@Override
public void actionPerformed(final ActionEvent e) {
String name = e.getActionCommand();
PitchEstimationAlgorithm newAlgo = PitchEstimationAlgorithm.valueOf(name);
algo = newAlgo;
if (currentFile != null) {
estimationDispatcher.stop();
sourceDispatcher.stop();
startFile(currentFile);
}
}
@Ignore
@Test
public void testSilenceWriter()
throws UnsupportedAudioFileException, InterruptedException, LineUnavailableException,
FileNotFoundException {
float sampleRate = 44100;
int bufferSize = 1024;
int overlap = 0;
// available mixers
int index = 0;
int selectedMixerIndex = 4;
for (Mixer.Info mixer : AudioSystem.getMixerInfo()) {
System.out.println(index + ": " + Shared.toLocalString(mixer));
index++;
}
Mixer.Info selectedMixer = AudioSystem.getMixerInfo()[selectedMixerIndex];
System.out.println("Selected mixer: " + Shared.toLocalString(selectedMixer));
// open a line
final Mixer mixer = AudioSystem.getMixer(selectedMixer);
final AudioFormat format = new AudioFormat(sampleRate, 16, 1, true, true);
final DataLine.Info dataLineInfo = new DataLine.Info(TargetDataLine.class, format);
TargetDataLine line;
line = (TargetDataLine) mixer.getLine(dataLineInfo);
final int numberOfSamples = bufferSize;
line.open(format, numberOfSamples);
line.start();
final AudioInputStream stream = new AudioInputStream(line);
// create a new dispatcher
AudioDispatcher dispatcher = new AudioDispatcher(stream, bufferSize, overlap);
WaveformWriter writer = new WaveformWriter(format, "01.file.wav");
// add a processor, handle percussion event.
dispatcher.addAudioProcessor(new SilenceDetector());
dispatcher.addAudioProcessor(writer);
// run the dispatcher (on the same thread, use start() to run it on
// another thread).
new Thread(dispatcher).start();
Thread.sleep(3000);
dispatcher.removeAudioProcessor(writer);
writer = new WaveformWriter(format, "02.file.wav");
dispatcher.addAudioProcessor(writer);
Thread.sleep(3000);
dispatcher.stop();
}
private void setNewMixer(Mixer mixer)
throws LineUnavailableException, UnsupportedAudioFileException {
if (dispatcher != null) {
dispatcher.stop();
}
if (fileName == null) {
final AudioFormat format = new AudioFormat(sampleRate, 16, 1, true, false);
final DataLine.Info dataLineInfo = new DataLine.Info(TargetDataLine.class, format);
TargetDataLine line;
line = (TargetDataLine) mixer.getLine(dataLineInfo);
final int numberOfSamples = bufferSize;
line.open(format, numberOfSamples);
line.start();
final AudioInputStream stream = new AudioInputStream(line);
// create a new dispatcher
dispatcher = new AudioDispatcher(stream, bufferSize, overlap);
} else {
try {
File audioFile = new File(fileName);
dispatcher = AudioDispatcher.fromFile(audioFile, bufferSize, overlap);
AudioFormat format = AudioSystem.getAudioFileFormat(audioFile).getFormat();
dispatcher.addAudioProcessor(new AudioPlayer(format));
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
currentMixer = mixer;
// add a processor, handle pitch event.
dispatcher.addAudioProcessor(new PitchProcessor(algo, sampleRate, bufferSize, this));
dispatcher.addAudioProcessor(fftProcessor);
// run the dispatcher (on a new thread).
new Thread(dispatcher, "Audio dispatching").start();
}