Examples with AudioSynthesizer com.sun.media.sound.AudioSynthesizer used on opensource projects

Example 6 with AudioSynthesizer

use of com.sun.media.sound.AudioSynthesizer in project Zong by Xenoage.

the class SynthManager method findAudioSynthesizer.

private AudioSynthesizer findAudioSynthesizer() throws MidiUnavailableException {
    // first check if default synthesizer is AudioSynthesizer.
    Synthesizer synth = MidiSystem.getSynthesizer();
    if (synth instanceof AudioSynthesizer)
        return (AudioSynthesizer) synth;
    // if default synthesizer is not AudioSynthesizer, check others.
    Info[] infos = MidiSystem.getMidiDeviceInfo();
    for (val info : infos) {
        MidiDevice dev = MidiSystem.getMidiDevice(info);
        if (dev instanceof AudioSynthesizer)
            return (AudioSynthesizer) dev;
    }
    // no AudioSynthesizer was found, return null.
    return null;
}

Example 7 with AudioSynthesizer

use of com.sun.media.sound.AudioSynthesizer in project jdk8u_jdk by JetBrains.

the class NoteOverFlowTest2 method main.

public static void main(String[] args) throws Exception {
    // Create instance of the synthesizer with very low polyphony
    AudioSynthesizer synth = new SoftSynthesizer();
    AudioFormat format = new AudioFormat(44100, 16, 2, true, false);
    Map<String, Object> p = new HashMap<String, Object>();
    p.put("max polyphony", new Integer(5));
    AudioInputStream stream = synth.openStream(format, p);
    // Create instrument with too many regions (more than max polyphony)
    SF2Soundbank sf2 = new SF2Soundbank();
    SF2Sample sample = new SF2Sample(sf2);
    sample.setName("test sample");
    sample.setData(new byte[100]);
    sample.setSampleRate(44100);
    sample.setOriginalPitch(20);
    sf2.addResource(sample);
    SF2Layer layer = new SF2Layer(sf2);
    layer.setName("test layer");
    sf2.addResource(layer);
    for (int i = 0; i < 100; i++) {
        SF2LayerRegion region = new SF2LayerRegion();
        region.setSample(sample);
        layer.getRegions().add(region);
    }
    SF2Instrument ins = new SF2Instrument(sf2);
    ins.setPatch(new Patch(0, 0));
    ins.setName("test instrument");
    sf2.addInstrument(ins);
    SF2InstrumentRegion insregion = new SF2InstrumentRegion();
    insregion.setLayer(layer);
    ins.getRegions().add(insregion);
    // Load the test soundbank into the synthesizer
    synth.unloadAllInstruments(synth.getDefaultSoundbank());
    synth.loadAllInstruments(sf2);
    // Send out one midi on message
    MidiChannel ch1 = synth.getChannels()[0];
    ch1.programChange(0);
    ch1.noteOn(64, 64);
    // Read 1 sec from stream
    stream.skip(format.getFrameSize() * ((int) (format.getFrameRate() * 2)));
    // Close the synthesizer after use
    synth.close();
}

Example 8 with AudioSynthesizer

use of com.sun.media.sound.AudioSynthesizer in project jdk8u_jdk by JetBrains.

the class TestPreciseTimestampRendering method test.

public static void test(Soundbank soundbank) throws Exception {
    // Create instance of synthesizer using the testing soundbank above
    AudioSynthesizer synth = new SoftSynthesizer();
    AudioInputStream stream = synth.openStream(format, null);
    synth.unloadAllInstruments(synth.getDefaultSoundbank());
    synth.loadAllInstruments(soundbank);
    Receiver recv = synth.getReceiver();
    // Set volume to max and turn reverb off
    ShortMessage reverb_off = new ShortMessage();
    reverb_off.setMessage(ShortMessage.CONTROL_CHANGE, 91, 0);
    recv.send(reverb_off, -1);
    ShortMessage full_volume = new ShortMessage();
    full_volume.setMessage(ShortMessage.CONTROL_CHANGE, 7, 127);
    recv.send(full_volume, -1);
    Random random = new Random(3485934583945l);
    // Create random timestamps
    long[] test_timestamps = new long[30];
    for (int i = 1; i < test_timestamps.length; i++) {
        test_timestamps[i] = i * 44100 + (int) (random.nextDouble() * 22050.0);
    }
    // Send midi note on message to synthesizer
    for (int i = 0; i < test_timestamps.length; i++) {
        ShortMessage midi_on = new ShortMessage();
        midi_on.setMessage(ShortMessage.NOTE_ON, 69, 127);
        recv.send(midi_on, (long) ((test_timestamps[i] / 44100.0) * 1000000.0));
    }
    // Measure timing from rendered audio
    float[] fbuffer = new float[100];
    byte[] buffer = new byte[fbuffer.length * format.getFrameSize()];
    long firsts = -1;
    int counter = 0;
    long s = 0;
    long max_jitter = 0;
    outerloop: for (int k = 0; k < 10000000; k++) {
        stream.read(buffer);
        AudioFloatConverter.getConverter(format).toFloatArray(buffer, fbuffer);
        for (int i = 0; i < fbuffer.length; i++) {
            if (fbuffer[i] != 0) {
                if (firsts == -1)
                    firsts = s;
                long measure_time = (s - firsts);
                long predicted_time = test_timestamps[counter];
                long jitter = Math.abs(measure_time - predicted_time);
                if (jitter > 10)
                    max_jitter = jitter;
                counter++;
                if (counter == test_timestamps.length)
                    break outerloop;
            }
            s++;
        }
    }
    synth.close();
    if (counter == 0)
        throw new Exception("Nothing was measured!");
    if (max_jitter != 0) {
        throw new Exception("Jitter has occurred! " + "(max jitter = " + max_jitter + ")");
    }
}

