/**
* Creates a WAV file based on the Sequence, using the default soundbank.
*
* @param sequence
* @param outputFile
* @throws MidiUnavailableException
* @throws InvalidMidiDataException
* @throws IOException
*/
public void createWavFile(final Sequence sequence, final File outputFile)
throws MidiUnavailableException, InvalidMidiDataException, IOException {
/*
* Open synthesizer in pull mode in the format 96000hz 24 bit stereo
* using Sinc interpolation for highest quality. With 1024 as max
* polyphony.
*/
final AudioFormat format = new AudioFormat(96000, 24, 2, true, false);
final Map<String, Object> map = new HashMap<String, Object>();
map.put("interpolation", "sinc");
map.put("max polyphony", "1024");
AudioInputStream stream = synth.openStream(format, map);
// Play Sequence into AudioSynthesizer Receiver.
final double total = send(sequence, synth.getReceiver());
// Calculate how long the WAVE file needs to be.
final long len = (long) (stream.getFormat().getFrameRate() * (total + 40));
stream = new AudioInputStream(stream, stream.getFormat(), len);
// Write WAVE file to disk.
AudioSystem.write(stream, AudioFileFormat.Type.WAVE, outputFile);
this.synth.close();
}
public static void main(String[] args) throws Exception {
AudioSynthesizer synth = new SoftSynthesizer();
synth.openStream(null, null);
Soundbank defsbk = synth.getDefaultSoundbank();
if (defsbk != null) {
assertTrue(defsbk.getInstruments().length == synth.getLoadedInstruments().length);
}
synth.close();
}
/**
* Creates a WAV file based on a MIDI file, using the default sound bank.
*
* @param midiFile The MIDI file.
* @param outputFile An output file.
* @throws MidiUnavailableException When the synthesizer is not available.
* @throws InvalidMidiDataException When the MIDI data is invalid.
* @throws IOException If the WAV file can not be written.
*/
public void createWavFile(final File midiFile, final File outputFile)
throws MidiUnavailableException, InvalidMidiDataException, IOException {
// Create a AdvancedAudioPlayer with this Synthesizer, and get a Sequence
final Sequence sequence = MidiSystem.getSequence(midiFile);
final Sequencer sequencer = MidiSystem.getSequencer(false);
sequencer.getTransmitter().setReceiver(synth.getReceiver());
createWavFile(sequence, outputFile);
}
/**
* Creates a WAV file based on the Sequence, using the sounds from the specified soundbank; to
* prevent memory problems, this method asks for an array of patches (instruments) to load.
*
* @param soundbankFile
* @param midiFile
* @param outputFile
* @throws MidiUnavailableException
* @throws InvalidMidiDataException
* @throws IOException
*/
public void createWavFile(final File soundbankFile, final File midiFile, final File outputFile)
throws MidiUnavailableException, InvalidMidiDataException, IOException {
// Load soundbank
final Soundbank soundbank = loadSoundbank(soundbankFile);
// Open the Synthesizer and load the requested instruments
this.synth.open();
this.synth.unloadAllInstruments(soundbank);
final Instrument[] instruments = soundbank.getInstruments();
for (final Instrument instrument : instruments) {
synth.loadInstrument(instrument);
}
createWavFile(midiFile, outputFile);
}
public static void render(OutputStream os, AudioFormat format, Map<String, Object> info)
throws Exception {
AudioSynthesizer synth = (AudioSynthesizer) new SoftSynthesizer();
AudioInputStream stream = synth.openStream(format, info);
Receiver recv = synth.getReceiver();
Soundbank defsbk = synth.getDefaultSoundbank();
if (defsbk != null) synth.unloadAllInstruments(defsbk);
synth.loadAllInstruments(soundbank);
double totalTime = 5;
send(sequence, recv);
long len = (long) (stream.getFormat().getFrameRate() * (totalTime + 4));
stream = new AudioInputStream(stream, stream.getFormat(), len);
long t = System.currentTimeMillis();
AudioSystem.write(stream, AudioFileFormat.Type.WAVE, os);
t = System.currentTimeMillis() - t;
stream.close();
}
