShortMessage.CHANNEL_PRESSURE: //case ShortMessage.PITCH_BEND: ShortMessage sm = new ShortMessage(); sm.setMessage(e.midiCommand, e.midiChannel, e.midiPitch, e.midiVelocity); tr[e.midiTrack].add(new MidiEvent(sm, (long) Math.round(1000 * e.keyDown))); if (e.midiCommand == ShortMessage.NOTE_ON) { sm = new ShortMessage(); sm.setMessage(ShortMessage.NOTE_OFF, e.midiChannel, e.midiPitch, 0); tr[e.midiTrack].add(new MidiEvent(sm, (long) Math.round(1000 * e.keyUp))); } } if (pedal != null) { // from MIDI file // if (t.size() > 0) // otherwise beatTrack files leave an empty trk // t = s.createTrack(); for (Event e : pedal.l) { if (tr[e.midiTrack] == null) tr[e.midiTrack] = s.createTrack(); ShortMessage sm = new ShortMessage(); sm.setMessage(e.midiCommand, e.midiChannel, e.midiPitch, e.midiVelocity); tr[e.midiTrack].add(new MidiEvent(sm, (long) Math.round(1000 * e.keyDown))); if (e.midiCommand == ShortMessage.NOTE_ON) { sm = new ShortMessage(); sm.setMessage(ShortMessage.NOTE_OFF, e.midiChannel, e.midiPitch, e.midiVelocity); tr[e.midiTrack].add(new MidiEvent(sm, (long) Math.round(1000 * e.keyUp))); } //catch (InvalidMidiDataException exception) {} } } return s; }