Example 9 with AudioSynthesizer

use of com.sun.media.sound.AudioSynthesizer in project Zong by Xenoage.

the class SynthManager method initMidi.

/**
 * (Re)initializes the MIDI objects and (re)configures the audio settings.
 * If currently playback is running, it is stopped.
 * TIDY
 * @param sampleRate		    the number of samples per second, e.g. 44100
 * @param sampleSizeInBits	the number of bits in each sample, e.g. 16
 * @param channels			    the number of channels (1 for mono, 2 for stereo, and so on)
 * @param latency           the latency in ms
 * @param polyphony         maximum number of concurrent notes
 * @param deviceName        name of the device, or null for default
 * @param interpolation     linear, cubic, sinc or point
 */
public void initMidi(float sampleRate, int sampleSizeInBits, int channels, int latency, int polyphony, String deviceName, String interpolation) throws MidiUnavailableException {
    Sequence sequence = null;
    if (sequencer != null) {
        sequencer.stop();
        sequence = sequencer.getSequence();
    }
    if (synthesizer != null) {
        synthesizer.close();
    }
    if (mixer != null) {
        mixer.close();
    }
    format = new AudioFormat(sampleRate, sampleSizeInBits, channels, true, false);
    if (deviceName != null) {
        Mixer.Info selinfo = null;
        for (Mixer.Info info : AudioSystem.getMixerInfo()) {
            Mixer mixer = AudioSystem.getMixer(info);
            boolean hassrcline = false;
            for (Line.Info linfo : mixer.getSourceLineInfo()) {
                if (linfo instanceof javax.sound.sampled.DataLine.Info) {
                    hassrcline = true;
                    break;
                }
            }
            if (hassrcline) {
                if (info.getName().equals(deviceName)) {
                    selinfo = info;
                    break;
                }
            }
        }
        if (selinfo != null) {
            mixer = AudioSystem.getMixer(selinfo);
            try {
                mixer.open();
                int bufferSize = (int) (format.getFrameSize() * format.getFrameRate() * latency / 1000f);
                if (bufferSize < 500)
                    bufferSize = 500;
                DataLine.Info dataLineInfo = new DataLine.Info(SourceDataLine.class, format, bufferSize);
                if (mixer.isLineSupported(dataLineInfo)) {
                    line = (SourceDataLine) mixer.getLine(dataLineInfo);
                    line.open(format, bufferSize);
                    line.start();
                }
            } catch (Throwable t) {
                mixer = null;
            }
        }
    }
    Map<String, Object> ainfo = new HashMap<>();
    ainfo.put("format", format);
    ainfo.put("max polyphony", polyphony);
    ainfo.put("latency", latency * 1000L);
    ainfo.put("interpolation", interpolation);
    ainfo.put("large mode", true);
    AudioSynthesizer synth = findAudioSynthesizer();
    if (synth == null)
        // no audio synthesizer
        return;
    synth.open(line, ainfo);
    synthesizer = synth;
    if (soundbank == null) {
        soundbank = synth.getDefaultSoundbank();
    }
    if (sequencer == null) {
        try {
            sequencer = MidiSystem.getSequencer(false);
        } catch (MidiUnavailableException ex) {
        // sequencer already open. no problem.
        }
    }
    if (sequencer.isOpen()) {
        sequencer.close();
    }
    sequencer.getTransmitter().setReceiver(synthesizer.getReceiver());
    sequencer.open();
    if (sequence != null) {
        try {
            sequencer.setSequence(sequence);
        } catch (InvalidMidiDataException ex) {
        }
    }
}